Y-SUS BOARD SECTION

Y-SUS Board develops the V-Scan drive signal to the Y-Drive boards.

• Adjustments
• DC Voltage and Waveform Checks
• Diode Mode Measurements

Operating Voltages

SMPS Supplied

 VA
 VS
 M5V

VA supplies the Panel’s Vertical Electrodes (Routed to the Left X-Board)
VS Supplies the Panel’s Horizontal Electrodes. Also routed to the Z-SUS board.
M5V Supplies Bias to Y-SUS. (From Y-SUS routed to the Control Board then Z-SUS)

Y-SUS Developed

VY VR502
VSC VR501
V SET UP VR401
V SET DN VR402 16V

SET UP sets amplitude of the Top Ramp of Reset in the Drive Waveform
SET DOWN sets the Pitch of the Bottom Ramp for Reset in the Waveform
Used internally to develop the Y-Drive signal. (Also routed to the Control Board then routed to the Z-SUS board)

Floating Ground

FG 5V
FG 15V

Used on the Y-Drive boards (Measured from Floating Gnd)
Used in the Development of the Y-Drive Waveform (Measured from Floating Gnd)

VSC and -VY Adjustments

CAUTION: Use the actual panel label and not the book for exact voltage settings.

These are DC level Voltage Adjustments.

Set should run for 15 minutes, this is the “Heat Run” mode.
Set screen to “White Wash”.
1) Adjust –Vy VR502 to Panel’s Label voltage (+/- 1V)
2) Adjust VSC VR501 to Panel’s Label voltage (+/- 1V)

Y-Drive Signal Overview

Y-Drive Lower Test Point (Top Buffer)

Finding on to the Y-Drive Waveform Tip

Note, this TP (VS_DA) can be used as an External Trigger for scope when locking onto the Y-Drive (Scan) or the Z-Drive signal.

This signal can also be used to help lock the scope when observing the LVDS video signals.

Observing (Capturing) the Y-Drive Signal for Set Up Adjustment

Set must be in “WHITE WASH”
All other DC Voltage adjustments should have already been made.

Fig 1:
As an example of how to lock in to the Y-Drive Waveform.
Fig 1 shows the signal locked in at 2ms per/div.
Note the 2 blanking sections.
The area for adjustment is pointed out within the Waveform.

Fig 2:
At 200uSec per/division, the area of the waveform to use for SET-UP or SET-DN is now becoming clear.
Now the only two blanking signals are present.

Fig 3:
At 100us per/div the area for adjustment of SET-UP or SET-DN is now easier to recognize. It is outlined within the Waveform.
Remember, this is the 1st large signal to the right of blanking.

TIP: If you expand to 100uSec per/division, the adjustment for:
SET-UP can be made using VR402 and the
SET-DN can be made using VR401.
It will make this adjustment easier if you use the “Expanded” mode of your scope.

Set Up and Set Down Adjustments

Set Up Adjustment Too High or Low

Y-SUS Board Troubleshooting VScan.

Y-SUS Board develops the V-Scan drive signal to the Y-Drive boards.
This Section of the Presentation will cover troubleshooting the Y-SUS Board.
Warning: Never run the Y-SUS with P212 (Y-SUS) or P204/P110 (Y-Drives) removed unless the Y-Drive boards are removed completely. Board Failure will occur.

TIP: Use the Scan Output Screw Lugs to test for
V-Scan signal if the Y-Drive boards are removed.

Y-SUS Board P212 Connector to P205 Lower Y-Drive (Logic and FG5V

TIP: Connectors do not come with a new Y-SUS or Y-Drives

Use Scan Screw Lugs to test for Y-Scan signal if the Y-Drive boards are removed.

Y-SUS P212 Connector Diode Mode Testing

Y-SUS Floating Ground (FG 15V) and (FG 5V) Checks

Voltage Measurements for the Y-SUS Board.

TIP: These components are on the back of the board. To Test these voltages, remove the board completely, supply Ground and any 5V supply to M5V fuse FS202.

Y-SUS 16V Generation Check

16V Test Point
Used in the Y-SUS for Waveform Creation and Leaves the Y-SUS board on P101 pins 1~3 to the Control Board.
Checked at Cathode Side D515.
Standby: 0V Diode Check: 1.32V

P101 Y-SUS to Control Board Fuse Information

Y-SUS P113 and P114 Plug Information

Y-SUS P211 Plug Information and Y-SUS P101 to Control P111 Plug Voltage Check

This SHARP projector uses a DMD chip. This very sophisticated chip contains 480,000 pixels. As with any high technology electronic equipment such as large screen TVs, video systems and video cameras, there are certain acceptable tolerances that the equipment must conform to.

This unit has some inactive pixels within acceptable tolerances which may result in inactive dots on the picture screen. This will not affect the picture quality or the life expectancy of the unit.

Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and servicing guidelines.

Be sure to wear sun-glasses when servicing the projector with the lamp turned “on” and the top enclosure removed.

Lamp Replacement

Note:

Since the lamp reaches a very high temperature during units operation replacement of the lamp should be done at least one hour after the power has been turned off. (to allow the lamp to cool off.)

Installing the new lamp, make sure not to touch the lamp (bulb) replace the lamp by holding its reflector.

[Never turn the power on without the lamp to avoid electric-shock or damage of the devices since the stabilizer generates high voltages at its start.]

Connection Pin Assignments

REMOVING OF MAJOR PARTS

Removing the swivel stand and the lamp box.

1-1. Remove lock lever, and remove the swivel stand.

1-2. Loosen 1 scrwew, and remove the lamp door .

1-3. Loosen 3 screws, and take out a lamp box.

Removing the side covers and the top body.

2-1. Push front end of the side cover from bottom, and remove a hook.

2-2. Pull the side cover in the direction of the arrow, and remove it.

2-3. Remove 6 screws and 1connector, and remove a top body.

Removing the main PWB.

3-1. Remove 6 screws.

3-2. Remove each connector on the main PWB.

Removing the power unit.

4-1. Remove each connector on the power PWB.

4-2. Remove 2 screws, and remove the power unit fan.

4-3. Remove 3 screws, and take out the power unit assembly.

4-4. Remove 4 screws, and remove power shield.

Removing the Ballast unit.

5-1. Remove lens shift knob.

5-2. Remove 2 screws, and remove the ballast socket.

5-3. Remove 3 screws, and remove the ballast unit.

5-4. Remove shielding plate, and remove 2 connectors on the ballast PWB.

5-5. Remove 2 screws, and remove ballast PWB.

Removing the optic mechanism unit.

6-1. Remove a connector.

6-2. Remove 6 screws, and remove the optic mechanism Unit

Removing the each other PWBs.

7-1. Remove 1 screw, and remove front R/C receiver PWB unit .

7-2. Remove 1 screw, and remove LED PWB unit.

7-3. Remove 1 screw, and remove a terminal-2 PWB unit.

7-4. Remove 2 screws, and remove an AC socket.

7-5. Remove 1 screw, and remove rear R/C receiver PWB unit.

7-6. Remove 1 screw, and remove DVI-TAN1 PWB unit.

Removing the formatter PWB.  Removing the formatter PWB.

Precautions in replacing the DMD chip

Note: Be careful not to allow dust and fingerprint on the cover glass of DMD chip and prism surface of optical engine.

1. When you fix 4screws of backer plate assembly, press backer plate to formatter PWB and fix by cross multiply step by step.

2. If something shade appears on the projection screen like Fig1, release 2 screws on mirror adjusting plate and move that plate to adjust illumination area of DMD chip.

Precautions in setting up the DMD (Digital Micro mirror Device) unit

Before connecting the formatter PWB to the optical engine, take the following steps. Look at the voltage rank marking that is on the DMD itself. Referring to this marking, set the DIP switches on the formatter PWB. And connect this PWB to the optical engine. Wrong settings will adversely affect the system performance.

Outline of the optical unit

Distinction between long and short focal length lens

• Long focal length lens: focus ring width: about 18 mm > XV-Z90U

• Short focal length lens: focus ring width: about 27 mm > DT-200

Caution when repairing without top cabinet

To repair this set without top cabinet, attach the left side body beforehand. (Since the exhaust heat gets in around the set and the temperature sensor detects it giving the TEMP error and the lamp goes off.)

RESETTING THE TOTAL LAMP TIMER

You need to reset the lamp timer every time you replace the lamp and confirm it is reset on the “Lamp Timer” menu.

• The warning lights on the projector indicate problems inside the projector.

• There are two types of warning lights: a TEMPERATURE WARNING indicator that warns you when the projector is too hot, and a LAMP REPLACEMENT indicator that warns you when to change the lamp.

• If a problem occurs, either the TEMPERATURE WARNING indicator or the LAMP REPLACEMENT indicator will illuminate in red. After turning off the power, follow the procedures given below.

• If the TEMPERATURE WARNING indicator lights up, follow the above possible solutions and then wait until the projector has cooled down completely before turning the power back on. (At least 5 minutes.)

• If the power is turned off and then turned on again, for example during a brief rest, the may be triggered, preventing the power from going on. Should this occur, unplug the power cord from the wall outlet and plug it back in again.

 This SHARP projector uses a DMD chip. This very sophisticated chip contains 480,000 pixels. As with any high technology electronic equipment such as large screen TVs, video systems and video cameras, there are certain acceptable tolerances that the equipment must conform to.  This unit has some inactive pixels within acceptable tolerances which may result in inactive dots on the picture screen. This will not affect the picture quality or the life expectancy of the unit.

RESETTING THE TOTAL LAMP TIMER

You need to reset the lamp timer every time you replace the lamp and confirm it is reset on the “Lamp Timer” menu.

How to reset the total lamp timer.

• The warning lights on the projector indicate problems inside the projector.

• There are two types of warning lights: a TEMPERATURE WARNING indicator that warns you when the projector is too hot, and a LAMP REPLACEMENT indicator that warns you when to change the lamp.

• If a problem occurs, either the TEMPERATURE WARNING indicator or the LAMP REPLACEMENT indicator will illuminate in red. After turning off the power, follow the procedures given below.

• If the TEMPERATURE WARNING indicator lights up, follow the above possible solutions and then wait until the projector has cooled down completely before turning the power back on. (At least 5 minutes.)

• If the power is turned off and then turned on again, for example during a brief rest, the may be triggered, preventing the power from going on. Should this occur, unplug the power cord from the wall outlet and plug it back in again.

Entering the adjustment process mode

There are following two methods.

Press the SW2002 on the MAIN PWB.

Press the following keys in this order.

ADJ UP > ADJ UP > ADJ DOWN > ADJ DOWN> ADJ RIGHT > ADJ LEFT > ENTER.

Adjustment mode process menu

Main unit schematic

Formatter schematic

Power unit schematic

Cabinet and mechanical part exploded view

Product type Theatre Projector

Model XV-Z90U/DT-200

Video system PAL/PAL 60/PAL-M/PAL-N/SECAM/NTSC 3.58/NTSC 4.43/DTV 480i/480P/720P/1080i

Display method DLP chip, RGB optical shutter method

DLP panel Panel size: 0.55” (140mm)

Display method: Single Panel Digital Micro mirror Device (DMD™) by Texas Instruments

Drive method: Digital Light Processing (DLP)

No. of dots: 480,000 dots (800 [H] x 600 [V])

Lens 1–1.2 x zoom lens, F1.75–2.04, f=28–33.5 mm (XV-Z90U) F2–2.4, f=16.9–20.2 mm (DT-200)

Projection lamp 150 W SHP lamp

Horizontal resolution 520 TV lines (NTSC 3.58 input)

RGB input signal 15-PIN MINI D-SUB CONNECTOR (INPUT 2):

RGB separate/composite sync/sync on green type analogue input: 0–0.7 Vp-p, positive,75 Ω terminated

HORIZONTAL SYNC. SIGNAL: TTL level (positive/negative) or composite sync (Apple only)

VERTICAL SYNC. SIGNAL: Same as above

Pixel clock 12–110 MHz

Vertical frequency 43–75 Hz

Horizontal frequency 15–70 kHz

Computer control signal 9-pin D-sub connector (RS-232C Port)

Rated voltage AC 100–240 V

Input current 3.6 A

Rated frequency 50/60 Hz

Power consumption 200 W

 LCD PANEL

This unit uses the flat type panel LCD (Liquid Crystal Display) panel that occupies as little space as possible, instead of the conventional CRT (Cathode Ray Tube), as a display unit.

Since the unit has the two polarizing filter that are at right angles to each other, the unit adopts "normally black" mode, where light does not pass through the polarizing filter and the screen is black when no voltage is applied to the liquid crystals.

PIXEL FAULT

There are three pixel faults - bright fault , dark fault and flicker fault - that are respectively defined as follows.

BRIGHT FAULT

In this pixel fault, a cell that should not light originally is lighting on and off.

For checking this pixel fault, input ALL BLACK SCREEN and find out the cell that is lighting on and off.

DARK FAULT

In this pixel fault, a cell that should light originally is not lighting or lighting with the brightness twice as brighter as originally lighting.

For checking this pixel fault, input 100% of each R/G/B colour and find out the cell that is not lighting.

FLICKER FAULT

In the pixel fault, a cell that should light originally or not light originally is flashing on and off.

For checking this pixel fault, input ALL BLACK SCREEN signal or 100% of each RGB colour and find out the cell that is flashing on and off.

HOW TO ENTER THE SERVICE MODE

(1) Press [MENU] key on the remote control unit simultaneously to display the MENU SCREEN.

(2) In the MENU SCREEN, press the [4] ,[7] ,[2] and [5] key.

(3) The following menu appears on the screen.

HOW TO EXIT THE SERVICE MODE

Press the [MENU] key to exit the Service mode.

 CHANGE AND MEMORY OF SETTING VALUE

 SELECTION OF SETTING MENU & ITEM

• FUNCTION  UP/DN  key: Select the SETTING MENU & ITEM

• [OK] key: Decision the SETTING MENU & ITEM

CHANGE OF SETTING VALUE (DATA)

• FUNCTION  Right/Left  key.

 MEMORY OF SETTING VALUE (DATA)

The setting value will be stored automatically when release the REMOTE CONTROL UNIT keys.

SERVICE MODE SETTING ITEMS

MEMORY IC REPLACEMENT

• This model uses the memory IC.

• This memory IC stores data for proper operation of the video and drive circuits.

• When replacing, be sure to use an IC containing this (initial value) data.

Block diagram

Circuit diagram - JVC LT 30E45SU, LT 30E45SJ, LT 30E45SU/Z, LT 30E45SU/N

Amplifier

Regulator circuit diagram

32LH30 Interconnect

TV Models: JVC LT-32J300, JVC LT-32P300, JVC LT-32JM30, LG 32LG5700, LG 32LH30, LG 32LH3000

Part Number: 6871L-1438C

T-con Board P/N: 6870C-0230A (Similar to 6870C-0266A, LC320WUN)

DESC or Panel Sticker Number: LC320WUN-SAB1

Connections and voltages

37LH55 Interconnect

TV Models: LG 37LH55, LG 37LH5000

PANEL P/N: EAT60664401

Part Number: 6871L-1588A

T-con Board P/N: 6870C-0264B

DESC or Panel Sticker Number: LC370WUD-SBM1

T-CON PWB under shield. Put screws back in before operating set with shield removed.

CN1 Pin-1 is P800 Pin-51 (20 bit LVDS)

Connections and voltages.

42LB5800 Interconnect

TV Models: LG 42LB5600, LG 42LB5800, LG 42LY540S

PANEL P/N: EAJ62572101

Part Number: 6871L-3454D

T-con Board P/N: 6870C-0480A

DESC or Panel Sticker Number: V14 42 DRD 60Hz Control_Ver0.3

 42LG70, 42LG7000, PHILIPS42PFL7403-27, PHILIPS 42PFL7403-F7, VIZIO SV420XVT1A, VIZIO SV431XVT, LG42LH20, LG42LH50, LG42LH90 T’Con boards interconnection details

42LG70 Interconnect

TV Models: LG 42LG70, LG 42LG7000, Philips 42PFL7403D/27, Philips 42PFL7403D/F7, Vizio SV420XVT1A

PANEL P/N: EAT56803001

Part Number: 6871L-2040D

T-con Board P/N:6870C-0202B

DESC or Panel Sticker Number: LC420WUF-SAA1

T-con PWB under shield. Be sure to reinsert screws before operating set with shield removed.

LD1:

Set In Stby: LD1 Off (Anode 0V, Cathode 0V)

Power On: LD1 Lit (Anode 12V, Cathode 0V)

Set On: LD1 Off (Anode 12V, Cathode 9.6V)

42LH20 Interconnect:  TV Models: 42LH20

PANEL P/N:

Part Number: 6871L-1596A

T-con Board P/N: 6870C-0240C

DESC or Panel Sticker Number: LC-420WXN/LC370WXN (or LC420WXESBA1)

Warning: T-con board under shield. Be sure to reinsert screws before operating set with shield removed.

P801 Pin-3 PWM-DIM, 3.15V (Max 100%) to 0.6V (Min 0%) Customer’s MENU backlight setting. However, this is not used on the T-CON Board.

