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SAMSUNG HPR-5072 - PLASMA TV - VOLTAGE ADJUSTMENTS & TROUBLESHOOTING

June 15, 2013, 12:39 am
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SMPS Panel voltages must be adjusted after changing SMPS-PCB or PDP module.
SMPS MAIN VOLTAGE ADJUSTMENT POINT
SMPS DC/DC ADJUSTING POINT
Use base chassis of PDP panel as GND point.
TROUBLESHOOTING
  • The LEDs on the front panel do not work when connecting the power cord.
  • The SMPS relay does not work when connecting the power cord.
  • The power of the unit seems to be out of order.

The SMPS relay or the LEDs on the front panel do not work when connecting the power cord if the cables are improperly connected or the Video Board or SMPS is out of order. In this case, check the following:
  1. Check the internal cable connection status inside the unit.
  2. Check the fuses of each part.
  3. Check the output voltage of SMPS.
  4. Replace the Main Board.

  • The SMPS relay is repeatedly turned on and off.

In general, the SMPS relay repeatedly turns on and off by the protection function due to a defect on a board connected to the SMPS.
  1. Disconnect all cables from the SMPS, operate the SMPS alone and check if the SMPS works properly and if each voltage output is correct.
  2. If the symptom continues even when SMPS is operated alone, replace the SMPS.
  3. If the symptom is not observed when operating the SMPS alone, find any defective ASSYs by connecting the cables one by one.

When separating and connecting the cables such as CN809 of the Main SMPS, CN1, CN2, CN3, CN4 and CN5 of DC-DC SMPS, CN of the X Drive Board, and CN of the Y Drive Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after separating the power cord from the unit.

  • Audio is normal but no picture is displayed on the screen.
  1. This may happen when the Video Board is normal but the X, Y Drive Board, Logic Board, or Y Buffer Boards are out of order.
  2. The output voltage of the Main SMPS or the DC-DC SMPS is out of order.
  3. This may happen when the LVDS cable connecting the Main Board and the Logic Board is disconnected.
When separating and connecting the cables such as CN809 of the Main SMPS, CN1, CN2, CN3, CN4 and CN5 of the DC-DC SMPS, CN of the X Drive Board, and CN of the Y Drive Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after separating the power cord from the unit.
Video is normal but there is no sound.
  1. When the speaker connectors are disconnected or damaged.
  2. When the sound processing part of the Video Board is out of order.
  3. Speaker defect.

A normal/cable network analog broadcast screen is blank or abnormal.
  1. Check the antenna connection settings.  (Antenna 1 - NTSC (Cable), 64QAM, 256QAM, Antenna 2 - NTSC (Air), 8VSB (ATSC))
  2. Check the tuner output signal (CVBS).
  3. Check the power input of the Main board.

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SAMSUNG HPR-5072 - PLASMA TV - PCB ASSEMBLY S - FUNCTIONS - PART NUMBERS {Click on Pictures to Magnify}

June 15, 2013, 12:49 am
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WATSON TG142 – TG203 – TG2100 – TW204 – SET-UP CODES - SERVICE MODE - INITIAL DATA & TROUBLESHOOTING [ Using ICs - TDA9670_MPS3240_STR-G5653_LA78040] - Schematic Diagram [Circuit Diagram] {Click on pictures to Magnify}