Set In Stby: LED1 Off (Anode 0V, Cathode 0V)

Power On: LED1 Lit (Anode 3.3V, Cathode 0V)

Set On: LED1 Off (Anode 3.3V, Cathode 1.3V)

42LH50 Interconnect:  TV Models: LG 42LH50, LG 42LH5000, LG 42LH5010, VIZIO SV421XVT, SV422XVT

PANEL P/N:

Part Number: 6871L-4700F

T-con Board P/N: 6870C-4100D

DESC or Panel Sticker Number: LC420/470WUF-SBM1_SBL

Set In Stby: LD1 Off (Anode 0V, Cathode 0V)

Power On: LD1 Lit (Anode 3.3V, Cathode 0.7V) 30 seconds later,

Set On: LD1 Off (Anode 3.3V, Cathode 1.38V)

42LH90 Interconnect:  TV Models: LG 42LH90

PANEL P/N: EAT60665101

T-con Board P/N: 6870C-4000H

DESC or Panel Sticker Number: LC320/420/470/550WU_120Hz Control (LC420WUL-SBM1)

42LK520 Interconnect:  TV Models: LG 42LK520_530, LG 42CS570

PANEL P/N:

Part Number: 6871L-1973H

T-con Board P/N: 6870C-0309D

DESC or Panel Sticker Number: LC420WUF-SCA2 (DESC: V5 LC370/420WUD)

Panel Test:  To run the T-CON “Panel Test, remove the LVDS cables. Jump 12V to the 12V fuse. Jump VCC 3.3V to pin-44 on CN1. White, Red, Blue, Green and Black patterns show on screen.

 42LN5300 Interconnect:  TV Models: LG 42LN5200 5300 5400 5700, LG 42WT30, LG 42WL10, Panasonic TH-42LRU60, Sanyo DP42D23 P42D23-00 & P42D23-11

PANEL P/N: EAJ62310701

Part Number: 6871L-3403A

T-con Board P/N: 6870C-0452A

DESC or Panel Sticker Number: LC420DUE-SFR5, LC420DUE-SFR1 (similar to LC500DUE-SFR1)

Warning: Be sure to install the screws in the T-CON board before applying power. Damage to the board will occur.

Panel Test: To run the T-CON “Panel Test”, remove the LVDS cables. Jump 12V to the 12V fuse. Jump VCC 3.3V to pin-44 on CN1. White, Red, Blue, Green and Black patterns show on screen.

LG 42LN5300 P1100 (Mainboard) CN1 (T-CON board) Connector Video Waveforms

All LVDS signals are taken with SMPTY Color Bar signal input (1080P)

Component Input. All LVDS signals are “Differential Pairs”. The ones shown are the “Positive” signal of the pair. The Negative signal looks exactly the same but flipped 180 degree. Scope Settings are 100mV per/division, 2.5uSec per/division.

42LV5500 Interconnect:  TV Models: LG 42LV5400, LG 42LV5500, LG 42LW5300

PANEL P/N: EAJ61749101

Part Number: 6871L-2693A

T-con Board P/N: 6870C-0358A

DESC or Panel Sticker Number: LC420EUF-SDA1 (V6 32/42/47 FHD 120Hz)

Warning: T-CON Board under shield. Be to reinsert screws before operating set with shield removed.

PANEL Test:  To run the T-con “Panel Test”, remove the LVDS cables. Jump 12V to the 12V fuse. Jup VCC 3.3V to pin-44 on CN1. White, Red, Blue, Green and Black patterns show on screen.

Note: Before doing the Panel Test, make sure their backlight can lit/operating normally.

42SL80 Interconnect: TV Models: LG 42SL80

PANEL P/N: EAT60667401

Part Number: 6871L-1828A

T-con Board P/N: 6870C-0259A

DESC or Panel Sticker Number: LC420WUD-SBM4 (42/47 Slim & Narrow 240Hz CONTROL)

47GA6400 Interconnect:  TV Models: LG 47GA6400

PANEL P/N: EAJ62270801

Part Number: 6871L-3264A

T-con Board P/N: 6870C-0444A

DESC or Panel Sticker Number: LC470EUN-SFF2 (DESC: LC470DUE-SFR1)

Warning: Return the screws when servicing the T-CON board with shields removed.

Concerning Quick Start:  If Quick Start is turned on in the Options Menu, T-CON 12V will be available during STBY, but there will be no video to process. Also, no Backlight.

CN2: Global Dimming

(1) Scan 1, (2) Scan 2, (3) Scan 3, (4) GND.  Pins are inverted on inverter.

PANEL Test:  To run the T-CON “Panel Test”, remove the LVDS cable CN1. Jump 12V to the 12V fuse on T-con board. Jump VCC 3.3V to pin-44 on CN1. White, Red, Blue, Green and Black patterns show on screen.

 LG 47LX6500 Interconnect

TV Models: LG 47LX6500

Panel Part Number: EBR61004704

T-con Board P/N: EAX62110705 (0)

DESC or Panel Sticker Number: LC470EUS-SCA1

TV Models: LG 47LX9500

Panel Part Number: EBU0107348, 61004703

T-con Board P/N: EAX61764003(3)

DESC or Panel Sticker Number: LX95M47T480V5 (DESC: LA02M)

55EA9800 Interconnect

TV Models: LG 55EA9800

PANEL P/N: EAJ62407601

Part Number: 6871L-3395B

T-con Board P/N: 6870C-0468B

DESC or Panel Sticker Number: LC550LUD-MFP2-L31

Warning:  Make sure screws are in place, damage to the board may occur if they are left out.

FI13 ~17 are ground protect EMI Filters. 

Make sure before reassembling the cover and counter weights that the Heat Transfer materials “Chocolate” are replaced over UC17 and UC33-U36.

 Applicable to Philips 50PUG6513/78, 50PUG6513/77, 55PUG6513/78, 65PUG6703/77, 55PUG6703/77 Chassis TPM18.6L LA, Platform MTK5802

Mains power : AC 220-240V +/-10%

Power saving features: Eco mode, Picture mute (for radio), Auto switch-off timer, Eco settings menu.

Diagonal screen size

55PUG6703: 139 cm / 55 inch

65PUG6703: 164 cm / 55 inch

55PUx6513: 139 cm / 55 inch

 50PUx6513: 126 cm / 50 inch

 PAL,NTSC,SECAM

 480i – 24Hz, 25Hz, 30Hz, 50Hz, 60Hz

 480p– 24Hz, 25Hz, 30Hz, 50Hz, 60Hz

 576i – 24Hz, 25Hz, 30Hz, 50Hz, 60Hz

 576p– 24Hz, 25Hz, 30Hz, 50Hz, 60Hz

 720p– 24Hz, 25Hz, 30Hz, 50Hz, 60Hz

 1080i– 24Hz, 25Hz, 30Hz, 50Hz, 60Hz

 1080p – 24Hz, 25Hz, 30Hz, 50Hz, 60Hz

Supported Input Resolution – Computer

 640 x 480 – 60Hz

 800 x 600 – 60Hz

 1024 x 768 – 60Hz

 1280 x 800 – 60Hz

 1280 x 960 – 60Hz

 1280 x 1024 – 60Hz

 1366 x 768 – 60Hz

 1440 x 900 – 60Hz

 1920 x 1080 – 60Hz

 3840 x 2160 – 60Hz

HDMI – UHD

(HOME) > Settings > General settings > HDMI Ultra HD

This TV can display Ultra HD signals. Some devices connected with HDMI – do not recognize a TV with Ultra HD and might not work correctly or show distorted picture or sound.

To avoid the malfunctioning of such a device, you can set the signal quality to a level the device can handle. If the device is not using Ultra HD signals, you can switch off Ultra HD for this HDMI connection.

Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g. SN is Lysomice, RJ is Kobierzyce), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the  production year, and digits 7 and 8 refer to production week (in example below it is 2010 week 10 / 2010 week 17). The 6 last digits contain the serial number.

It should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.

The third digit in the serial number (example:

AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number.

By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with. If the third digit of the serial number contains the number “1” (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a “2” (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. This is important for ordering the correct spare parts.

Service Modes

The Service Mode feature is split into following parts:

 Service Alignment Mode (SAM).

 Factory Mode.

 Customer Service Mode (CSM).SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set.

SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set. Some features are:

Make alignments (e.g. White Tone), reset the error buffer(SAM and Factory Mode).

 Display information (“SAM” indication in upper right corner of screen, error buffer, software version, operating hours, options and option codes, sub menus).

The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen. The information provided in CSM and the purpose of CSM is to:

 Increase the home repair hit rate.

 Decrease the number of nuisance calls.

 Solved customers’ problem without home visit.

Note: For the new model range, a new remote control (RC) is used with some renamed buttons. This has an impact on the activation of the Service modes.

For instance the old “MENU” button is now called “HOME” (or is indicated by a “house” icon).

Service Alignment Mode (SAM)

How to Activate SAM

To activate SAM, use one of the following methods:

 Press the following key sequence on the remote control transmitter: “062596”, directly followed by the “INFO/OK” button. Do not allow the display to time out between entries while keying the sequence.

Or via ComPair.

After entering SAM, the following items are displayed, with “SAM” in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.

How to Navigate

 In the SAM menu, select menu items with the UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the UP/DOWN keys to display the next/previous menu items.

 With the “LEFT/RIGHT” keys, it is possible to:

– (De) activate the selected menu item.

– (De) activate the selected sub menu.

– Change the value of the selected menu item.

When you press the MENU button once while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background).

How to Store SAM Settings

To store the settings changed in SAM mode (except the RGB Align settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. The mentioned exceptions must be stored separately via the STORE button.

How to Exit SAM

Use one of the following methods:

 Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set.

 Via a standard RC-transmitter, key in “00” sequence.

Note: When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

Remark:

1. Press following Key Combination to reset the “Op Hour”: “Menu/Home” + “101011” on the remote control transmitter.

2. Under main menu “NVM editor”, select “Service Data”, you can use the UP/DOWN keys to view and change the set Type number, the set Production Number or the 18AC of a part.(The NVM-editor still has the same function as before, alpha-numeric entry.)

Factory mode:

 Displaying and or changing Panel ID information.

 Displaying and or changing Tuner ID information.

 Error buffer clearing.

 Various software alignment settings.

 Testpattern displaying.

 Public Broadcasting Service password Reset.

 etc.

To activate the Factory mode, use the following method:

 Press the following key sequence on the remote control transmitter: from the “menu/home” press “1999”, directly followed by the “Back/Return” button. Do not allow the display to time out between entries while keying the sequence.

After entering the Factory mode, we can see many items displayed, use the UP/DOWN keys to display the next/previous menu items.

How to Exit the Factory mode

 Select EXIT_FACTORY from the menu and press the “OK” button.

Note: When the TV is switched “off” by a power interrupt, or normal switch to “stand-by” while in the factory mode, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

Customer Service Mode (CSM)

The Customer Service Mode shows error codes and information on the TVs operation settings. The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps the call centre to diagnose problems and failures in the TV set before making a service call.

The CSM is a read-only mode; therefore, modifications are not possible in this mode.

How to Activate CSM

To activate CSM, press the following key sequence on a standard remote control transmitter: “123654” (do not allow the display to time out between entries while keying the sequence). After entering the Customer Service Mode, the following items are displayed. use the Right/Left keys to display the next/previous menu items.

Note: Activation of the CSM is only possible if there is no (user) menu on the screen.

How to Navigate

By means of the “CURSOR-DOWN/UP” knob (or the scroll wheel) on the RC-transmitter, can be navigated through the menus.

How to Exit CSM

To exit CSM, use one of the following methods.

 Press the MENU/HOME button on the remote control transmitter.

 Press the POWER button on the remote control transmitter.

 Press the POWER button on the television set.

Software Upgrading, Error code and Panel Code.

The following update is for .pkg file.

1. Rename the file to “upgrade_loader.pkg”.

2. Prepare a USB memory (File format: FLAT, Size: 1G~8G).

3. Copy the software to USB flash disk (root directory).

4. Switch off the TV and Insert the USB memory stick that contains the software update files in one of the TV’s USB 2.0 port.

Note: It contains USB3.0 port, if connect on it, the software may can’t be detected.

5. Switch on the TV. The TV will detect the USB memory s tick automatically. Then a window jumps out as below:

6. When the TV software is updated, the TV will turn on again automatically. Remove your USB flash drive.

7. We can enter in CSM or Factory mode to check the current software version.

The following update is for .upg file.

Step 1: Ready for F/W Upgrade

1. Rename the file to “autorun.upg”.

2. Prepare a USB memory (File format: FLAT, Size: 1G~8G).

3. Copy the software to USB flash disk (root directory).

4. Switch on the TV and Insert the USB memory stick that contains the software update files in one of the TV’s USB 2.0 port.

Note the version of this F/W before you change the software file name.

Step 2: F/W Upgrade

Press [Quick settings], then Choose [Update Software] in the Settings menu

2. Choose [Local Updates], then press OK.

3. Select the file that you downloaded and press OK.

4. Choose [Update], then choose [Start] on following step.

5. Upgrade in progress.

Step 3: Check the SW version.

After burning software, TV will restart

2. Press “123654”, enter Customer Service Mode to check if the software version is correct.

Caution: Please make sure that software upgrade is finished before unplug the USB and AC power.

Error Code

Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every:

• Activated (SW) protection.

• Failing I2C device.

• General I2C error.

The last five errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer.

The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.

An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left.

An error with a designated error code never leads to a deadlock situation. It must always be diagnosable (e.g. error buffer via OSD or blinking LED).

In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed.

How to Read the Error Buffer.

You can read the error buffer in following ways:

On screen via the SAM/CSM (if you have a picture).

Example:

– ERROR: 000 000 000 000 000: No errors detected

– ERROR: 013 000 000 000 000: Error code 13 is the last and only detected error

– ERROR: 034 013 000 000 000: Error code 13 was detected first and error code 34 is the last detected (newest) error

 Via the blinking LED procedure (when you have no picture).

Error codes overview

In this chassis only “layer 2” error codes are available and point to problems on the SSB. They are triggered by LED blinking when CSM is activated. Only the following layer 2 errors are defined:

How to Clear the Error Buffer.

The error code buffer is cleared in the following cases:

By using the CLEAR command in the SAM menu

By using the CLEAR command in the Factory mode:

By using the following key sequence on the remote control transmitter: “062599” directly followed by the OK button.

If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically.

Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset.

Set Option Code

Press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type: see column “Set Option Code” in below tab. After resetting the Display Code, restart the set immediately.

Power board schematic

A 715G8967 PSU (For 6513 Series)

A 715G9325 PSU (For 65” 6703 Series)

B 715G8709SSB POWER - 2K17 MT5802 platform

MICROCONTROLLER CONFIGURATION - SERVICE MODE

1 - Select PR. number 91

2 - Adjust sharpness to minimum and exit all menus.

3 – Within 2 seconds press the key sequence : RED - GREEN – menu.

The software version is displayed beside the word Service, e.g. “SERVICE VER 00.05”.

To exit SERVICE menu press menu key or Std By key.

SERVICE MODE NAVIGATION

PR Up/Down remote keys :    Cycle through the service items available.

Vol -/+ remote keys :    Dec./Increment the values within range – Cycle trough option bits.

OK key :    Toggle bits in option byte.

MICROCONTROLLER CONFIGURATION: OPTION BITS

There are two option bytes available (16 bits in all). These option bits are available from Service mode. First find the OPTION1 or OPTION2 control, and then use the Volume PLUS/MINUS buttons on the remote control keypad to locate the bits, and OK key to toggle them. The table below shows the two option bytes available;

NVM default setting

The purpose of this message, when you change a virgin EEPROM, is to allow to modify the NVM DATA to desired values.

1 - Introduction:

The NVM default values are fixed for the user, but for flexibility in service, these data are stored in NVM and can be changed when the TV set is in a special mode call "NVM EDITOR". This mode can only be access from "FACTORY" mode.

2 - Entering into "FACTORY" mode.

To switch the TV set into FACTORY mode, use the factory remote control, and press on “SVC” key. The factory menu will appear on the screen, showing “FACTORY” , plus other relevant information like software version and date.

WARNING: When in "FACTORY" mode you should not press any key other than the keys described in the procedure below. Unwanted key stroke could misadjust the TV set.

3 - Entering into "NVM EDITOR" mode.

To switch the TV set into NVM EDITOR mode, use the user remote control, and press on “ON/ENTER” key. The NVM EDITOR window will appear on the screen. This mode allow you to access all data stored in NVM. The current NVM address is given in column "ADDR." in both

Decimal and Hexadecimal format. The column DATA gives the value contained at selected address in both Decimal and Hexadecimal format.

4 - Navigation in "NVM EDITOR" mode.

Use Program Up/Dwn keys to select the desired address. Use Volume Up/Down keys to change the data at selected address. You must press " OK/ENTER" key to store value after modification.

The data can be adjusted between 0 and 63.

5 - Exit "NVM EDITOR" mode.

To switch the TV set back into FACTORY mode, use the user remote control, and press on “MENU” key.

The factory menu will appear on the screen, showing “FACTORY”.

6 - Exit "FACTORY" mode.

To exit "FACTORY" mode, use the factory remote control, and press on “SVC” key.

The factory menu will disappear from the screen.