June 15, 2013, 5:35 am
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SCHEMATIC DIAGRAM [FULL]
SERVICE MODE
  • In the Stand-By mode, the factory (Service) mode is activated by pressing the DISPLAY + MENU + 3 + 8 + POWER(ON) button in sequence on the remote controller.
  • The menu of the factory mode will be displayed.
The factory mode consists of 9 components:
  • SCREEN
  • W.BAL
  • PICTURE
  • SERVICE1 > You do not need to Select it.
  • VOLUME TEST > You do not need to Select it.
  • Device Check > You do not need to Select it.
OPTION
  • EEPROM Reset > You do not neet to Select it
  • UOC Control > You do not need to Select it.
  • V-CHIP TEST > You do not need to Select it.
  • Select each adjustment mode by pressing CH▲/▼ button.
  • And access it by pressing Vol ▲/▼ button.
INITIAL DATA [FACTORY SET DATA]
TROUBLESHOOTING FLOW CHART
NO POWER (The secondary of the SMPS transformer)
NO RASTER (The power is normal but the heater voltage is “LOW”)
NO PICTURE (SOUND is OK)
NO SOUND (PICTURE is “OK”)
Vertical Line
NO PIP(Option)
UNIVERSAL REMOTE CONTROL SET-UP CODES
RCA RCR 311W >1056
CHUNGHOP RM-889 > 1620,1646,1653,1672,1678,1772,1776,1807,1811,1043,1078,1081,1085,1168,1171,1181,1188
CHUNGHOP RM-962 > 0037,0705,0738,1004


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SONY GDM-F520 - 21CR1 CHASSIS TRINITRON COLOR MONITOR - CABINET REMOVAL - SELF DIAGNOSIS - SCHEMATIC DIAGRAMS [Circuit Diagrams & Voltage Charts]

June 15, 2013, 12:11 pm
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SELF DIAGNOSIS FUNCTION
When your computer enters power saving mode, the input signal is cut and NO SIGNAL appears on the screen before the monitor enters active mode. After a few seconds, the monitor enters power saving mode.
"Deep sleep" is power saving mode defined by the Environmental Protection Agency.
  • When a failure occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the problem. If there is more than one error, the lamp will identify the first of the problem areas.

  • Aging Mode (Video Aging) >  During Power Save, press MENU button for longer than 2 seconds.
  • Self Test (OSD Color Bar) >  During Power Save, push up Control button for longer than 2 seconds.
  • Reliability Check Mode >   During Power Save, push down Control button for longer than 2 seconds.
TIMING SPECIFICATION
CABINET REMOVAL
A2 BOARD - SCHEMATIC
A2 BOARD - IC VOLTAGE LIST
A2 BOARD - TRANSISTOR VOLTAGE LIST
D-BOARD SCHEMATIC

D-BOARD TRANSISTOR VOLTAGE LIST

CLICK ON PICTURES TO ZOOM

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MIVAR 16P1 - 20P1 - CRT BASED TELEVISION - SCHEMATIC DIAGRAM [Circuit Diagram]

June 15, 2013, 7:47 pm
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CIRCUIT DIAGRAM
Click on Circuit to Zoom

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KONKA KDL-32AT23U – KDL-37AT23U – KDL-42AT23U - SERVICE MODE [FACTORY MODE]

June 15, 2013, 11:50 pm
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FACTORY MODE
  • Press  the [ . ] key to  select the  page.
  • Press  the “▲/▼” to  select the item you desired change, and press the  “◄/►”to set the value.
  • Press “Exit” to exit the factory menu , the value you have changed will be save automatically.
WHITE BALANCE ADJUSTMENT
  • Receive black or white signal under AV or PC mode, adjusting brightness and contrast to set the brightness to 15Nit in dark area and 90 Nit in bright area.
  • Adjust white balance. Press[ . ] button to  select the page  adjusting  White calibration.
  • Press the ▲/▼to select the item you desired change, and press the ◄/► to set the values as follow.
Red  Offset => 1000
Green Offset => 1000
Blue  Offset => 1000
  • Then  adjusting Red gain, Green gain, Blue gain” to adjust the  chromaticity coordinates of black and white to fit the requirement.

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MATSUI CTN-1410R - CTN-1410T - CTN-2010R - SERVICE MODE - POWER SUPPLY SMPS CIRCUIT - ERROR MESSAGES

June 16, 2013, 12:27 am
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SERVICE MODE
On both the service printing on the copper and the component side, functional blocks are given. These blocks indicate the functionally of that specific part of the circuit.
SERVICE DEFAULT MODE
  • The CTN software contains a "Service Default Mode" .
  • To activate this mode the service pin of the microcomputer (pin 7-IC7600) should be short-circuited to earth while switching on the set with the mains switch (shorting pin 7can be done on the copper side via the 2 copper squares or on the component side by pin 7 and the shielding of the µC).
  • When the set in the Service Default Mode and "S" appears on the screen.
  • In the Service Default Mode the set is in a pre-defined mode In this mode all analog settings (volume, contrast, brightness and saturation) are in the mid position and the set is tuned to program number 1.
  • The Service Default Mode is left via switching off the set by the mains switch or via standby on the remote control.
ERROR MESSAGES

F1 en: OSD y LED parpadea => Error interno µC => IC7600
F2 en? OSD y LED parpadea => Error Eeprom => IC7685
  • After replacing the microcomputer first solder the shielding before testing the set. This is needed as the shielding is used for earth connection.
  • If this is not done the set can switch into protection mode.
POWER SUPPLY SCHEMATIC

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EVELUX - ORION - T2850 - SERVICE MODE - OPTION MODE - POWER SUPPLY [SMPS] SCHEMATIC DIAGRAM - Remote Control Codes

June 16, 2013, 3:43 am
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SERVICE MODE
All other service settings of TV set are made in so called service mode of TV set operation.
To enter this mode of operation press the keys in the following sequence: "TV", "I", and "STOP" in the period of 5 seconds from switching on the TV set to normal mode of operation.
When the TV set is switched over to service mode the following status line with service parameter and parameter value appears on the screen:
  • The parameter to be set is selected with keys  (P ▲/▼ ), and selected parameter is set with keys  (Volume▲/▼ ).
  • Each time you press the key for parameter selection (▲/▼  ) the value of pre selected parameter is stored. Therefore when the last setting is performed you must press one of the two keys once again. Values of individual parameters are expressed in hexadecimal form due to limited capacity of the memory.
  • Values of individual parameters are variable from 0 to 3F, with the exception of parameters 11,12 and 13 where values are changed from 0 to 7F and O1, O2, O3, O4, which have value range between 0 and FF.
  • When setting is finished it should obligatory be concluded with "STOP" key. After a few seconds the status line disappears and service adjustment is accomplished.
OPTION BYTES
Option bytes enable program configuration of colour TV set. Changing individual bites of a byte modifies the characteristics of TV set.
Option bytes are set so that besides selected option byte also hexadecimal number is set on the basis of above tables.
Example:
blue back-enable
dynamic scin control enable
blue stratch enable
Select option byte O1 and for items, which should be activated, set “1” (other bites are “0”). In our case is as follows:
Shaded binary number should now be converted to hexadecimal value (darker frame). Afterwards set this value.
CAUTION: Option bytes are Factory adjusted and must NOT be changed later, because they change TV set characteristics.
Conversion from binary to hexadecimal help table:
   If you press ikey (info) on remote control when the TV set is in service mode, you will get on the screen information about the version of current software (e.g.: VER:E9F1.6) and devices connected on I2Cbus:

Video processor:  Bus controlled TV processor for video and audio signal
MSP 34XX:  Digital stereo sound processor
SDA 9288:  PIP processor
TUNER2:  Second tuner for PIP picture
TDA 8540:  SVHS video matrix switch
TDA 8425:  HI-FI Stereo audio processor for stereo through SCART connector
If device is installed and properly connected on I2C bus it will respond with“OK” beside the name of device, otherwise there will be “XX” on this place.
SMPS SCHEMATIC
CLICK ON PICTURES TO ZOOM
Universal remote control codes:
 3 DIGIT CODES: 116,007.009,010,025,059,060,062,063,064,069,070,074,108,118
158,162,185,187,194,196,202,205,219,236,249,250,251,296,108
4 DIGIT CODES: 1350 1051 1423 1215 1136 1079 
ORION (HUNGARY):  1052 1012 1289 059 1051 1104 1075 1049

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SAMSUNG - WS32Z308PA - HOW TO ADJUST FOCUS - SCREEN - WHITE BALANCE ADJUSTMENT