NVM DATA CHANGE LIST

The UOCIII series combines the functions of a Video Signal Processor (VSP) together with a FLASH embedded TEXT/Control/Graphics m-Controller (TCG m-Controller) and US Closed Caption decoder. In addition the following functions can be added:

· Adaptive digital (4H/2H) PAL/NTSC combfilter

· Teletext decoder with 10 page text memory

· Multi-standard stereo decoder

· BTSC stereo decoder

· Digital sound processing circuit

· Digital video processing circuit

PWB Component and print sides

Circuit diagram:  CP093 AND CP093F

 ADJUSTING PROCEDURE

Preparation for Adjustments

Use the exclusive-use AC adapter or stable DC power supply.

AC adapter: UADP-0211CEZZ

DC power supply: 12 ± 0.5V.

Special mode setting procedure

After initialization of E2PROM the mode is changed to the adjustment mode.

[Procedure]

Connect TP2001 and TP2002 to GND, and turn on the power.

[Description]

• The initialization of microcomputer is as follows.

• AV position, DAC data, G/A data, sound processor data, and video chroma data adjustment values are taken as defaults.

(2) Adjustment mode

[Procedure]

Short-circuit TP2001 to GND, and turn on the power.

Or short-circuit TP2002 to GND, and turn on the power.

Or holding down the [TV/VIDEO] key and [MENU] key, turn on the main power, and simultaneously press the (inspection process) [CH DN] key and [VOL– ] key to change the mode to the adjustment mode.

[Description]

The manual adjustment or adjustment through communication with the automatic machine is performed.

(3) Inspection mode

[Procedure]

Holding down the [TV/VIDEO] key and [MENU] key, turn on the power.

[Description]

• In the ordinary menu select “VIDEO ADJUST” with the [CH] key, and decide with the [VOL] key. Then select “PICTURE”, “TINT (only NTSC)”, “COLOR”, “BLACK LEVEL”, “SHARPNESS”, “RED-BLUE”, “GREEN” and “COLOR SYSTEM” with the [CH] key, and decide with the [VOL] key. After that, adjust values with the [VOL] key.

• VOLUME, PICTURE, TINT (only NTSC), COLOR, BLACK LEVEL, SHARPNESS, RED-BLUE, GREEN change as follows.

 (4) Shipping setting mode

[Procedure]

Holding down the [TV/VIDEO] key and [MENU] key, turn on the main power, and simultaneously press the (inspection process) [CH UP] key and [VOL+] key to change the mode to the adjustment mode.

[Description]

User adjustment and other values are taken as defaults.

If TV is indicated as SETTING COMPLETE, setting has been completed.

Cancel of special mode

Turn off the main unit power.

Adjustments and shipping settings list

Troubleshooting table

DISASSEMBLY OF THE SET

1. Remove the five lock screws (1) off the cabinet B.

2. Push on the six hooks (2) of the cabinet B and open it slightly.

3. Disconnect all the connectors (3) from the terminal and operation PWBs. Detach the cabinet B.

4. Disconnect all the connectors (4) from the main PWB.

5. Remove the four lock screws (5) off the main PWB.

6. Peel off the five pieces of tape (6) and detach the LC display unit.

7. Remove the two lock screws (7) off the remote control PWB.

8. Remove the four lock screws (8) off the terminal PWB.

9. Remove the two lock screws (9) off the operation PWB.

10.Remove the two lock screws (10) off the flexible shield, and detach he relay PWB.

11.Remove the lock screw (11) off the LC display unit.

12.Undo the seven hooks (12) to release the unit frame.

13.Detach the fluorescent lamp (13).

FOSTEX MR16HD, FOSTEX MR16HD-CD DIGITAL MULTITRACKER - Service mode, firmware update, service mode adjustments and more

SOFTWARE UPDATE

1) Connect the AC power cable to the AC IN connector.

2) Press the MR16 power switch.

3) Press the [MENU/ENTER] dial to enter the MENU mode.

4) Rotate the [MENU/ENTER] dial and select the “USB” menu.

5) Press the [MENU/ENTER] dial.

6) Rotate the [MENU/ENTER] dial and select the “Disk Protect” menu.

7) Press the [MENU/ENTER] dial and set “Disk Protect” to “Off” by rotating the [MENU/ENTER] dial. Then, press the [MENU/ENTER] dial. With this setting, the Disk Protect mode is turned off indicating the condition that the software update file can be copied to the MR16 internal HDD.

8) Rotate the [MENU/ENTER] dial to select the “< < Back” menu and press the [MENU/ENTER] dial.

9) Rotate the [MENU/ENTER] dial and select the “USB Device Mode” menu.

10) Press the [MENU/ENTER] dial. If MR16 is correctly put into the USB mode, the display on the right will appear on the LCD. Now MR16 is ready to connect to PC or Macintosh.

11) Connect the USB cable from the MR16 USB port to PC on which Windows XP/2000 is running or Macintosh on which OS X is running.

CAUTION: MR16 can be connected to PC on which Windows XP/2000 is running or Macintosh on which OS X is running for software update as well as audio data transfer. Of course PC/Macintosh has to be equipped with a USB port.

12) PC or Macintosh recognizes MR16 as an external removable disk.

Windows XP/2000

The example indicates that MR16 is recognized as a removable disk (E) in the My Computer on Windows XP PC. Unzip the software update file with “zip” extension (e.g. MR16_V102.zip) normally sent together with a technical bulletin. If you do so, a software update file (e.g. MR16V102.MOT) will be created. Place a newly created software update file with “MOT” (motorola format) extension in the root directory tree of the Removable disk (E).

By double-clicking the removable drive (E) (MR16), the window on the right will appear. You can see that the software update file (MR16V102.MOT) is placed in the top directory tree of the Removable Disk (E)

After transferring the software update file is completed, do not tun off the USB connection by pressing the MR16 STOP key. First, you need to safely remove the MR16 from PC side by opening the “Safety Removable Hardware” in the tool bar and pressing the “Stop” button on Windows XP/2000 PC. Then, you can turn off the USB connection from the MR16 side.

Macintosh OS X

MR16 is recognized as “MR16” on the Macintosh OS X desktop. By double-clicking the MR16 icon, the window on the right will appear. There are five song folders and one software update file “MR16V101.MOT”.

Unzip the software update file with “zip” extension (e.g. MR16_V102.zip) normally sent together with a technical bulletin.

Copy and paste a newly created software file with “MOT” (Motorola format) extension (e.g. MR16V102.MOT) onto a root directory of MR16 HDD connected to Macintosh (OS X).

After transferring the software update file is completed, do not turn off the USB connection by pressing the MR16 STOP key. First, as shown on the right, you need to press the EJECT button on Macintosh. Then, you can turn off the USB connection from the MR16 side.

[CAUTION: There is a case that it takes time for PC or Macintosh to recognize MR16 as an external device.  While the “ACC” (access) indication on the upper right of the MR16 LCD is flashing in the USB mode, do not disconnect the USB cable between MR16 and PC / Macintosh.]

13) Disconnect the USB cable between MR16 and PC / Macintosh.

14) On MR16 with the normal display appears, press the [MENU/ENTER] dial while holding down the [STOP] key to access the Service Mode menu.

15) Rotate the [MENU/ENTER] dial and select the “Service Mode” menu.

16) Press the [MENU/ENTER] dial.

17) Rotate the [MENU/ENTER] dial and select the “Version Up” menu.

18) Press the [MENU/ENTER] dial.

19) Rotate the [MENU/ENTER] dial and select a software update file with the version number you would like to update.

NOTE: As long as the file name is different, up to five software update files can be placed in the root directory.

20) Press the [MENU/ENTER] dial.

21) The selected software file is displayed together with the software version number. To go on, press the [MENU/ENTER] dial while holding down the [REC] key.

22) The software updating procedures begin. “File loading...”, “Flash ROM Erasing...” and “Flash ROM Writing...” will appear in order.  It will take about one minute to complete the procedures.

23) Upon completion, “Completed” will appear on the LCD.

24) Turn off the power once and then back on to complete the software update procedures. In the meantime, confirm the software version number and the programming date displayed for a short instance in the boot-up process.

The software version can be checked by the “Version” Service Mode menu. In the condition with normal display appears, press the [MENU/ENTER] dial while holding down the [STOP] key to access the Service Mode menu. If you do so, the display on the right will appear on the LCD. Rotate the [MENU/ENTER] dial to select the “Service Mode” menu and press the [MENU/ENTER] dial.

Select the “Version” menu and press the [MENU/ENTER] dial.  The display on the right will appear on the LCD. It indicates that the programming date is February 5th, 2007, the version number is V1.02 and the CPU revision number is E2. To get back to the normal display, press the [STOP] key.

25) Press the [STOP] key to return to the normal display mode. Then, press the [MENU/ENTER] dial to enter the MENU mode.

26) Rotate the [MENU/ENTER] dial to select the "System" menu and press the [MENU/ENTER] dial.

27) Rotate the [MENU/ENTER] dial and select the “Init Memory” menu.

28) Press the [MENU/ENTER] dial.

29) The display contents on the right appear on the LCD. Press the [MENU/ENTER] dial while holding down the [RECORD] key. This operation will initialize all the system settings to default.

[CAUTION: The “Initialize Memory” operation sets all the system settings to the default values. For example, the “Disk Protect” setting in the USB menu is set to “ON” after initializing the memory. If you would like to update the software in future, please remember that it has to be set to “OFF” again.]

SERVICE MENU

In addition to various MENU modes, SERVICE menus are available to check and maintain the MR16 condition.  Please utilize them when servicing MR16.

Entering Service Menu

Connect the AC cable and power on MR16. After the bootup procedure is completed, the display on the right will appear on the MR16 LCD.

2) Press the [MENU/ENTER] dial while holding down the [STOP] and [POWER] keys. If you do so, "Service Mode" is displayed on the MR16 LCD.

[CAUTION: If the [POWER] key is held down for more than three seconds, MR16 turns off. Please be careful to expedite the above manipulation 2).]

3) Rotate the [MENU/ENTER] dial and select “Service Mode”. Then, press the [MENU/ENTER] dial. You can see that the following service menus will appear on the MR16 LCD.

Select one of the service menus you would like to execute and press the [MENU/ENTER] dial.

Version

In the “Version” service menu, the current MR16 software version as well as the corresponding software programming date can be checked.

After selecting the “Version” menu, press the [MENU/ENTER] dial to check the current software version and the programming date.  The example on the right indicates that the software version is “V1.02” the programming date is February 5th, 2007 and the CPU revision number is E2.

By pressing the STOP key, MR16 returns to the service menu select condition.

Version Up

The “Version Up” service menu allows you to update the MR16 software by placing the software update file in the root directory tree of the MR16 3.5” internal hard disk. For the update procedures, refer to the previous section “3. SOFTWARE UPDATE”

Advanced Format

MR16 checks the remaining capacity / partition information written on the internal HD in the bootup process after powering on. In case this information does not match the current HD condition, the “Advanced Format” service menu can be used. For example, even if no song has been created (recorded) but the remaining capacity indicates only 10MB, execute the “Advanced Format” menu.

As indicated on the right, please remember that executing the “Advanced Format” deletes all the songs recorded on the internal HD.

Upon completion of “Advanced Format”, the message “Boot Sector Clear” appears on the LCD.

[NOTE: In case MR16 is not booted up correctly and displays an alert message such as “Please Wait!” permanently, power if off once.  Then, while holding down the [STOP] key, power on MR16.  This mode allows to boot up without loading any recorded songs. Next, execute the “Advanced Format” menu.]

CD-RW Disk Erase

Executing the “Disk Erase” service menu erases all existing song data on the CD-RW disk put into the MR16HD/CD internal CD-R/RW drive.

1) Rotate the [MENU/ENTER] dial and select “CD-RW”. Then, press the [MENU/ENTER] dial.

2) Rotate the [MENU/ENTER] dial and select “Disk Erase”. Then, press the [MENU/ENTER] dial.

3) To go on, press the [MENU/ENTER] dial while holding down the [REC] key.

4) The CD-RW disk erasing procedures begin. “Erasing...” will appear . It will take about one minute to complete the procedures.

5) Upon completion, “Completed!” will appear on the LCD.

Display Test

This menu checks if the EFFECT SEND / PAN / REVERB/DELAY pots & faders / self-illuminating tact switches are working properly.

After selecting the “Display Test” menu, press the [MENU/ENTER] dial.

2) Press the [MENU/ENTER] dial again. If you do so, the display  below will appear on the MR16 LCD.

As shown in the drawing below, each value the EFFECT SEND / PAN / TO STEREO BUSS LEVEL / REVERB/DELAY pots & faders position. Rotate the EFFECT SEND / PAN pots and move the faders to check if the value changes from "0" to "F" in hexadecimal depending on the pots / fades position as follow.

3) After checking, press the [MENU/ENTER] dial to proceed the next Display Test. The next test is to check if the self-illuminating tact switches are lit in red.

Check if the self-illuminating tact switches are properly lit in red as indicated in the drawing below.

4) After checking, press the [MENU/ENTER] dial to proceed the next Display Test. The next test is to check if the self-illuminating tact switches are lit in green.

Check if the self-illuminating tact switches are properly lit in green as indicated in the drawing below.

5) After checking, press the [MENU/ENTER] dial to proceed the next Display Test. The next test is to check if the self-illuminating tact switches are lit in umber.

Check if the self-illuminating tact switches are properly lit in orange as indicated in the drawing below.

6) After checking, press the [MENU/ENTER] dial to proceed the next Display Test. The next test is to check if the tact switches on the MR16 top panel except the POWER SW is in good contact. If the tact switch is pressed, the corresponding asterisk mark on the MR16 LCD will go out. If not, the tact switch might be worn out and be replaced.  After all the tact switches are confirmed to be in good contact, the display on the right will appear on the MR16 LCD.

Bus Check

This menu checks if various bus signals connected to the CPU are correctly working or not.

1) After selecting the “Bus Check” menu, connect the foot SW to the foot SW jack and the USB cable between the USB and USB HOST ports.

2) Press the [MENU/ENTER] dial to initiate the Bus Check mode.

AUDIO BUS

The AUDIO BUS setting is fixed at “THRU” in this menu. In the “THRU” setting, the A/D and D/A converters are internally connected. Also the CHAN A/C and B/D PAN setting are set to left and right respectively. Thus, the signals fed to CHAN A and C are summed and output from the STEREO OUT L and the signal fed to CHAN B and D are summed and output from the STEREO OUT R.  This mode is convenient when checking the input circuit.

ATA BUS

The “OK” sign indicates that the ATA bus communication between the internal HD and the CPU is properly made. If the “NG” sign appears, something must be wrong with the ATA bus communication.

INPUT SEL

The “INPUT SEL” indicates the number corresponding to the INPUT A SELECT switch setting as follow.

GTR CLEAR: 2

GTR DISTORTION: 1

MIC/LINE: 3

FOOT SW

When an unlatched type foot switch is connected and it is pressed, the “ON” indication will appear. If the foot switch is released or is not connected, the “OFF” sign will appear.

USB BUS

If the “USB BUS” section indicates the “OK” sign 3 ~ 5 seconds after the “WAIT..” sign is displayed, the USB HOST function works properly. If the “NG” sign is displayed, press the [MENU/ENTER] dial and then try to enter the Bus Check mode again by pressing the [MENU/ENTER] dial.ATAPI BUS

The “OK” sign indicates that the ATAPI bus communication between the CD-R/RW drive and the CPU is properly made. If the “NG” sign appears, something must be wrong with the ATAPI bus communication.

 Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation.  It is easy to do, and is a good service precaution.

It should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.

The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number.

By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with.  If the third digit of the serial number contains the number “1” (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a “2” (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. This is important for ordering the correct spare parts. For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit of the serial number.

Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g. AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2006 week 17). The 6 last digits contain the serial number.

Board Level Repair (BLR) or Component Level Repair (CLR)

If a board is defective, consult your repair procedure to decide if the board has to be exchanged or if it should be repaired on component level.

If your repair procedure says the board should be exchanged completely, do not solder on the defective board. Otherwise, it cannot be returned to the O.E.M. supplier for back charging.

In the chassis schematics and layout overviews, the test points (Fxxx) are mentioned. In the schematics, test points are indicated with a rectangular box around “Fxxx” or “Ixxx”, in the layout overviews with a “half-moon” sign.

As most signals are digital, it will be difficult to measure waveforms with a standard oscilloscope. Several key ICs are capable of generating test patterns, which can be controlled via ComPair. In this way it is possible to determine which part is defective.

Perform measurements under the following conditions:

• Service Default Mode.

• Video: Colour bar signal.

• Audio: 3 kHz left, 1 kHz right.

The Service Mode feature is split into four parts:

• Service Default Mode (SDM).

• Service Alignment Mode (SAM).

• Customer Service Mode (CSM).

• Digital Customer Service Mode (DCSM).

• Computer Aided Repair Mode (ComPair).

SDM and SAM offer features, which can be used by the Service engineer to repair/align a TV set. Some features are:

• A pre-defined situation to ensure measurements can be made under uniform conditions (SDM).

• Activates the blinking LED procedure for error identification when no picture is available (SDM).

• The possibility to overrule software protections when SDM was entered via the Service pins.

• Make alignments (e.g. white tone), (de)select options, enter options codes, reset the error buffer (SAM).

• Display information (“SDM” or “SAM” indication in upper right corner of screen, error buffer, software version, operating hours, options and option codes, sub menus).

The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen.  The information provided in CSM and the purpose of CSM is to:

• Increase the home repair hit rate.

• Decrease the number of nuisance calls.

• Solved customers' problem without home visit.

ComPair Mode is used for communication between a computer and a TV on I2C /UART level and can be used by a Service engineer to quickly diagnose the TV set by reading out error codes, read and write in NVMs, communicate with ICs and the uP (PWM, registers, etc.), and by making use of a fault finding database. It will also be possible to up and download the software of the TV set via I2C with help of ComPair. To do this, ComPair has to be connected to the TV set via the compare connector, which will be accessible through the rear of the set (without removing the rear cover).

Some items are applicable to all Service Modes or are general. These are listed below.

Life Timer

During the life time cycle of the TV set, a timer is kept. It counts the normal operation hours (not the Stand-by hours). The actual value of the timer is displayed in SDM and CSM in a decimal value. Every two soft-resets increase the hour by +1.

Software Identification, Version, and Cluster

The software ID, version, and cluster will be shown in the main menu display of SDM, SAM, and CSM.  The screen will show: “AAAABCD X.YY”, where:

• AAAA is the chassis name: LC82.

• B is the region indication: E= Europe, A= AP/China, U=NAFTA, L= LATAM.

• C is the display indication: L= LCD, P= Plasma.

• D is the language/feature indication: 1= standard, H=1080p full HD.

• X is the main version number: this is updated with a major change of specification (incompatible with the previous software version). Numbering will go from 1 - 9 and A - Z.

– If the main version number changes, the new version number is written in the NVM.

– If the main version number changes, the default settings are loaded.

• YY is the sub version number: this is updated with a minor change (backwards compatible with the previous versions) Numbering will go from 00 - 99.

– If the sub version number changes, the new version number is written in the NVM.

– If the NVM is fresh, the software identification, version, and cluster will be written to NVM.

Display Option Code Selection

When after an SSB or display exchange, the display option code is not set properly, it will result in a TV with “no display”.  Therefore, it is required to set this display option code after  such a repair.

To do so, press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type: see column “Display code” in table “Option code overview” (ch. 8), or see sticker on the side/bottom of the cabinet. When the value is accepted and stored in NVM, the set will switch to Stand-by, to indicate that the process has been completed.

During this algorithm, the NVM-content must be filtered, because several items in the NVM are TV-related and not SSB related (e.g. Model and Prod. S/N). Therefore, “Model” and “Prod. S/N” data is changed into “See Type Plate”. In case a call centre or consumer reads “See Type Plate” in CSM mode, he needs to look to the side/bottom sticker to identify the set, for further actions.

Service Default Mode (SDM)

Set the TV in SDM mode in order to be able to:

• Create a pre-defined setting for measurements to be made.

• Override software protections.

• Start the blinking LED procedure.

• Read the error buffer.

• Check the life timer.

SDM default settings

• Set linear video and audio settings to 50%, but volume to 25%. Stored user settings are not affected.

• All service-unfriendly modes (if present) are disabled, since they interfere with diagnosing/repairing a set. These service unfriendly modes are:

– (Sleep) timer.

– Blue mute/Wall paper.

– Auto switch “off” (when there is no “ident” signal).

– Hotel or hospital mode.

– Child lock or parental lock (manual or via V-chip).

– Skipping, blanking of “Not favourite”, “Skipped” or “Locked” presets/channels.

– Automatic storing of Personal Preset or Last Status settings.

– Automatic user menu time-out (menu switches back/OFF automatically.

– Auto Volume levelling (AVL).

How to Activate

To activate SDM, use one of the following methods:

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the MENU button (do not allow the display to time out between entries while keying the sequence).

• Short one of the “Service” jumpers on the TV board during cold start (see Figures “Service jumper”). Then press the mains button (remove the short after start-up).

Caution: Activating SDM by shorting “Service” jumpers will override the DC speaker protection (error 1), the General I2C error (error 4), and the Trident video processor error (error 5). When doing this, the service-technician must know exactly what he is doing, as it could damage the television set.

Service jumper position

On Screen Menu

After activating SDM, the following screen is visible, with SDM in the upper right corner of the screen to indicate that the television is in Service Default Mode.

Menu explanation:

• HHHHH: Are the operating hours (in decimal).

• AAAABCD-X.YY: See paragraph “Service Modes” ->“General” -> “Software Identification, Version, and Cluster” for the SW name definition.

• SDM: The character “SDM” to indicate that the TV set is in Service mode.

• ERR: Shows all errors detected since the last time the buffer was erased. Five errors possible.

• OP: Used to read-out the option bytes. See “Options” in the Alignments section for a detailed description. Seven codes are possible.

How to Navigate

As this mode is read only, there is not much to navigate. To switch to other modes, use one of the following methods:

• Command MENU from the user remote will enter the normal user menu (brightness, contrast, colour, etc...) with “SDM” OSD remaining, and pressing MENU key again will return to the last status of SDM again.

• To prevent the OSD from interfering with measurements in SDM, command “OSD” (“STATUS” for NAFTA and LATAM) from the user remote will toggle the OSD “on/off” with “SDM” OSD remaining always “on”.

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the OSD/STATUS/INFO/i+ button to switch to SAM (do not allow the display to time out between entries while keying the sequence).

How to Exit

Switch the set to STANDBY by pressing the mains button on the remote control transmitter or on the television set.

If you switch the television set “off” by removing the mains (i.e., unplugging the television), the television set will remain in SDM when mains is re-applied, and the error buffer is not cleared.

The error buffer will only be cleared when the “clear” command is used in the SAM menu.

Note:

• If the TV is switched “off” by a power interrupt while in SDM, the TV will show up in the last status of SDM menu as soon as the power is supplied again. The error buffer will not be cleared.

• In case the set is in Factory mode by accident (with “F” displayed on screen), by pressing and hold “VOL-” and “CH-” together should leave Factory mode.

Service Alignment Mode (SAM)

Purpose

• To change option settings.

• To display / clear the error code buffer.

• To perform alignments.

Specifications

• Operation hours counter (maximum five digits displayed).

• Software version, error codes, and option settings display.

• Error buffer clearing.

• Option settings.

• Software alignments (Tuner, White Tone, and Audio).

• NVM Editor.

• ComPair Mode switching.

• Set the screen mode to full screen (all contents on screen are viewable).

How to Activate

To activate SAM, use one of the following methods:

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the OSD/STATUS/INFO/i+ button (it depends on region which button is present on the RC). Do not allow the display to time out between entries while keying the sequence.

• Or via ComPair.

After entering SAM, the following screen is visible, with SAM in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.

Menu explanation:

1. LLLLL. This represents the run timer. The run timer counts normal operation hours, but does not count Stand-by hours.

2. AAAABCD-X.YY. See paragraph “Service Modes” ->“General” -> “Software Identification, Version, and Cluster” for the SW name definition.

3. SAM. Indication of the Service Alignment Mode.

4. ERR (ERRor buffer). Shows all errors detected since the last time the buffer was erased. Five errors possible.

5. OP (Option Bytes). Used to read-out the option bytes. See “Options” in the Alignments section for a detailed description. Seven codes are possible.

6. Clear. Erases the contents of the error buffer. Select the CLEAR menu item and press the MENU RIGHT key. The content of the error buffer is cleared.

7. Options. Used to set the option bits. See “Options” in the “Alignments” chapter for a detailed description.

8. Tuner. Used to align the tuner. See “Tuner” in the “Alignments” chapter for a detailed description.

9. RGB Align. Used to align the White Tone. See “White Tone” in the “Alignments” chapter for a detailed description.

10. NVM Editor. Can be used to change the NVM data in the television set. See also paragraph “Fault Finding and Repair Tips” further on.

11. ComPaIr. Can be used to switch the television to “In Application Programming” mode (IAP), for software uploading via ComPair. Read paragraph “Service Tools” - > “ComPair”.

Caution: When this mode is selected without compare connected, the TV will be blocked. Remove the AC power to reset the TV.

12. SW Events. Only to be used by development to monitor SW behaviour during stress test.

How to Navigate

• In the SAM menu, select menu items with the MENU UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the MENU UP/DOWN keys to display the next / previous menu items.

• With the MENU LEFT/RIGHT keys, it is possible to:

– Activate the selected menu item.

– Change the value of the selected menu item.

– Activate the selected sub menu.

• When you press the MENU button twice while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background). To return to the SAM menu press the MENU button.

• Command OSD/STATUS/INFO/i+ button from the user remote will toggle the OSD “on/off” with “SAM” OSD remaining always “on”.

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the MENU button to switch to SDM (do not allow the display to time out between entries while keying the sequence).

How to Store SAM Settings

To store the settings changed in SAM mode (except the OPTIONS settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set.

How to Exit

Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set.

Note:

• When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

• In case the set is in Factory mode by accident (with “F” displayed on screen), by pressing and hold “VOL-” and “CH-” together should leave Factory mode.

Customer Service Mode (CSM)

The Customer Service Mode shows error codes and information on the TV’s operation settings. A call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps them to diagnose problems and failures in the TV before making a service call.  The CSM is a read-only mode; therefore, modifications are not possible in this mode.

Specifications

• Ignore “Service unfriendly modes”.

• Line number for every line (to make CSM language independent).

• Set the screen mode to full screen (all contents on screen are viewable).

• After leaving the Customer Service Mode, the original settings are restored.

• Possibility to use “CH+” or “CH-” for channel surfing, or enter the specific channel number on the RC.

How to Activate

To activate CSM, press the following key sequence on the remote control transmitter: “123654” (do not allow the display to time out between entries while keying the sequence).

Upon entering the Customer Service Mode, the following screen will appear:

Menu Explanation

1. MODEL. Type number, e.g. 32PFL7762D/05. (*)

2. PROD S/N. Product serial no., e.g. AG1A0712123456. (*)

3. SW ID. Software cluster and version is displayed.

4. OP. Option code information.

5. CODES. Error buffer contents.

6. SSB. Indication of the SSB factory ID (= 12nc). (*)

7. NVM. The NVM software version no.

8. Flash Data. PQ (picture quality) and AQ (audio quality) data version. This is a sub set of the main SW.

9. DISPLAY. Indication of the display ID (=12 nc).

10. TUNER. Indicates the tuner signal condition: “Weak” when signal falls below threshold value, “Medium” when signal is at mid-range, and “Strong” when signal falls above threshold value.

11. SYSTEM. Gives information about the video system of the selected transmitter (PAL/SECAM/NTSC).

12. SOUND. Gives information about the audio system of the selected transmitter (MONO/STEREO/NICAM).

13. HDAU. HDMI audio stream detection. “YES” means audio stream detected. “NO” means no audio stream present.  Only displayed when HDMI source is selected.

14. FORMAT. Gives information about the video format of the selected transmitter (480i/480p/720p/1080i).

15. DFR SW ID. Referring to bolt-on SW ID.

16. FPGA FW. Only applicable to sets with an FPGA.

17. Reserved.

18. Reserved.

If an NVM IC is replaced or initialised, the Model Number, Serial Number, and SSB Code Number must be re-written to the NVM. ComPair will foresee in a possibility to do this.

How to Exit

To exit CSM, use one of the following methods:

• Press the MENU button twice, or POWER button on the remote control transmitter.

• Press the POWER button on the television set.

Digital Customer Service Mode (DCSM)

This section only applies to sets where the Digital bolt-on Module is mounted (China: CTNs ending with “D/93”).

Purpose

The Digital Customer Service Mode shows how the Digital Module performs.

How to Activate

To activate DCSM:

1. Put the set in “digital mode”.

2. Press “digital MENU” key on RC.

3. Press “123654” key sequence on RC (do not allow the display to time out between entries while keying the sequence).

How to Exit

To exit DCSM, press “digital MENU” key on RC.

Error Codes

Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every:

• Activated protection.

• Failing I2C device.

• General I2C error.

• SDRAM failure.

The last errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer.

The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.

An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left.

An error with a designated error code may never lead to a deadlock situation. This means that it must always be diagnosable (e.g. error buffer via OSD or blinking LED procedure, ComPair to read from the NVM).

In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed.

Example: In case of a failure of the I2C bus (CAUSE), the error code for a “General I2C failure” and “Protection errors” is displayed. The error codes for the single devices (EFFECT) is not displayed. All error codes are stored in the same error buffer (TV’s NVM) except when the NVM itself is defective.

How to Read the Error Buffer

You can read the error buffer in 3 ways:

• On screen via the SAM/SDM/CSM (if you have a picture).

Example:

– ERROR: 0 0 0 0 0: No errors detected

– ERROR: 6 0 0 0 0: Error code 6 is the last and only detected error

– ERROR: 9 6 0 0 0: Error code 6 was detected first and error code 9 is the last detected (newest) error

• Via the blinking LED procedure (when you have no picture). See “The Blinking LED Procedure”.

• Via ComPair.

Error Codes

In case of non-intermittent faults, write down the errors present in the error buffer and clear the error buffer before you begin the repair. This ensures that old error codes are no longer present.

If possible, check the entire contents of the error buffer. In some situations, an error code is only the result of another error and not the actual cause of the problem (for example, a fault in the protection detection circuitry can also lead to a protection).

1. Some of the error codes reported are depending on the option code configurations.

2. This error means: no I2C device is responding to the particular I2C bus. Possible causes: SCL/SDA shorted to GND, SCL shorted to SDA, or SCL/SDA open (at uP pin).

The internal bus of the Trident platform should not cause the entire system to halt as such an error can be reported.

How to Clear the Error Buffer

The error code buffer is cleared in the following cases:

• By using the CLEAR command in the SAM menu:

– To enter SAM, press the following key sequence on the remote control transmitter: “062596” directly followed by the OSD/STATUS/INFO/i+ button (do not allow the display to time out between entries while keying the sequence).

– Make sure the menu item CLEAR is selected. Use the MENU UP/DOWN buttons, if necessary.

– Press the MENU RIGHT button to clear the error buffer. The text on the right side of the “CLEAR” line will change from “CLEAR?” to “CLEARED”

• If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically.

Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset.

The Blinking LED Procedure

The software is capable of identifying different kinds of errors. Because it is possible that more than one error can occur over time, an error buffer is available, which is capable of storing the last five errors that occurred. This is useful if the OSD is not working properly.

Errors can also be displayed by the blinking LED procedure.

The method is to repeatedly let the front LED pulse with as many pulses as the error code number, followed by a period of 1.5 seconds in which the LED is “off”. Then this sequence is repeated.

Example (1): error code 4 will result in four times the sequence LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After this sequence, the LED will be “off” for 1.5 seconds. Any RC5 command terminates the sequence. Error code LED blinking is in red colour.

Example (2): the content of the error buffer is “1 2 9 6 0 0”

After entering SDM, the following occurs:

• 1 long blinks of 5 seconds to start the sequence,

• 12 short blinks followed by a pause of 1.5 seconds,

• 9 short blinks followed by a pause of 1.5 seconds,

• 6 short blinks followed by a pause of 1.5 seconds,

• 1 long blink of 1.5 seconds to finish the sequence,

• The sequence starts again with 12 short blinks.

Displaying the Entire Error Buffer

Additionally, the entire error buffer is displayed when Service Mode “SDM” is entered. In case the TV set is in protection or Stand-by: The blinking LED procedure sequence (as in SDMmode in normal operation) must be triggered by the following RC sequence: “MUTE” “062500” “OK”.  In order to avoid confusion with RC5 signal reception blinking, this blinking procedure is terminated when a RC5 command is received.

To erase the error buffer, the RC command “MUTE” “062599 “OK” can be used.

Power supply circuit diagram

Software Upgrading

In this chassis, the following SW “stacks” are used:

TV main SW (processor and processor NVM).

MT8280 software (sets where the DFI panel has been replaced by on-board MT8280).

Digital Module software; only applies to sets where the Digital bolt-on Module is mounted (China: CTNs ending with “D/93”, Hong Kong: CTNs ending with “D/30”).

TV Main SW Upgrade

For instructions on how to upgrade the TV Main software, refer to ComPair.

MT8280 SW Upgrade

This paragraph only applies to sets where the DFI panel has been replaced by the on-board MT8280. The software for the MT8280 has to be flashed via a separate cable and -connector. See paragraph “Service Tools > ComPair” for the correct order number of this cable. For the location of the connector on the SSB.  Before the cable can be connected, a hatch in the back cover has to be removed (no need to remove the entire back cover).

Digital Module SW Upgrade

Performing Digital Software upgrade via the USB port It is recommended that only qualified Service personnel perform this task. As any interruption occurs during the software upgrade process, the Digital Module will be malfunctioning. Then a special fixture is needed to recover the Digital Module. To perform this operation, the following needs to be prepared:

• A USB stick (preferable from a well-known brand).

• The software must be downloaded from the service website.

• The software should be stored in the root directory of the USB stick.

The digital module has it’s own USB port. This USB port is covered by a protective tape. Remove the tape for the USB software upgrade and should be covered back when the job is done. The following steps should be performed for upgrading the set:

• Put the set in digital mode.

• Using the remote control, select the digital user menu.

• Scroll to the “Information” item as shown in figure “Information menu”.

Information menu

Select “New Software” item as shown in figure “New Software menu”.

New Software menu

• Select “USB available” item as shown in figure “New Software menu”.

USB available menu

Select “the software for the update and confirm as shown in figure “Update menu”.

Update menu

The update progress is shown as in figure “Software upgrade Application menu”.