June 16, 2013, 10:00 am
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FOCUS ADJUSTMENT
Since the S62A chassis has a built-in dynamic focus circuit, take care when adjusting the focus. When the CRT PCB, FBT or CRT has been replaced, the focus has to be adjusted according to the following procedures.
  • Display the CROSS Hatch pattern.
  • Set the Screen Adjustment to "View as Standard".
  • Turn the Static Focus VR clockwise to the maximum position. (End of clockwise direction)
  • Turn the Dynamic Focus VR counter clockwise to the maximum position. (End of counter clockwise direction)
  • Slowly turn the Static Focus VR counter clockwise so that the center vertical line is the most clearly displayed.
  • Slowly turn the Dynamic Focus VR clockwise so that the 2nd line is the most clearly displayed.
  • Check the entire screen focus and repeat steps 3 to 6, if necessary.
SCREEN VOLTAGE ADJUSTMENT
  • Select "Info => Menu => Mute => Power On" to enter Service Mode.
  • Initialize all settings to the values appropriate to the corresponding model.
  • Display the Toshiba pattern.
  • Using an Oscilloscope, measure the size of RK, BK and GK to the Pedestal Level.
  • Adjust the Screen VR of FEB so that the highest point of the Pedestal Level is 175V.
WHITE BALANCE ADJUSTMENT
  • Initialize all settings to the values appropriate to the corresponding model.
  • Select "Info => Menu => Mute => Power On" to enter Service Mode.
  • Initialize all settings to the values appropriate to the corresponding model.
  • Display the Toshiba pattern and adjust the White Balance using CA100 with the coordinates of the corresponding model.
Enter Video Adjust1 of Service Mode. Adjust Low/Light.
Adjust Sub Bright to set Y.
Adjust B Cutoff to set y.
Adjust R Cutoff to set x.
Enter Video Adjust1 of Service Mode. Adjust High/Light.
Adjust Sub Contrast to set Y.
Adjust B Drive to set y.
Adjust R Drive to set x.
Check Low/Light and readjust it if its value has been changed.
If you have readjusted Low/Light, readjust High/Light until the two values are identical to the coordinates of the corresponding model.
White Balance Standard Data
Check List for the Screen Voltage and White Balance Adjustment
  • The Screen Voltage and White Balance are connected each other, and both of them have to be configured to the correct values.
  • Adjust the White Balance after the Screen Voltage was adjusted, and check if the Screen Voltage is normal after adjusting the White Balance.
  • If the White Balance is readjusted, check the Screen Voltage again.
  • When the adjustment is finished, check the following checklist.
  • If there is a spot on the screen when turning the TV set off/on, adjust the Screen Voltage again.
  • If there is a ghost line on the screen, adjust the Screen Voltage again.

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ONIDA 14XS / 20XS / 21IQ, 14TVE / 20TVE / 21TVE, 21BLACK FGL (FTG) - SERVICE MODE