Software upgrade Application menu

When software flashing is completed, the TV will go into a black screen.

Wait until the “No Channel Available (TV)”below screen reappear to indicate successful completion of SW flashing as shown in figure “No Channel Available (TV)”.

No Channel Available (TV)

Digital Customer Service Mode

This mode gives an overview of how these performs under various digital signal sources.:

How to activate

• Put the set in digital mode

• Press the Digital Menu button on the remote control

• Press the key sequence “1 2 3 6 5 4”.

The following figures show the self-explanatory Digital Customer Service Mode screens.

Fault Finding and Repair Tips

Notes:

• It is assumed that the components are mounted correctly with correct values and no bad solder joints.

• Before any fault finding actions, check if the correct options are set.

NVM Editor

In some cases, it can be convenient if one directly can change the NVM contents. This can be done with the “NVM Editor” in SAM mode. With this option, single bytes can be changed.

Caution:

• Do not change the NVM settings without understanding the function of each setting, because incorrect NVM settings may seriously hamper the correct functioning of the TV set.

• Always write down the existing NVM settings, before changing the settings. This will enable you to return to the original settings, if the new settings turn out to be incorrect.

NVM editor overview

Load Default NVM Values

It is possible to download default values automatically into the NVM in case a blank NVM is placed or when the NVM first 20 address contents are “FF”. After the default values are downloaded, it is possible to start-up and to start aligning the TV set. To initiate a forced default download the following action has to be performed:

1. Switch “off” the TV set with the mains cord disconnected from the wall outlet (it does not matter if this is from “Stand-by” or “Off” situation).

2. Short-circuit the SDM jumpers on the SSB (keep short circuited).

3. Press “P+” or “CH+” on the local keyboard (and keep it pressed).

4. Reconnect the mains supply to the wall outlet.

5. Release the “P+” or “CH+” when the set is “on” or blue LED is blinking.

When the downloading has completed successfully, the set should be into Stand-by, i.e. red LED on.

Alternative method (1):

1. Go to SAM.

2. Select NVM Editor.

3. Select ADR (address) to 1 (dec).

4. Change the VAL (value) to 170 (dec).

5. Store the value.

6. Do a hard reset to make sure new default values took place.

Alternative method (2):

It is also possible to upload the default values to the NVM with ComPair in case the SW is changed, the NVM is replaced with a new (empty) one, or when the NVM content is corrupted.

After replacing an EEPROM (or with a defective/no EEPROM), default settings should be used to enable the set to start-up and allow the Service Default Mode and Service Alignment Mode to be accessed.

Start-up/Shut-down Flowcharts

On the next pages you will find start-up and shut-down flowcharts, followed by a troubleshooting flowchart, which might be helpful during fault finding.

Please note that some events are only related to PDP sets, and therefore not applicable to this LCD chassis.

Start-up shutdown flowchart

Stand-by / Tact Switch Stand-by flowchart & Power down & DC-PROT flowchart

Troubleshooting flowchart

Wiring Diagram 47" 50Hz (ME8): WIRING DIAGRAM 47” 50Hz

Wiring Diagram 42" 100Hz (ME8)

Wiring Diagram 32" 50Hz (ME8)

Wiring Diagram 52" 50Hz (ME8)

Wiring Diagram 52" 100Hz (ME8)

11AK19 is a 90 and 110 chassis capable of driving 20, 21,24,25,28,29,32,33 inch  tubes at appropriate currents.

The chassis is capable of working in both PAL and SECAM. The sound system is capable of giving 6watts RMS output into a load of 8ohms.

One 8 page simple TELETEXT, TOPTEXT and FASTEXT is provided.

The chassis is equipped with 21-pin scart connectors which can accept via scart the SVHS format from VCRs so equipped.

SMALL SIGNAL PART WITH TDA884X

The TDA8840/8842/8844 combine all small signal functions required for a colour TV receiver, except tuning.

 Vision IF amplifier

The IF-amplifier contains 3 AC-coupled control stages with a total gain control range which is higher than 66dB.

The sensitivity of the circuit is comparable with that of modern IF-IC’ s. The video signal is demodulated by means of a PLL carrier regenerator. This circuit contains a frequency detector and a phase detector. The AFC output is obtained by using the VCO control voltage of the PLL and can be read via the I2C-bus. For fast search tuning systems the window of the AFC can be increased with a factor 3. The setting is realised with the AFW bit.

Depending on the type the AGC-detector operates on top-sync level (single standard versions) or on top sync and top white-level (multi standard versions). The demodulation polarity is switched via the I2C-bus. The AGC detector time-constant capacitor is connected externally. This mainly because of the flexibility of the application. The time-constant of the AGC system during positive modulation is rather long to avoid visible variations of the signal amplitude. To improve the speed of the AGC system a circuit has been included which detects whether the AGC detector is activated every frame period. When during 3 frame periods no action is detected the speed of the system is increased. For signals without peak white information the system switches automatically to a gated black level AGC. Because a black level clamp pulse is required for this way of operation the circuit will only switch to black level AGC in the internal mode.

The circuits contain a video identification circuit which is independent of the synchronisation circuit. Therefore search tuning is possible when the display section of the receiver is used as a monitor. The ident output is supplied to the tuning system via the I2C-bus. The video ident circuit can be made less sensitive by means of the STM bit. This mode can be used during search tuning to avoid that the tuning system will stop at very weak input signals.

Video Switches

The circuits have two CVBS inputs (internal and external CVBS) and Y/C input. When the Y/C input is not required the Y input can be used as third CVBS input. The selection of the various sources is made via the I†C-bus. The circuit has one CVBS output.

Sound Circuit

The sound band pass and trap filters have to be connected externally. The filtered intercarrier signal is fed to a limiter circuit and is demodulated by means of a PLL demodulator. This PLL circuit tunes itself automatically to the incoming carrier signal so that no adjustment is required.

The volume is controlled via the I2C-bus. The de-emphasis capacitor has to be connected externally. The non-controlled audio signal can be obtained from this pin. The FM demodulator can be muted via the I2C-bus. This function can be used to switch-off the sound during a channel change so that high output peaks are prevented. The TDA8840/8842 contain an automatic volume levelling (AVL) circuit which automatically stabilises the audio output signal to a certain level which can be set by the viewer by means of the volume control. This function prevents big audio output fluctuations due to variations of the modulation depth of the transmitter.  The AVL function can be activated via the I2C-bus.

Synchronisation circuit

The sync separator is preceded by a controlled amplifier which adjusts the sync pulse amplitude to a fixed level. These pulses are fed to the slicing stage which is operating at 50% of the amplitude. The separated sync pulses are fed to the first phase detector and to the coincidence detector. This coincidence detector is used to detect whether the line oscillator is synchronised and can also be used for transmitter identification. The first PLL has a very high statical steepness so that the phase of the picture is independent of the line frequency.

The horizontal output signal is generated by means of an oscillator which is running at twice the line frequency. Its frequency is divided by 2 to lock the first control loop to the incoming signal. The time-constant of the loop can be forced by the I†C-bus (fast or slow).

If required the IC can select the time-constant depending on the noise content of the incoming video signal.

To protect the horizontal output transistor, the horizontal drive is immediately switched off when a power-on-reset is detected.

The drive signal is switched-on again when the normal switch-on procedure is followed.

Via the I2C-bus, adjustments can be made of the horizontal and vertical geometry. The vertical saw tooth generator drives the vertical output drive circuit which has a differential output current. For the EW drive a single ended current output is available.

When the horizontal scan is reduced to display 4 : 3 pictures on a 16 : 9 picture tube an accurate video blanking can be switched on to obtain well defined edges on the screen.

Overvoltage conditions can be detected via the EHT tracking pin. When an overvoltage condition is detected the horizontal output drive signal will be switched-off via the slow stop procedure but it is also possible that the drive is not switched-off and that just a protection indication is given in the IC-bus output byte. The choice is made via the input bit PRD.

 Chroma and Luminance processing

The circuits contain a Chroma band pass and trap circuit. The filters are realised by means of gyrator circuits and they are automatically calibrated by comparing the tuning frequency with the X-tal frequency of the decoder.

The luminance delay line and the delay for the peaking circuit are also realised by means of gyrator circuits.

The centre frequency of the Chroma band pass filter is switchable via the I†C-bus so that the performance can be optimised for “front-end” signals and external CVBS signals.

During SECAM reception the centre frequency of the Chroma trap is reduced to get a better suppression of the SECAM carrier frequencies.

Colour Decoder

The decoder contains an alignment-free X-tal oscillator, a killer circuit and two colour difference demodulators. The 90° phase shift for the reference signal is made internally.

The IC contains an automatic colour limiting (ACL) circuit which prevents that oversaturation occurs when signals with a high Chroma-to-burst ratio are received. The ACL circuit is designed such that it only reduces the chroma signal and not the burst signal.  This has the advantage that the colour sensitivity is not affected by this function.  The base-band delay line is integrated in the PAL/SECAM IC’ s.

The demodulated colour difference signals are internally supplied to the delay line. The matrixed signals are externally available.  The colour difference matrix switches automatically between PAL/SECAM and NTSC, however, it is also possible to fix the matrix in the PAL standard.

Which colour standard the IC can decode depends on the external X-tals. The X-tal to be connected to pin 34 must have a frequency of 3.5 MHz (NTSC-M, PAL-M or PAL-N) and pin 35 can handle X-tals with a frequency of 4.4 and 3.5 MHz. To prevent calibration problems of the horizontal oscillator the external switching between the 2 X-tals should be carried out when the oscillator is forced to pin 35. For a reliable calibration of the horizontal oscillator it is very important that the X-tal indication bits (XA and XB) are not corrupted. For this reason the X-tal bits can be read in the output bytes so that the software can check the I†C-bus transmission.

RGB output circuit and black-current stabilisation

The colour-difference signals are matrixed with the luminance signal to obtain the RGB-signals. The TDA 884X device has one linear RGB input. This RGB signal can be controlled on contrast and brightness.

The output signal has amplitude of about 2 volts black-to-white at nominal input signals and nominal settings of the controls.

To increase the flexibility of the IC it is possible to insert OSD and/or teletext signals directly at the RGB outputs.

This insertion mode is controlled via the insertion input (pin 26 in the S-DIP 56- and pin 38 in the QFP-64 level). This blanking action at the RGB outputs has some delay which must be compensated externally.

To obtain an accurate biasing of the picture tube a Continuous Cathode Calibration circuit has been developed.

This function is realised by means of a 2-point black level stabilisation circuit.

When the TV receiver is switched-on, the RGB output signals are blanked and the black current loop will try to set the right picture tube bias levels. Via the AST bit a choice can be made between automatic start-up or a start-up via the m-processor.

VIDEO SWITCH TEA6415C

In case of three or more external sources are used, the video switch IC TEA6415C is used. The main function of this device is to switch 8 video input sources on the 6 outputs.

Each output can be switched on only one of each input. On each input an alignment of the lowest level of the signal is made (bottom of sync. top for CVBS or black level for RGB signals).

Each nominal gain between any input and output is 6.5dB.For D2MAC or Chroma signal the alignment is switched off by forcing, with an external resistor bridge, 5VDC on the input. Each input can be used as a normal input or as a MAC or Chroma input (with external resistor bridge). All the switching possibilities are changed through the BUS.

Driving 75ohm load needs an external resistor.  It is possible to have the same input connected to several outputs.

AM DEMODULATOR TDA9830

The TDA9830 is designed for AM-sound demodulation used in L and L’ standard.

Sound IF Input:

The sound IF amplifier consists of three AC-coupled differential amplifier stages each with approximately 20dB gain.

At the output of each stage is a multiplier for gain controlling. The overall control range is approximately -6 to +60dB and the frequency response (-3dB) of the IF amplifier is approximately 6 to 70MHz. The steepness of gain control is approximately 10mV/dB.

IF AGC:

The automatic gain control voltage to maintain the AM demodulator output signal at a constant level is generated by a mean level detector.The AGC-detector charges and discharges the capacitor at pin 3 controlled by the output signal of the AM-demodulator compared to an internal reference voltage. The maximum charge/discharge current is approximately 5 mA.

AM-demodulator

The IF amplifier output signal is fed to a limiting amplifier (two stages) and to a multiplier circuit.

However the limiter output signal (which is not any more AM modulated) is also fed to the multiplier, which provides AM demodulation (in phase demodulation). After lowpass filtering (fg @ 400kHz) for carrier rejection and buffering, the demodulator output signal is present at pin 6.

Audio Switch

This circuit is an operational amplifier with three input stages and internal feedback network determining gain (0dB) and frequency response (fg @ 700kHz). Two of the input stages are connected to pin 7 and pin 9, the third input stage to an internal reference voltage. Controlled by the switching pins 10 and 12, one of the three input stages can be activated and a choice made between two different AF signals or mute state. The selected signal is present at pin 8. The decoupling capacitors at the input pins are needed, because the internally generated bias voltage for the input stages must not be influenced by the application in order to avoid DC-plop in case of switching.

Reference Circuit:

This circuit is a band gap stabiliser in combination with a voltage regulation amplifier, which provides an internal reference voltage of about 3.6V nearly independent from supply voltage and temperature. This reference voltage is filtered by the capacitor at pin 4 in order to reduce noise. It is used as a reference to generate all important voltages and currents of the circuit.  For application in 12V power supply concepts, there is an internal voltage divider in combination with a Darlington transistor in order to reduce the supply voltage for all IC function blocks to approximately 6V.

DIGITAL TV SOUND PROCESSOR TDA9875

The TDA9875 is a single-chip Digital TV Sound Processor.  Supported standards are M, B/G, D/K, I and L.

Description of the demodulator and decoder section:

SIF Input:

Two input pins are provided, SIF1 e.g. for terrestrial TV and SIF2 e.g. for a satellite tuner. The selected signal is passed through an AGC circuit and then digitized by an 8-bit ADC operating at 24.576MHz.

AGC:

The gain of the AGC amplifier is controlled from the ADC output by means of a digital control loop employing hysteresis.  The AGC has a fast attack behaviour to prevent ADC overloads and slow decay behaviour AGC oscillations.  For AM demodulation AGC must be switched off.

Mixer

The digitized input signal is fed to the mixers, which mix one or both input sound carriers down to zero IF. A 24-bit control word for each carrier sets the required frequency.

FM and AM Demodulation

An FM or AM input signal is fed via a band-limiting filter to a demodulator that can be used for either FM or AM demodulation.  Apart from the standard (fixed) de-emphasis characteristic, an adaptive de-emphasis is available for encoded satellite programs.  A stereo decoder recovers the left and right signal channels from the demodulated sound carriers.

FM Identification:

The identification of the FM sound mode is performed by AM synchronous demodulation of the pilot signal and narrow-band detection of the identification frequencies. The result is available via the I†C-bus interface.

NICAM Demodulation:

The NICAM signal is transmitted in a DQPSK code at a bit rate of 728 kbit/s. The NICAM demodulator performs DQPSK demodulation and feeds the resulting bitstream and clock signal onto the NICAM decoder and, for evaluation purposes, to PCLK (pin 1) and NICAM (pin 2).

NICAM Decoder:

The device performs all decoding functions in accordance with the “EBU NICAM 728 specification”. After locking to the frame alignment word, the data is descrambled by applying the defined pseudo-random binary sequence; the device will then synchronise to the periodic frame flag bit C0.

The status of the NICAM decoder can be read out from the NICAM status register by the user. The OSB bit indicates that the decoder has locked to the NICAM data. The VDSP bit indicates that the decoder has locked to the NICAM data and that the data is valid sound data.

SOUND OUTPUT STAGE TDA2614/TDA2615/TDA2616Q

TDA2615 is used as the AF output amplifier for stereo applications. It is supplied by –12VDC coming from a separate winding in the SMPS transformer. An output power of 2*6W (THD=0.5%) can be delivered into an 8ohm load.

TDA2616Q is used as the AF output amplifier for stereo and dolby prologic applications. It is supplied by –16VDC coming from a separate winding in the SMPS transformer. An output power of 2*12W (THD=0.5%) can be delivered into an 8ohm load.

TDA2614 is used as the AF output amplifier for mono applications. It is supplied by –12VDC coming from a separate winding in the SMPS transformer. An output power of 2*6W (THD=0.5%) can be delivered into an 8ohm load.

VERTICAL OUTPUT STAGE WITH TDA8351/8356

The TDA8351/8356 vertical deflection circuit can be used in 90° and 110° deflection systems with field frequencies from 50 up to 120Hz. With its bridge configuration the deflection output can be DC coupled with few external components.

Only a single supply voltage for the scan and a second supply for the fly back are needed. The TDA8356 is intended for 90° systems and the TDA8351 is intended for 110° systems.  The drive voltage is amplified by an amplifier and fed to two amplifiers, one is inverting and the other is a non inverting amplifier.

The outputs (pins 7 and 4) are connected to the series connection of the vertical deflection coil and feedback resistor Rsense (R702//R703). The voltage across Rsense is fed via pin 9 to correction amplifier, to obtain a deflection current which is proportional to the drive voltage. The supply voltage for the TDA8351/8356 is 15VDC at pin 3. The supply voltage generator has a separate supply voltage of 45VDC at pin 6.

VIDEO OUTPUT AMPLIFIER TDA6107Q

The TDA6107Q consists of three monolithic video output amplifiers. The amplifier can be seen as an operational amplifier with negative feedback.

The advantage of negative feedback is that the amplifier characteristics do not play an important role up to certain frequencies.  The internal flash diodes protect the amplifiers against flash over in the picture tube.  The only protections required at the cathode outputs are a flash resistor and a spark gap.

The TDA6107Q has an internal thermal protection circuit which gives a decrease of the slew rate at high temperatures.

Furthermore, the device needs only one power supply voltage (Vdd).

In contrast to previous types of DMOS video amplifiers, all the external resistors (Rf, Ri and Ra) are integrated, so the gain is fixed and saves 9 resistors.

Furthermore, the reference voltage is integrated, it saves a resistor divider and a decoupling capacitor. So, the replacement value of the TDA6107Q is very high.

The TDA6107Q is provided with a black current data pin. Since TDA884X is used as drive device, no adjustments are required for gain and black setting, as the TDA884X has I†C white point adjustment and black current set-up.

SINGLE/MULTISTANDARD VIF/SIF-PLL and FM-PLL/AM DEMODULATOR TDA9818

The TDA9818is an IC for multistandard vision IF signal processing, sound AM and FM demodulation.

It is a gain controlled wide band VIF-amplifier (AC-coupled). It is applicable for IF frequencies of 38.9 MHz, 45.75 MHz and 58.75 MHz. True synchronous demodulation is provided with active carrier regeneration. It has a VCO frequency which can be switchable between L and L accent (alignment external) picture carrier frequency.  The TDA9818 has a SIF input for single reference QSS mode (PLL controlled). SIF AGC detector is to provide gain controlled SIF amplifier. The AM demodulator is without extra reference circuit. The supply voltage is +5VDC at pin 21.

COMBFILTER SAA4961

The SAA 4961 is a one-chip, PAL/NTSC comb filter IC with internal delay lines, filters, clock control, synchronisation and signal switches. The comb filter function is realised in a switched capacitor technique, so it has time discrete but amplitude continuous processing.

The Y/CVBS input is first clamped and then fed to the delay-line and comb filter section via a low pass pre-filter.

This filter can be bypassed via the external LPF-on pin. This pin is internally pulled up, to put the filter default on. The Y/CVBs input is also fed to the sync separator, where horizontal and vertical reference pulses are made.

Bypass mode can be forced via BYP (pin 3).FSC (pin 1) is the subcarrier input which is connected to the colour decoder.  Input FSCSW pin indicates if fsc or 2*fsc is used.

The Sys1,2 pins (20, 23) indicate which system standard is processed. Sys2 is internally pulled up, Sys1 is internally pulled down.

Therefore when the Sys1,2 inputs are left open, automatically PAL 4.43MHz is forced.

SAA4961output pin 15 “CVBS” can be used for parallel-synced teletext decoders, to guarantee that the teletext display always has a correct timing relation with the main picture. Comb filter is disabled by setting SAA4961 pin 3 “BYP” high.

POWER SUPPLY (SMPS)

The DC voltages required at various parts of the chassis are provided by an SMPS transformer controlled by the IC MC44604 which is designed for driving, controlling and protecting switching transistor of SMPS. The transformer produces 150/115V for FBT input, –14V for audio output IC, S+5V for microcontroller, +15V for vertical output (field scan) and +33V for tuner and some other ICs and transistors.

MICROCONTROLLER SDA525X

The device is TV TEXT tuning and control system based on the SDA 525X TV TEXT microcontroller. It is designed for a low cost mono TV-SET with analogue picture and sound control. Neverthless the system offers an on screen display (OSD) and IR remote control of all functions.

SDA525X has the following features:

- Display of program number, channel number, TV standard, analogue values, sleep timer, parental control, and mute is done by OSD.

- Single LED for IR active, standby and on mode indication.

- 1 Control line to select external source.

- 3 Control lines for TV standard selection.

- Frequency synthesis tuning (62.5 kHz steps)

- 192 step fine tuning

- Channels corresponding to standards B/G, OIRT, L and I (I+)

- Mono sound control by analogue voltage

- System configuration with service mode.

SERIAL ACCESS CMOS 8K (1024*8) EEPROM ST24C08

The ST24C08 is a 8Kbit electrically erasable programmable memory (EEPROM), organised as 4 blocks of 256*8 bits.

The memory is compatible with the I†C standard, two wire serial interface which uses a bi-directional data bus and serial clock.  The memory carries a built-in 4 bit, unique device identification code (1010) corresponding to the I†C bus definition.  This is used together with 1 chip enable input (E) so that up to 2*8K devices may be attached to the I†C bus and selected individually.

CLASS AB STEREO HEADPHONE DRIVERTDA1308

The TDA1308 is an integrated class AB stereo headphone driver contained in a DIP8 plastic package.  The device is fabricated in a 1 mm CMOS process and has been primarily developed for portable digital audio applications.

SAW FILTERS

Saw filter type : Model:

G1965M : PAL-SECAM B/G MONO

G3962M : PAL-SECAM B/G GER&NIC STEREO, PAL I’ NIC STEREO, INT-1

G1984 : PAL-SECAM B/G GER&NIC STEREO INT-2

J1951M : PAL-I MONO

J3950M : PAL-I NIC STEREO

J1956M : PAL-I MONO

K2955M : PAL-SECAM B/G-D/K MONO, PAL-SECAM B/G-D/K-I’, MONO, PAL-SECAM B/G-D/K-L MONO

K2958M : PAL-SECAM B/G-D/K (38) MONO

K2962M : PAL-SECAM B/G-L/L’ MONO

G3957M : PAL-SECAM B/G-L/L’ GER&NIC BG/L STEREO

K6256K : PAL-SECAM B/G-D/K-I-L/L’ MONO, PAL-SECAM B/G-D/K-I, L/L’ GER&NIC BG/L STEREO,

PAL-SECAM B/G-D/K-I-L/L’ I, NICAM STEREO, PAL-SECAM B/G-D/K-I-L/L’ GER&NIC I B/G-L, STEREO

K6259K : PAL-SECAM B/G-D/K-I-M/N (EURO) MONO

M1963M : PAL M/N MONO, NTSC M MONO, PAL M/N-NTSC M MONO

BTSC STEREO/SAP/DBX-DECODER and AUDIO PROCESSOR TDA9855

The TDA9855 is a BTSC stereo/SAP/dbx decoder and audio processor. It performs all functions to transform the composite baseband signal into the appropriate audio output signals to line out and to the loudspeaker output stages.

TDA8840/8842/8844:

The TDA884X is IýC-bus controlled single chip TV processor which is intended to be applied in PAL, NTSC, PAL/NTSC and multi-standard television receivers. These IC’ s are nearly pin compatible with the TDA837X TV processors but have a higher degree of integration because the delay line (TDA4665 function) and the SECAM decoder have been integrated. In addition to these functions some additional features have been added like “Continuous Cathode Calibration (2-point black current loop which results in an accurate biasing of the 3 guns), adjustable luminance delay time, blue stretching and dynamic skin tone control. General description of UV1315:

The UV1315 tuner belongs to the UV 1300 family of tuners, which are designed to meet a wide range of applications.

It is a combined VHF, UHF tuner suitable for CCIR systems B/G, H, L, L’, I and I’. The low IF output impedance has been designed for direct drive of a wide variety of SAW filters with sufficient suppression of triple transient.  The UV1316 tuner belongs to the UV 1300 family of tuners, which are designed to meet a wide range of applications.

It is a combined VHF, UHF tuner suitable for CCIR systems B/G, H, L, L’, I and I’. The low IF output impedance has been designed for direct drive of a wide variety of SAW filters with sufficient suppression of triple transient.

TEA6415C:

General Description:

The main function of the TEA6415C is to switch 8 video input sources on the 6 outputs.  Each output can be switched to only one of the inputs whereas but any same input may be connected to several outputs.

All switching possibilities are controlled through the I2C-bus.

TDA9830:

General description:

The TDA9830, a monolithic integrated circuit, is designed for AM-sound demodulation used in L- and L’-standard.  The IC provides an audio source selector and also mute switch.

TDA2614/TDA2615/TDA2616Q:

General Description of TDA2614:

The TDA2614 is a power amplifier in a 9-lead single-in-line (SIL9) plastic medium power package. It has been especially designed for mains fed applications.

General Description of TDA2615:

The TDA2615 is a dual power amplifier in a 9-lead single-in-line (SIL9). It has been especially designed for mains fed applications.

General Description of TDA2616Q:

The TDA2616Q is a dual power amplifier. It is supplied in a 9-lead SIL-bent-to DIL plastic power package (SOT157).  It has been especially designed for mains fed applications.

TDA8351/8356:

General Description:

The TDA8356 is a power circuit for use in 90ł colour deflection system for field frequencies of 50 to 120 Hz.  The circuit operates as a highly efficient class G system.

The TDA8351 is a power circuit for use in 110ł colour deflection system for field frequencies of 50 to 120 Hz.  The circuit operates as a highly efficient class G system.

TDA6107Q:

The TDA6107Q includes three video output amplifiers in a SIL 9 MP (Single In Line 9 pins Medium Power) package SOT111BE, using high-voltage DMOS technology, and is intended to drive the three cathodes of a colour picture tube.

In contrast to previous types of DMOS video amplifiers, all external resistors (Rf, Ri and Ra) are integrated, so the gain is fixed and it saves 9 resistors.

To obtain maximum performance, the amplifier should be used with black-current control and mounted on the CRT panel.

SAA4961:

The SAA4961 is an adaptive alignment-free one chip comb filter compatible with both PAL and NTSC systems and provides high performance in Y/C separation.

It is possible to switch the comb filter into one of the following 3 modes:

1. Comb mode : In this mode, luminance and chrominance comb filter function are active.  Chrominance output pin (pin 12) outputs comb filtered chrominance signal, luminance output pin (pin 14) outputs comb filtered luminance signal and CVBS output pin (pin 15) outputs delay compensated CVBS signal.

2. Comb off mode : In this mode, luminance comb filter function is turned off, but chrominance comb filter function operates.  Chrominance output pin (pin 12) outputs comb filtered chrominance signal, luminance output pin (pin 14) outputs delay compensated CVBS signal and CVBS output pin (pin 15) outputs delay compensated CVBS signal.

3. Bypass mode: In this mode, no IC-function is active. Cext is bypassed to chrominance output pin (pin 12) and Yext/CVBS is bypassed to luminance output pin (pin 14) and CVBS output pin (pin 15).

MC44604:

General description:

The MC44604 is an enhanced high performance controller that is specifically designed for off-line and DC-to-DC converter applications.  It offers a really safe and reliable power management thanks particularly to its protection features (foldback, overvoltage detection, soft start, accurate demagnetization detection). Its high current totem pole output is also ideally suited for driving a power MOSFET, but can also be used for driving a bipolar transistor in low power converters. In addition to these features, the MC44604 offers an efficient stand-by mode.

SDA525X:

General description:

The SDA525X is designed for a low cost mono TV-set with analogue picture and sound control. IN SDA525X the following IC’ s are used and supported:

Non-volatile memory : SDA 2526 or SDA2546

PLL : SDA 3202-3, SDA 3302

IR transmitter: SDA 2208-3 or SDA 2218

IR preamplifier: SFH 506-32

TDA9875:

General description:

The TDA9875 is a single-chip Digital TV Sound Processor (DTVSP) for analogue and digital multi-channel sound systems.

TDA9818:

General description:

The TDA9818 is an integrated circuit for multistandard vision IF signal processing, sound AM and FM demodulation.

ST24C08:

The ST24C08 is a 8Kbit electrically erasable programmable memory (EEPROM), organized as 4 blocks of 256 * 8 bits.  The memory operates with a power supply value as low as 2.5V. Both Plastic Dual-in-Line and Plastic Small Outline packages are available.

TDA9855

General description:

The TDA9855 is a bipolar-integrated BTSC stereo/SAP decoder with hi-fi audio processor (IýC-bus controlled) for application in TV sets.

11AK19 CHASSIS MANUAL ADJUSTMENTS PROCEDURE

In order to enter the service mode, first enter the installation menu (or press blue button on the remote control handset) and then press the digits4, 7, 2 and5respectively.

For ADJUST settings:

Select Adjust using DN or UP button and press RIGHT or LEFT button to enter it. To select different adjust parameters, use DN or UP button.  To change the selected parameter, use LEFT or RIGHT button.

WHITE BALANCE ADJUSTMENT:

The following three parameters are used to make white balance adjustment. To do this, use a Colour Analyser. Using white point RED, white point GREEN and white point BLUE parameters, insert the + sign in the square which is in the middle of the screen.

ADJUST 00 = White Point RED

ADJUST 01 = White Point GREEN

ADJUST 02 = White Point BLUE

AGC ADJUSTMENT:

In order to do AGC adjustment, enter a 60dBmV RF signal level from channel C-12.

Connect a digital voltmeter to pin 1 of the tuner. Change the AGC parameter until you see 3.70VDC on voltmeter display. Check that picture is normal at 90dBmV signal level.

IF-PLL NEGATIVE ADJUSTMENT (Only with PLL tuner):

Connect 38.9 MHz test pattern for PAL B/G, PAL-SECAM B/G, 39.5 MHz test pattern for PAL I or 45.75 MHz test pattern for PAL M/N, NTSC M model to Z401 SAW filter input terminals. Change the IF-PLL Negative parameter until you see IN, DOWN below. If you cannot catch IN, DOWN position this way, using a screwdriver rotate the VIF-COIL LT401 left or right until you see IN, DOWN.

IF-PLL POSITIVE ADJUSTMENT (Only with PLL tuner):

Connect 33.9 MHz test pattern for SECAM L’ model to Z401 SAW filter input terminals. Change the IF-PLL Positive parameter until you see IN, DOWN below. If you cannot catch IN, DOWN position this way, using a screwdriver rotate the VIF-COIL LT401 left or right until you see IN, DOWN.

LUMINANCE DELAY ADJUSTMENT (with only TDA 8844 video processor):

Y-Delay PAL

Enter a PAL B/G colour and black-white bar test pattern via RF. Adjust Y-Delay PAL till the colour transients on the colour bar of the pattern become as sharper and colours between transients do not mix with each other as possible.

Note: If the SAW filter is one of the G1965M, J1951M, J3950M, K2958M, K2962M, G3957M, K6256K, K6259K or M1963M, there is constant group delay distortion, so for an equal delay of the luminance and chrominance signal the delay must be set at a value of 160nS. This means the adjustment must be set to the maximum value.

Y-Delay SECAM

Enter a SECAM B/G colour and black-white bar test pattern via RF. Adjust Y-Delay SECAM till the colour transients on the colour bar of the pattern become as sharper and colours between transients do not mix with each other as possible.

Note: If the SAW filter is one of the G1965M, K2958M, K2962M, G3957M, K6256K or K6259K, there is constant group delay distortion, so for an equal delay of the luminance and chrominance signal the delay must be set at a value of 160nS.  This means the adjustment must be set to the maximum value.

Y-Delay NTSC

Enter an NTSC colour and black-white bar test pattern via RF. Adjust Y-Delay NTSC till the colour transients on the colour bar of the pattern become as sharper and colours between transients do not mix with each other as possible.

Note: If the SAW filter is M1963M, there is constant group delay distortion, so for an equal delay of the luminance and chrominance signal the delay must be set at a value of 160nS. This means the adjustment must be set to the maximum value.

Y-Delay Other

In case of other colour systems, enter this system with colour and black-white bar test pattern via RF. Adjust Y-Delay Other till the colour transients on the colour bar of the pattern become as sharper and colours between transients do not mix with each other as possible. Normally for an equal delay of the luminance and chrominance signal the delay must be set at a value of 160nS.  This means the adjustment must be set to the maximum value.

VERTICAL ZOOM ADJUSTMENT (only for 110 picture tubes):

Enter a PAL B/G circle test pattern via RF. Change vertical zoom till you see the upper and lower limit of the circle as close to the upper and lower limit of the picture tube as possible.

VERTICAL SCROLL ADJUSTMENT (only for 110 picture tubes):

Enter a PAL B/G circle test pattern via RF. Change vertical scroll till you see the circle exactly in the middle of the screen.

HORIZONTAL SHIFT ADJUSTMENT:

Enter a RED PURITY test pattern via RF.Change horizontal shift till the picture is horizontally centred. Check whether this adjustment is correct after completing Service Mode Adjustment.

VERTICAL SLOPE ADJUSTMENT:

Enter a CROSS-HATCH B/G test pattern via RF. Change vertical slope till the size of squares on both the upper and lower part of test pattern become equal to the squares laying on the vertical centre of the test pattern. Check and readjust VERTICAL SLOPE item if the adjustment becomes improper after some other geometric adjustments are done.

VERTICAL AMPLITUDE ADJUSTMENT:

Enter a PAL B/G test pattern via RF. Change vertical slope till horizontal black lines on both the upper and lower part of the test pattern become very close to the upper and lower horizontal sides of picture tube and nearly about to disappear. Check and readjust VERTICAL AMPLITUDE item if the adjustment becomes improper after some other geometric adjustments are done.

S-CORRECTION ADJUSTMENT:

Enter a PAL B/G circle test pattern via RF. Change S-correction till the middle part of the circle is as round as possible.