June 16, 2013, 9:52 pm
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SERVICE MODE
  • The following display comes on the screen by pressing DISPLAY key and VSM key at the same time.
FACTORY
SERVICE  MODE
  • Then, press CURSOR UP OR DOWN key to be in Service menu.
  • To select Service Menu parameters use CURSOR UP OR DOWN key and to adjust these parameters use CURSOR LEFT OR RIGHT key.
H-LINE
  • To get H-line press VSM and DISPLAY Simultaneously.
  • Press CURSOR UP KEY to get R CUTOFF.
  • Press '0' to get H-line.
  • To come out of H-line again press '0'.
VSM PRESET.
There are FOUR VSM PRESETS.(CARTOON,FILM/POP,NEWS,)
For the setting of individual VSM PRESETS
  • Press VSM and DISPLAY at the same time.
  • Press CURSOR DOWN key to get the Setting for the VSM PRESET.
  • Press CURSOR DOWN key for the selection of each parameter.
  • Use CURSOR LEFT/RIGHT key for their setting as per the table given below.
  • Press VSM Key for selection of VSM PRESETS.
CLICK ON TABLES TO ZOOM
VCO Adjustment
  • Switch ON the TV Set.
  • Select colour bar pattern {carrier frequency of 38.9MHz} from pattern generator.
  • Connect this signal to the input of Saw Filter(after disconnecting IF output of Tuner)
  • Connect Digital Multimeter to AFC out(pin no. 2 of VCD IC52771, IC201)
  • Adjust VCO coil in such a way that Digital Multimeter shows 4V(sudden change in voltage reading from8V).  This voltage should be adjusted whenever there is sudden fall from8V to 1V.
 Use non-metallic adjustment tool (eg~ceramic) for adjustment.
#  Correct AFT voltage alignment can be confirmed by monitoring proper wave format pin no. 38 of VCDIC 52771 IC no. 201./CRO can be also connected to Video OUT terminal.
Low light Adjustment
Warm up the receiver for more than 30 minutes.
  • Receive the monoscope pattern signal .
  • Select either R CUTOFF , G CUTOFF  B CUTOFF in the Service menu.
  • Push 0 key on any mode to make a horizontal line.
  • Turn the screen knob (the Bottom of FBT) gradually from fully left to the right & search for the first appearing colour.
  • Adjust two colours except for the first colour which appears by the adjustment 5) to the white colour with the following 1~ 6 key.
  • Turn the screen knob so that a horizontal line appear slightly.
  • Change the normal screen by pushing 0 key again.
  • Receive the pedestal pattern signal
  • Readjust the Colour of the pattern to white colour by varying 1~ 6
High light Adjustment.
Warm up the receiver for more than 30 minutes.
The low light adjustment should be done in advance.
  • Receive the monoscope pattern signal .
  • Select R-DRIVE &/OR B DRIVE in the Service Menu.
  • Adjust R-DRIVE& B-DRIVE so that the white balance is at the directed value (Adjustment point “A”).
  • Check if the tracking of white balance from Low light till High light is good.
  • Receive the pedestal pattern signal .
  • Check if the white balance of low light is good. If the white balance of the low light is not good, adjust the low light again.
  • Receive the monoscope pattern signal. Repeat step (4) onwards till perfect white balance is achieved in low light and high light patterns.
Bright Adjustment
  • Receive the Black pedestal pattern signal .
  • Select Sub Bright in the Service Menu.
  • Adjust the Sub Bright so that the point of below table gradation value does not shine.
Note : While entering in Service Menu ,by default it takes the values of VSM cartoon, hence the above parameter is adjusted with respect to cartoon condition.
Contrast Adjustment
  • Receive the Black pedestal pattern signal.
  • Connect the probe of the oscilloscope to green cathode.
  • Select   Sub Contrast in the Service Menu.
  • Adjust it so that the value between the dot line & white peak of the signal waveform as mentioned below to be the directed voltage as mentioned in the Table below.
Note : While entering in Service Menu ,by default it takes the values of VSM-cartoon, hence the above parameter is adjusted with respect to cartoon condition.
Colour Adjustment (PAL)
  • Receive the PAL colour bar pattern signal .
  • Connect the probe of the oscilloscope to green cathode.
  • Select Sub color in the Service Menu.
  • Adjust the Sub color so that the value between the white peak & blue as per below table.
Note: While entering in the SERVICE MENU by default it takes the value of VSM cartoon, hence the above parameter is adjusted with respect to cartoon condition.
Colour Tint Adjustment (NTSC3.58,NTSC4.43)
  • Connect the NTSC Video Colour bar pattern signal    (White 75%) to Video input Terminal.
  • Connect the probe of the oscilloscope to BLUE CATHODE.
  • Adjust the  Sub Tint so that the value between the white peak and Magenta is as per the table shown below.
Note: While entering in the SERVICE MENU by default it takes the value of VSM cartoon, hence the above parameter is adjusted with respect to cartoon condition.