VERTICAL SHIFT ADJUSTMENT:

Enter a PAL B/G test pattern via RF. Change Vertical Shift till the test pattern is vertically centred, i.e. horizontal line at the centre pattern is in equal distance both to upper and lower side of the picture tube. Check and readjust Vertical Shift item if the adjustment becomes improper after some other geometric adjustments are done.

EW WIDTH ADJUSTMENT (only for 110 picture tubes):

Enter a PAL B/G test pattern via RF. Change EW Width till the vertical black and white bars on both left and right side of the pattern exactly disappear.

EW PARABOLA WIDTH ADJUSTMENT (only for 110ł picture tubes):

Enter a PAL B/G test pattern via RF. Change EW Parabola Width till vertical lines close to the both sides of the picture frame become parallel to vertical sides of picture tube. Check and readjust EW Parabola Width item if the adjustment becomes improper after some other geometric adjustments are done.

EW CORNER PARABOLA ADJUSTMENT (only for 110ł picture tubes):

Enter a PAL B/G test pattern via RF. Change EW Corner Parabola till vertical lines at the corners of both sides of picture frame become vertical and parallel to vertical corner sides of picture tube. Check and readjust EW Corner Parabola item if the adjustment becomes improper after some other geometric adjustments are done.

EW TRAPEZIUM ADJUSTMENT (only for 110 picture tubes):

Enter a PAL B/G test pattern via RF. Change EW Trapezium till vertical lines, especially lines at the sides of the picture frame became parallel to the both sides of picture tube as close as possible. Check and readjust EW Trapezium item if the adjustment becomes improper after some other geometric adjustments are done.

16:9 HORIZONTAL SHIFT ADJUSTMENT:

Enter a RED PURITY test pattern via RF.Change horizontal shift till the picture is horizontally centred. Check whether this adjustment is correct after completing Service Mode Adjustment.

16:9 VERTICAL SLOPE ADJUSTMENT:

Enter a CROSS-HATCH B/G test pattern via RF. Change vertical slope till the size of squares on both the upper and lower part of test pattern become equal to the squares laying on the vertical centre of the test pattern. Check and readjust VERTICAL SLOPE item if the adjustment becomes improper after some other geometric adjustments are done.

16:9 S-CORRECTION ADJUSTMENT:

Enter a PAL B/G circle test pattern via RF. Change S-correction till the middle part of the circle is as round as possible.

16:9 VERTICAL SHIFT ADJUSTMENT:

Enter a PAL B/G test pattern via RF. Change Vertical Shift till the test pattern is vertically centred, i.e. horizontal line at the centre pattern is in equal distance both to upper and lower side of the picture tube. Check and readjust Vertical Shift item if the adjustment becomes improper after some other geometric adjustments are done.

16:9 EW WIDTH ADJUSTMENT (only for 110 picture tubes):

Enter a PAL B/G test pattern via RF. Change EW Width till the vertical black and white bars on both left and right side of the pattern exactly disappear.

EW PARABOLA WIDTH ADJUSTMENT (only for 110 picture tubes):

Enter a PAL B/G test pattern via RF. Change EW Parabola Width till vertical lines close to the both sides of the picture frame become parallel to vertical sides of picture tube. Check and readjust EW Parabola Width item if the adjustment becomes improper after some other geometric adjustments are done.

16:9 EW CORNER PARABOLA ADJUSTMENT (only for 110 picture tubes):

Enter a PAL B/G test pattern via RF. Change EW Corner Parabola till vertical lines at the corners of both sides of picture frame become vertical and parallel to vertical corner sides of picture tube. Check and readjust EW Corner Parabola item if the adjustment becomes improper after some other geometric adjustments are done.

16:9 EW TRAPEZIUM ADJUSTMENT (only for 110 picture tubes):

Enter a PAL B/G test pattern via RF. Change EW Trapezium till vertical lines, especially lines at the sides of the picture frame became parallel to the both sides of picture tube as close as possible. Check and readjust EW Trapezium item if the adjustment becomes improper after some other geometric adjustments are done.

Applicable to:

43PUS7304/12, 43PUS7334/12, 43PUS7354/12, 43PUS7394/12, 50PUS7304/12, 50PUS7354/12, 50PUS7504/12, 50PUS8804/12, 55PUS7304/12, 55PUS7354/12, 55PUS7354/12, 55PUS7504/12, 55PUS8804/12, 70PUS7304/12, 75PUS7354/12

Chassis TPM19.1E LA. Platform MTK5599

Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.

• Be careful during measurements in the high voltage section.

• Never replace modules or other components while the unit is switched “on”.

• When you align the set, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable.

Diagonal screen size

• 108 cm / 43 inch, • 126 cm / 50 inch, • 139 cm / 55 inch, • 146 cm / 58 inch, • 164 cm / 65 inch, • 178 cm / 70 inch, • 189 cm / 75 inch

Alternative BOM identification

It should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.

The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number.

By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with. If the third digit of the serial number contains the number “1” (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a “2” (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. This is important for ordering the correct spare parts.

For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit of the serial number.

Identification:

The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production Centre (e.g. SN is Lysomice, RJ is Kobierzyce), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2010 week 10 / 2010 week 17). The 6 last digits contain the serial number.

Service Modes

The Service Mode feature is split into following parts:

Service Alignment Mode (SAM).

Factory Mode.

Customer Service Mode (CSM).SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set.  SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set. Some features are:

Make alignments (e.g. White Tone), reset the error buffer(SAM and Factory Mode).

Display information (“SAM” indication in upper right corner of screen, error buffer, software version, operating hours, options and option codes, sub menus).

The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call Centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen. The information provided in CSM and the purpose of CSM is to:

Increase the home repair hit rate.

Decrease the number of nuisance calls.

Solved customers’ problem without home visit.

Note: For the new model range, a new remote control (RC) is used with some renamed buttons. This has an impact on the activation of the Service modes.  For instance the old “MENU” button is now called “HOME” (or is indicated by a “house” icon).

Service Alignment Mode (SAM)

To modify the NVM.

To display/clear the error code buffer.

To perform alignments.

Specifications

Operation hours counter (maximum five digits displayed).

Software version, error codes, and option settings display.

Error buffer clearing.

Option settings.

Software alignments (White Tone).

NVM Editor.

Set screen mode to full screen (all content is visible).

How to Activate SAM

To activate SAM, use one of the following methods:

Press the following key sequence on the remote control transmitter: “062596”, directly followed by the “INFO/OK” button. Do not allow the display to time out between entries while keying the sequence.

Or via ComPair.

After entering SAM, the following items are displayed, with “SAM” in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.

How to Navigate

In the SAM menu, select menu items with the UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the UP/DOWN keys to display the next/previous menu items.

With the “LEFT/RIGHT” keys, it is possible to:

– (De) activate the selected menu item.

– (De) activate the selected sub menu.

– Change the value of the selected menu item.

When you press the MENU button once while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background).

How to Store SAM Settings

To store the settings changed in SAM mode (except the RGB Align settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. The mentioned exceptions must be stored separately via the STORE button.

How to Exit SAM

Use one of the following methods:

Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set.

Via a standard RC-transmitter, key in “00” sequence.

Note: When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

Remark: Under main menu “NVM editor”, you can use the UP/DOWN keys to view and change the set Type number, the set Production Number or the 18AC of a part.(The NVM-editor still has the same function as before, alpha-numeric entry.)

SAM mode overview

Factory mode:  To perform extended alignments.

Displaying and or changing Panel ID information.

Displaying and or changing Tuner ID information.

Error buffer clearing.

Various software alignment settings.

Testpattern displaying.

Public Broadcasting Service password Reset.

etc.

How to Activate the Factory mode

To activate the Factory mode, use the following method:

Press the following key sequence on the remote control transmitter: from the “menu/home” press “1999”, directly followed by the “Back/Return” button. Do not allow the display to time out between entries while keying the sequence.

After entering the Factory mode, we can see many items displayed, use the UP/DOWN keys to display the next/previous menu items.

How to Exit the Factory mode

Select EXIT_FACTORY from the menu and press the “OK” button.

Note: When the TV is switched “off” by a power interrupt, or normal switch to “stand-by” while in the factory mode, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

Factory mode overview

Customer Service Mode (CSM)

The Customer Service Mode shows error codes and information on the TVs operation settings. The call Centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps the call Centre to diagnose problems and failures in the TV set before making a service call.

The CSM is a read-only mode; therefore, modifications are not possible in this mode.

Specifications

Ignore “Service unfriendly modes”.

Line number for every line (to make CSM language independent).

Set the screen mode to full screen (all contents on screen is visible).

After leaving the Customer Service Mode, the original settings are restored.

Possibility to use “CH+” or “CH-” for channel surfing, or enter the specific channel number on the RC.

How to Activate CSM

To activate CSM, press the following key sequence on a standard remote control transmitter: “123654” (do not allow the display to time out between entries while keying the sequence). After entering the Customer Service Mode, the following items are displayed. use the Right/Left keys to display the next/previous menu items.  Note: Activation of the CSM is only possible if there is no (user) menu on the screen.

How to Navigate

By means of the “CURSOR-DOWN/UP” knob (or the scroll wheel) on the RC-transmitter, can be navigated through the menus.

How to Exit CSM

To exit CSM, use one of the following methods.

Press the MENU/HOME button on the remote control transmitter.

Press the POWER button on the remote control transmitter.

Press the POWER button on the television set.

CSM overview

Software Upgrading, Error code and Panel Code

Software Upgrading:  The following update is for .pkg file.

1. Rename the file to “upgrade_loader.pkg”.

2. Prepare a USB memory (File format: FLAT, Size: 1G~8G).

3. Copy the software to USB flash disk (root directory).

4. Switch off the TV and Insert the USB memory stick that contains the software update files in one of the TV’s USB 2.0 port.

Note: It contains USB3.0 port, if connect on it, the software may can’t be detected.

5. Switch on the TV. The TV will detect the USB memory s tick automatically. Then a window jumps out as below:

6. When the TV software is updated, the TV will turn on again automatically. Remove your USB flash drive.

7. We can enter in CSM or Factory mode to check the current software version.

The following update is for .upg file.

Ready for F/W Upgrade

1. Rename the file to “autorun.upg”.

2. Prepare a USB memory (File format: FLAT, Size: 1G~8G).

3. Copy the software to USB flash disk (root directory).

4. Switch on the TV and Insert the USB memory stick that contains the software update files in one of the TV’s USB 2.0 port.

Note the version of this F/W before you change the software file name.

Press [Settings], then Choose [Search for update] in the Settings menu.

2. Choose [USB], then press OK

3. Choose [Identify], then press OK

4. .Select the file that you downloaded and press OK

5. Identify the software and choose [Done], then choose [Start] on following step

6.Choose [Upadte] press OK start the software update.  Upgrade in progress.

Check the SW version

1. After burning software, TV will restart

2. Press “123654”, enter Customer Service Mode to check if the software version is correct.

Caution: Please make sure that software upgrade is finished before unplug the USB and AC power.

Error Code

Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every:

• Activated (SW) protection.

• Failing I2C device.

• General I2C error.

The last five errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer.

The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.

An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left.

An error with a designated error code never leads to a deadlock situation. It must always be diagnosable (e.g. error buffer via OSD or blinking LED).

In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed.

How to Read the Error Buffer

• On screen via the SAM/CSM (if you have a picture).

Example:

– ERROR: 000 000 000 000 000: No errors detected

– ERROR: 013 000 000 000 000: Error code 13 is the last and only detected error

– ERROR: 034 013 000 000 000: Error code 13 was detected first and error code 34 is the last detected (newest) error

• Via the blinking LED procedure (when you have no picture).

Error codes overview

In this chassis only “layer 2” error codes are available and point to problems on the SSB. They are triggered by LED blinking when CSM is activated. Only the following layer 2 errors are defined:

How to Clear the Error Buffer

The error code buffer is cleared in the following cases:

• By using the CLEAR command in the SAM menu

• By using the CLEAR command in the Factory mode:

• By using the following key sequence on the remote control transmitter: “062599” directly followed by the OK button.

• If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically.

Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset.

Set Option Code

Press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type: see column “Set Option Code” in below tab. After resetting the Display Code, restart the set immediately.

POWER BOARD A715GA018 – For 50”, 55” 73x4, 50” 55” 7504 Series – schematic

POWER BOARD A715GA025 – FOR 65”, 70”, 75” 73X4 and 55”, 65” 8804 series – schematic

POWER BOAR A715GA052 – For 43”, 73x4 Series – schematic

Audio output schematic

Applicable to: TCL49U7800, TCL50P6, TCL55P6, TCL65P6, TCL50P65, TCL 55P65, TCL65P65

How to access factory menu.

Whenever in this manual you request access to the Factory menu, you must perform the following procedure:

- Turn on the device;

- On the remote control, press the MENU key (key);

- Select Advanced Settings;

- Select IMAGE menu;

- Select the CONTRAST option;

- On the remote control, press the number sequence 9735;

- At that time the factory menu will be available.

With the TV on enter the Factory menu.

In it, verify that the installed software version is correct.

Main SW update via the User Menu

- Download the compressed file update.zip, change the name and extension to “V8-S586T03 -

LF1VXXX.bin ”where XXX is the version number.

Save the file to the root of a USB device.

- Connect the USB device, with the software, to the USB port.

- Select MENU (Key) Update Support. via USB.

- The device will find the Vxxx software. Press "Update".

The update will start. After approximately 4 minutes the TV will automatically restart.

- After restarted, perform the reset by going to the settings menu “MENU (key) Support

Restart the TV. Confirmation and password request is requested. Enter 1234 and press "OK".

- After this the TV will restart.

Note: The version of the Software to be used must be the one informed in the material plan of the respective product.

Save the file to the root of a USB device by renaming it “update.zip”.

- With the device disconnected from the mains, connect the USB device with the installation software, on the USB port.

- Pressing the TV's Power key and keeping it pressed, connect the TV to the mains

- The update will start. After approximately 4 minutes the TV will restart automatically.

- After restarting, perform the reset by going to the settings menu “MENU (key) Support

Restart the TV. Confirmation and password request is requested. Enter 1234 and press "OK".

- After this the TV will restart.

PROJECT ID CHANGE

(If panel information is wrong)

If the screen is completely dark due to the difference in panel x installed software, press 062598 + MENU + xxx (xxx: Panel ID)

For the correct identification of the product, observe the beginning of its serial number.

With this, you can insert the correct values on the plate and restore the product to function.

New panels may be introduced in the future and if the model is one of those listed above but the serial number does not start with any of these informed, obtain the Panel ID from SEMP TCL suitable for the product.

After the update, the TV will enter TV mode and the channel that was previously selected.

Enter the factory menu again, select option 3 - Reset Shop, press enter.

After the reset, switch on the device using the power key.

Panel test mode (warm -up)

Recommended for analysis of panels (spots, dots, scratches, etc.).

Enter the Service Menu as indicated before, turn on the option “Factory hotkey” and turn on the “WARM -UP” function.

A sequence of screens in different colours will be generated where it can be verified with more details, possible panel failures.

In the same “WARM - UP” mode, a table with the main product information will be displayed in the lower right corner.

In this table we have the project information:

We have the project ID, as shown in the table above and following the version of the software in use.

Below the information of the recorded keys (MID):

MAC (Mac Address) Without recording this key, it is not possible to connect to the internet via ethernet (LAN);

DID (Device ID) Product Factory Control; Already included in the main software.

ESN (Netflix) Without recording this key, you will not be able to access Netflix services;

HDCP Without recording this key, high definition images from the HDMI inputs will not be reproduced;

HDCP2.0 Without recording this key, 4K images will not be reproduced;

WIDEVINE Without recording this key, content from YOUTUBE and other sites will not be played.

The last key marked “NULL” in this project refers to the requirements of the

European broadcasts (DVB digital format) that are not required in Brazil. Ignore this key.

IMPORTANT NOTE: If some of the other keys are not recorded, the

“NULL” information to replace the respective key on that line.

In this case, SEMP TCL support should be contacted for instructions from recording procedures.

To EXIT the “WARM - UP” mode, press the POWER key on the device because the functions remote control will be disabled and if the device is just disconnected from the network, the “WARM - UP” mode will return when the network is connected again.

After exiting WARM - UP, enter the factory menu again and turn off the option

Factory Hotkey or give a user reset.