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SAMSUNG - LE26A336J1N – LE32A33 – LE37A33 – LE40A33 – LE32A33 J N - TROUBLESHOOTING - SERVICE MODE - OPTION TABLE

June 17, 2013, 12:54 am
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TROUBLESHOOTING
NO POWER
  • The LEDs on the front panel do not work when connecting the power cord.
  • The SMPS relay does not work when connecting the power cord.
  • The unit appears to be dead.
The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning. In this case, check the following:
  1. Check the internal cable connection status inside the unit.
  2. Check the fuses of each part.
  3. Check the output voltage of SMPS.
  4. Replace the Main Board.

No Video (Analog PC signal)
  • Audio is normal but no picture is displayed on the screen.
  1. Check the PC source
  2. Check the SEMS01
  3. This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

No Video (HDMI - Digital Signal)
  • Audio is normal but no picture is displayed on the screen.
  1. Check the HDMI source
  2. Check the SEMS01
  3. This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No Video (Tuner_CVBS)
  • Audio is normal but no picture is displayed on the screen.
  1. Check the Tuner CVBS source
  2. Check the SEMS01
  3. This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No Sound
  • Audio is normal but no picture is displayed on the screen.
  1. Check the RF Source
  2. Check the SEMS01
  3. This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
  • Usually, a color LCD-TV needs only slight touch-up adjustment upon installation.
  • Check the basic characteristics such as height, horizontal and vertical sync.
  • Use the specified test equipment or its equivalent.
  • Correct impedance matching is essential.
  • Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV. When inserting signal markers, do not allow the marker generator to distort test result.
  • Connect the TV only to an AC power source with voltage and frequency as specified on the back cover nameplate.
  • Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts.
  • To protect against shock hazard, use an isolation transformer.
SERVICE MODE
  • To enter ‘Service Mode’ Press the remote -control keys in this sequence :
INFO => MENU => MUTE => Power on
The buttons are active in the service mode.
  • Remote Control Key : Power, Arrow Up, Arrow Down, Arrow Left Arrow Right, Menu, Enter, Number Key (0~9)
  • Function - Control Key : Power, CH +, CH -, VOL +, VOL -,Menu, TV/VIDEO (Enter)
Panel Check
You have to check Panel Maker Because of different adjustments as follows.
First of all, Check the label rating
Label Rating File
LCD PANEL MARK A:ACER(AUO), S : SEC, C : CMO
# If not printed you could consider S (sec) panel mark
FACTORY DATA
Checksum
T-JDEPEUMD-XXXX (Main Micom Ver.)
T-PERLDEUC-XXXX(DTV MICOM Ver.)
EDID: L12_1366_768 Success
HDCP Success
Month/Day/Year  Hour/Min./Sec.
OPTION TABLE
CLICK ON TABLES TO ZOOM

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SANYO MULTISYSTEM CE29EF1[RUSSIA] – BPL - INITIALIZING - SERVICE MODE - GRAY SCALE ADJUSTMENT - VOLUME LOCK - TUNING LOCK - SPECIAL FUNCTIONS

June 17, 2013, 2:13 am
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INITIALIZING PROCEDURE
  • Put a new memory IC.
  • Turn on the TV set.
  • Press and hold the TV/AV Selector on the TV set for more than 2 seconds. The following picture appears on the screen.
  • Press the PROGRAMME UP on the TV set while the above On-Screen Display is still on the screen. The following picture appears on the screen.