Tension table and software update

Block diagram

PSU Connector (12V) schematic. Only for 12V(14PIN)

12volt to 5volt schematic

12volt to 3V3 volt

12volt to 1.5volt [CPU power]

5volt to 1.1volt [core power]

Audio amplifier circuit

Audio amplifier circuit [AD82587D]

49U7800 power schematic

50P6US power schematic

55P6US power schematic

65P6US power schematic

50P65US & 55P65US power schematic

65P65US power schematic

REMOTE CONTROL CT8518 - RC802N

3D phonic, radio data system, MP3-WMA-WAV-MPEG-3 ASF PLAYBACK – Digital Direct Progressive Scan

Output Power:  120 W (60 W + 60 W) at 6Ω (10% THD

Speaker units: 

Tweeter:  4 cm cone × 1

Woofer: 12 cm cone × 1

Impedance:  6Ω

Disassembly procedure

Main body

 Removing the Metal cover

(See Fig.1 and 2)

(1) Remove the four screws A (both side) attaching the Metal cover. (See Fig.1)

(2) Remove the two screws B attaching the Rear cover. (See Fig.2)

(3) Remove the five screws C attaching the Metal cover. (See Fig.2)

Removing the Front panel assembly

(See Fig.3 to 5)

(1) Disconnect the card wire from the FL board assembly connected to connector CN205 of the Micon board assembly. (See Fig.3)

(2) Remove the two screws D attaching the Front panel assembly. (See Fig.4)

(3) Disengage the hook a (Fig.4) and hook b (Fig.5) from the bottom chassis. (See Fig.4, 5)

Removing the Fan

(See Fig.6, 7)

(1) Disconnect the connector wire from the Fan connected to connector CN602 of the Audio board assembly. (See Fig.6)

(2) Remove the two screws E attaching the Fan. (See Fig.7)

 Removing the Tuner pack

(See Fig.7, 8)

(1) Disconnect the card wire from the Tuner pack connected to connector CN11 of the Micon board assembly. (See Fig.8)

(2) Remove the two screws F attaching the Tuner pack. (See Fig.7)

Removing the Audio board assembly

(See Fig.9 to 11)

(1) Disconnect the connector wire from the Power transformer connected to connector CN601 of the Audio board assembly. (See Fig.9)

(2) Disconnect the card wire from the USB jack board assembly connected to connector CN811 of the Audio board assembly. (See Fig.9)

(3) Disconnect the card wire from the Audio board assembly connected to connector CN203 of the Micon board assembly. (See Fig.9)

(4) Disconnect the card wire from Micon board assembly connected to connector CN217 of the Audio board assembly. (See Fig.9)

(5) Disconnect the card wire from DVD mechanism assembly connected to connector CN722 of the Audio board assembly. (See Fig.9)

(6) Disconnect the card wire from USB jack board assembly connected to connector CN810 of the Audio board assembly. (See Fig.9)

(7) Disconnect the card wire from Micon board assembly connected to connector CN219 and CN220 of the Audio board assembly. (See Fig.9)

(8) Remove the two screws G attaching the Audio board assembly. (See Fig.9)

(9) Remove the two screws H attaching the Power amplifier IC. (See Fig.10)

(10) Remove the three screws J attaching the Amplifier board assembly. (See Fig.11)

Removing the Micon board assembly

(See Fig.12, 13)

(1) Disconnect the connector wire from Power transformer connected to connector CN202 of the Micon board assembly. (See Fig.12)

(2) Disconnect the card wire from Power trans board assembly connected to connector CN201 of the Micon board assembly. (See Fig.12)

(3) Disconnect the card wire from DVD mechanism assembly connected to connector CN21, CN711 and CN831 of the Micon board assembly. (See Fig.12)

(4) Disconnect the card wire from the USB jack board assembly connected to connector CN206 of the Micon board assembly. (See Fig,12)

(5) Remove the two screws K attaching the Micon board assembly. (See Fig.12)

(6) Remove the four screws L attaching the Micon board assembly. (See Fig.13)

Removing the DVD mechanism assembly

(See Fig.14 to 16)

(1) Remove the two screws M (both side) attaching the bracket. (See Fig.14)

(2) Disconnect the connector wire from DVD mechanism assembly connected to connector CN803 of the USB jack board assembly. (See Fig.15)

(3) Remove the one screw N attaching the DVD mechanism assembly. (See Fig.16)

Removing the USB jack board assembly

(See Fig.17)

Remove the one screw P attaching the USB jack board assembly.

Removing the Power transformer board assembly

(See Fig.18 to 20)

(1) Remove the one screw Q attaching the Power trans board assembly. (See Fig.18)

(2) Remove the one screw R attaching the Power trans board assembly. (See Fig.19)

(3) Disconnect the connector wire from Power cord connected to connector CN101 and disconnect the connector wire from Power transformer connected to connector CN102 of

the Power trans board assembly. (See Fig.20)

Removing the FL board assembly

(See Fig.21)

(1) Remove the five screws S attaching the FL board assembly.

3.1.11 Removing the Key board assembly

(See Fig.21)

(1) Remove the Volume knob.

(2) Remove the six screws T attaching the Key board assembly.

(3) Disengage the six hooks c engaged Key board assembly.

DVD mechanism.  Removing the traverse mechanism

(See Fig.1 to 6)

(1) Remove the two screws A attaching the tramecha holder from top side of DVD mechanism assembly. (See Fig.1)

(2) Remove the two screws B attaching the DVD module board. (See Fig.2)

(3) Remove the four screws C attaching the CB holder and take out it. (See Fig.3)

(4) Remove the four screws D attaching the traverse mechanism. (See Fig.4)

(5) Solder the solder part of DVD pick up. (See Fig.5)

(6) Disconnect the card wire from CN101 and CN201 on the DVD module board. (See Fig. 6)

Caution:

• Solder the short land section on the DVD pickup before disconnecting the card wire from the connector on the DVD pickup. If the card wire is disconnected without attaching solders, the pickup may be destroyed by static electricity. • When attaching the DVD pickup, be sure to remove solders from the short land section after connecting the card wire to the connector on the DVD pickup.

Removing the pickup assembly

(See Fig.7 to 11)

(1) Remove the two rod springs pressing the guide shaft. (SeeFig.7)

(2) Remove the screw E and F attaching the spring holder. (See Fig.8)

(3) Remove the read screw from traverse mechanism assembly. (See Fig.9)

Caution:

When remove the lead screw, do not loss the middle gear. (See Fig.10 and 11)

(4) Remove the bar spring pressing the shaft. (See Fig.10)

(5) Take out the pickup assembly from traverse mechanism chassis by order. (See Fig.11)

Removing the feed motor assembly

(See Fig.12)

(1) Remove the one screw G attaching the feed motor assembly.

(2) Remove the feed motor wires from solder part of spindle motor board.

Removing the spindle motor assembly

(See Fig.13)

Remove the two screws H attaching the spindle motor from spindle motor board.

Removing the tray assembly

(See Fig.14 & 15)

(1) Remove the two screws J attaching the clamper base. (See Fig.14)

(2) Remove the one screw K attaching the shaft guide from bottom side. (See Fig.14)

(3) Remove the two screws L attaching the shaft guide from top side. (See Fig.15)

Caution:

When attach the tray assembly, boss of loading sub assembly should attach to guide of bottom side at tray assembly. (See Fig.15)

ADJUSTMENTS

Attention in service of DVD section

(1) When pickup, Flash ROM, DVD module board were changed, initialize EEPROM by all means.

(2) When full initialization was executed, execute learning with a DVD test disk by all means.

Test disc : VT-501, VT-502

Learning method: It is adjusted automatically by normal playback of a DVD test disc.

DVD test mode

TO ENTER DVD TEST MODE, TO EXIT DVD TEST MODE

(1) During TEST MODE (except for Device Key write & DVD Region Re-write), press POWER key.

(2) To exit TEST MODE for Device Key Write & DVD Region Re-write, first AC OFF, then AC ON again to return to normal state.

DVD MODULE EEPROM INITIALIZATION, DEVICE KEY CHECKSUM DISPLAY

DVD CHECK MODES

(1) AC Power OFF.

(2) Press and hold DVD/CD + keys on the front panel. Then AC power ON while holding these keys.

(3) DVD mechanism will start in TEST MODE. The following will be display on the set.

xx = Destination information as follows; JC/1U/D/E/2U/3U/UB/UT/4U/UY/EE/UF

y = region number

v = study state information from MECHA-CON

w = initialization state from MECHA-CON

TO EXIT DVD TEST MODE

(1) During TEST MODE (except for Device Key write & DVD Region Re-write), press POWER key.

(2) To exit TEST MODE for Device Key Write & DVD Region Re-write, first AC OFF, then AC ON again to return to normal state.

DVD MODULE EEPROM INITIALIZATION

DEVICE KEY CHECKSUM DISPLAY

(1) During TEST MODE, press MENU key on remote control to enter DEVICE KEY CHECKSUM display for DVD-AUDIO (CPPM).

(2) System will display as follows.

(3) Press MENU again to enter DEVICE KEY CHECKSUM display for DVD-VR MODE (CPRM).

(4) System will display as follows.

“Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories.

“DTS”, “DTS-ES Extended Surround” and “Neo:6” are trademarks of Digital Theater Systems, Inc.

US Model-STR-DE895-DE995

Canadian Model-STR-DE995

E Model-STR-DE895

Models of area code E2, E3, MX

Rated Power Output at Stereo Mode (8 ohms 1 kHz, THD 0.7 %) 110 W + 110 W 2

Reference Power Output 2 [8 ohms 1 kHz, THD 10 %]

FRONT 1) : 130 W/ch

CENTER 1) : 130 W

SURR 1) : 130 W/ch

SURR BACK 1) : 130 W/ch 3) or 130 W 4)

Models of area code US, CND

Rated Power Output at Stereo Mode

(8 ohms 20 Hz – 20 kHz, THD 0.09 %) 100 W + 100 W

Reference Power Output

(8 ohms 20 Hz – 20 kHz, THD 0.09 %)

FRONT 1) : 100 W/ch

CENTER 1) : 100 W

SURR 1) : 100 W/ch

SURR BACK 1) : 100 W/ch 3) or 100 W 4) (8 ohms 1 kHz, THD 0.7 %)

FRONT 1) : 110 W/ch

CENTER 1) : 110 W

SURR 1) : 110 W/ch

SURR BACK 1) : 110 W/ch 3) or 110 W 4)

Tuning range

Models of area code US, CND

With 10-kHz tuning scale: 530 – 1710 kHz 7)

With 9-kHz tuning scale: 531 – 1710 kHz 7)

Models of area code E2, E3

With 10-kHz tuning scale: 530 – 1610 kHz 7)

With 9-kHz tuning scale: 531 – 1602 kHz 7)

Weight

10.6 kg (23 lb 6 oz) (STR-DE995)

9.7 kg (21 lb 7 oz) (STR-DE895)

TEST MODE

FACTORY PRESET MODE

* All pre-set contents are reset to the default setting.

* Procedure:

While depressing the [MOVIE] and the [MAIN MENU] buttons simultaneously, press the POWER button to turn on the main power.

The message “MEMORY CLEARING” and “MEMORY CLEARED!” appears for a moment and the present contents are reset to the default values.

AM CHANNEL STEP 9 kHz/10 kHz SELECTION

MODE (Except Mexican model)

* Either the 9 kHz step or 10 kHz step can be selected for the AM channel step.

* Procedure:

While depressing the [PRESET TUNING +] button or the [TUNING +] button, press the POWER button to turn on the main power.

Either the message “AM 9kHz Step” or “AM 10kHz Step” appears for a moment and select the desired step.

FLUORESCENT INDICATOR TUBE TEST MODE

* All fluorescent segments are tested.

When this test is activated, all segments light on at the same time, then each segment lights on one after another.

* Procedure:

While depressing the [SB DECODING] (DE895), the [SURR BACK DECODING] (DE995) and the [DISPLAY] buttons simultaneously, press the POWER button to turn on the main power.

4. Press the [DIMMER] button, all segments and all LEDs light on.

5. Every pressing the [DIMMER] button turns on each segment and LED one after another in the same order.

SOUND FIELD CLEAR MODE

* The pre-set sound field is cleared when this mode is activated.

Use this mode before returning the product to clients upon completion of repair.

* Procedure:

While depressing the [2CH] button, press the POWER button to turn on the main power.

The message “S.F. Initialize” appears for a moment.

SOFTWARE VERSION DISPLAY MODE

* The software version is displayed.

* Procedure:

While depressing the [A.F.D.] and the [DISPLAY] buttons simultaneously, press the POWER button to turn on the main power.

The model name, the destination and the software version are displayed for a moment.

COMMAND MODE SELECTION MODE

* The command mode (AV1 or AV2) of the remote commander can be selected.

* Procedure:

While depressing the [ENTER] button, press the POWER button to turn on the main power.

Either the message “COM MODE [AV1]” or “COM MODE [AV2]” appears for a moment and select the desired mode.

SCHEMATIC DIAGRAM — MAIN SECTION (1/3)

SCHEMATIC DIAGRAM — MAIN SECTION (2/3)

SCHEMATIC DIAGRAM — MAIN SECTION (3/3)

MAIN BOARD PWB

DIGITAL BOARD

SCHEMATIC DIAGRAM — DIGITAL SECTION (1/3)

SCHEMATIC DIAGRAM — DIGITAL SECTION (2/3)

SCHEMATIC DIAGRAM — DIGITAL SECTION (3/3)

SCHEMATIC DIAGRAM — DISPLAY SECTION

Samsung Chassis U8KB: Model  UN40H5100AG main board connector voltages, software upgrade, white balance adjustments.  Screen Size (Diagonal)-40 inches: LCD Panel-FHD 60 Hz

Service Adjustment

You must perform Calibration in the Lattice Pattern before adjusting the White Balance.

Color Calibration:  Adjust Specification

Source- Setting Mode- Pattern -Use Equipment

HDMI 1280 x 720@60 Hz Pattern #24 (Chess Pattern) CA210 & Master MSPG925 Generator

Use other equipment only after comparing the result with that of the Master equipment.

Method of Color Calibration (AV)

1. Apply the NTSC Lattice (N0. 3) pattern signal to the AV IN 1 port.

2. Press the Source key to switch to “AV1” mode.

3. Enter Service mode.

4. Select the “ADC” menu.

5. Select the “AV Calibration” menu.

6. In “AV Calibration Off” status, press the “► ” key to perform Calibration.

7. When Calibration is complete, it returns to the high-level menu.

8. You can see the change of the “AV Calibration” status from Failure to Success.

Method of Color Calibration (Component)

1. Apply the 720p Lattice (N0. 6) pattern signal to the Component IN 1 port.

2. Press the Source key to switch to “Component1” mode.

3. Enter Service mode.

4. Select the “ADC” menu.

5. Select the “Comp Calibration” menu.

6. In “Comp Calibration Off” status, press the “ ►” key to perform Calibration.

7. When Calibration is complete, it returns to the high-level menu.

8. You can see the change of the “Comp Calibration” status from Failure to Success.

Method of Color Calibration (PC)

1. Apply the VESA XGA Lattice (N0. 21) pattern signal to the PC IN port.

2. Press the Source key to switch to “PC” mode.

3. Enter Service mode.

4. Select the “ADC” menu.

5. Select the “PC Calibration” menu.

6. In “PC Calibration Off” status, press the “ ►” key to perform Calibration.

7. When Calibration is complete, it returns to the high-level menu.

8. You can see the change of the “PC Calibration” status from Failure to Success.

Method of Color Calibration (HDMI)

1. Apply the 720p Lattice (N0. 6) pattern signal to the HDMI1/DVI IN port.

2. Press the Source key to switch to “HDMI1” mode.

3. Enter Service mode.

4. Select the “ADC” menu.

5. Select the “HDMI Calibration” menu.

6. In “HDMI Calibration Off” status, press the “►” key to perform Calibration.

7. When Calibration is complete, it returns to the high-level menu.

8. You can see the change of the “HDMI Calibration” status from Failure to Success.

Adjustment

1. Into the Factory Mode.

2. Select SVC Menu.

3. Select ADC/WB menu.

4. Select WB menu.

Software Upgrade

Software Upgrade can be performed by downloading the. latest firmware from samsung.com to a USB memory device.

• Current Version - The software already installed in the TV.  Software is represented as ‘Year/Month/Day_Version’.

How to Check the Software Version

Use the Main Menu

1. Click the "MENU" key in remote controller.

2. Select "Support" menu.

3. Locate the menu cursor "Software Upgrade" menu.

4. Click the "INFO" key.  - Check the Main SW and Micom version.

Use the Factory Mode

How to Upgrade Software and Micom

Insert a USB drive containing the firmware upgrade downloaded from samsung.com into the TV. Please be careful not to disconnect the power or remove the USB drive while upgrades are being applied. The TV will turn off and turn on automatically after completing the firmware upgrade. Please check the firmware version after the upgrades are complete (the new version will have a higher number than the older version). When software is upgraded, video and audio settings you have made will return to their default (factory) settings. We recommend you write down your settings before beginning firmware update. After update is completed, restore your previous settings.

Main Software Upgrade

1. Store the sw program named "T-NT14LDEUC" in USB memory stick.

- Connect the USB.

2. Click the "MENU" key in Remote Controler.

3. Select "Support" menu.

Locate the menu cursor "Software Update" menu.

4. Locate the menu cursor "Update now" menu.

5. Click the "ENTER" key.

6. Click the "ENTER" key.

- Wait for upgrade complete.

- Check the Software Version.

Main Board connector voltages

Troubleshooting

Previous Check

1. Check the various cable connections first.

- Check to see if there is a burnt or damaged cable.

- Check to see if there is a disconnected or loose cable connection.

- Check to see if the cables are connected according to the connection diagram.

2. Check the power input to the Main Board.

3. Check the power in & output between SMPS & Main Board, Main Board & Panel, IP & Panel.

How to Check Fault Symptom

Detail Factory Option

NOTE:  If you replace the main board with new one, please change the factory option as well.  The options you must change are "Type".

Entering Factory Mode

To enter ‘Service Mode’ Press the remote -control keys in this sequence:

if you do not have a remote control:

Power Off > Information > Menu > Mute > Power On

if you have factory remote control: Info > Factory

If you don't have factory remote control, can't control some menus.