  • This completes the initialization of memory IC.
Following shows the initialized contents of memory data by this procedure.
Plug & Play : No executed
Inhibit Data : Cancelled
Ch Skip Data : Cancelled
Sound Volume Data : 10/63 steps.
Volume Lock  : OFF
Tuning Lock : OFF
Music Mode : OFF
AV Start : OFF
Colour System : AUTO
Required Service Adjustments
Readjust the following service adjustments.
Adjustments Service Mode No. & Item
  • RF AGC Item 01, RF AGC
  • Horizontal centre Item 02, H-PHA
  • Vertical size Item 05, V-SIZ
  • Vertical linearity Item 06, V-LIN
  • Vertical S-Correction Item 07, V-SCO
  • Gray scale Item 30-33, 35-37
SERVICE MODE
  • Press and hold the MENU button on the Remote Control and press the VOLUME (+)button on the TV set.  Following setting items appears on the screen.
  • Select item by pressing the TIMER (Item No. UP) or SOUND MUTE (Item No. DOWN) button on the remote control handset.
  • Adjust data value by pressing the VOLUME +or VOLUME -button on the remote control handset.
  • To return to normal TV mode, press the MENU button on the TV set or the remote control handset.
GRAY SCALE ADJUSTMENT
Items 30-33, 35-37 GREY SCALE
  • Receive a monochrome circular pattern.
  • Set the brightness and colour to normal, contrast to maximum.
  • Enter to the service mode.
  • Select No. 30 RBIAS (Red Bias), No, 31 GBIAS (Green Bias), and No. 32 BBIAS (Blue Bias) and set each data to 0 by pressing the VOLUME + or - key.
  • Select No. 33 RDRIV (Red Drive) and No. 35 BDRIV (Blue Drive) and set each data to 64 by pressing the VOLUME + or - key.
  • Turn Screen Control on the FBT (T471) to minimum (fully counter-clock-wise).
  • Select No. 36 (1-line appear).
  • Advance Screen Control clockwise to obtain just visible one colour line. If line does not appear, place this control to maximum (fully clockwise).
  • Raise each Bias Level with 1, 2, 5, 6, 9 and 0 keys to obtain just visible white line.
  • Select No. 37 DRV (Drive Adjustments).
  • Adjust Red and Blue Drive Levels alternately with 3, 4, -/-- or RECALL key to produce normal black and white picture in highlight areas.
  • Check for proper grayscale at all brightness levels. To turn off the TV Service Menu display, press the MENU key.
SPECIAL FUNCTIONS
  1. Volume Lock setting: With this function, a maximum sound volume limit can be set at any level.
  2. Tuning Lock setting: Once TUNING LOCK is switched on, further channel tuning (Pre-set) is not possible. The Channel Swapping function also is not possible.
  3. Music Mode setting: When Music Mode is ON, Programmed position from “247” to “255” and “0” are set Music Mode. Only sound is provided and any picture is not on the screen under Music Mode.
  4. AV Start setting: Set AV-START to ON and every time the TV set is switched on, AV1 position will be the initial programmed position.
How to set the special function
NOTE:  When making the VOLUME LOCK setting, set the desired maximum sound volume by pressing the VOLUME + or -button before entering Special Function setting mode.
  • To enter into the special function setting mode, press and hold the MENU button of the remote control, then press the PROGRAMME DOWN button on the TV set.
  • Select an item of the special functions by pressing the PROGRAMME UP or DOWN button on the remote control or the TV set.
  • Set the selected special function “ ON “ by pressing the VOLUME + or - button. To cancel, set to “ OFF”.
  • Press the MENU button of the remote control to return to the normal TV mode.

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JVC AV-20FD22 _ TV-DVD COMBO - HOW TO ENTER SERVICE MODE - SELF DIAGNOSIS - MEMORY IC REPLACEMENT

June 17, 2013, 5:35 am
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SERVICE MODE
  • To enter the Service Mode, press both set key and remote control key.
  • Press both the VOL. key and remocon keys simultaneously for more than 1 second.
  • Press both the STOP key and remocon keys simultaneously for more than 3 seconds
CONFIRMATION OF USING HOURS
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
  • Set the VOLUME to minimum.
  • Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second.
  • After the confirmation of using hours, turn off the power.
SELF DIAGNOSIS
The Self-Diagnosis function will operate when both STOP button on the set and Channel button (9)on the remote control are pressed simultaneously (for more than 3 seconds) at DVD LOGO screen with No Disc.
NOTE: No diagnosis of FL CHECK on the TV/DVD Player.
  • After the diagnosis, the results only for the SRAM, EEPROM and SDRAM will appear on the TV Monitor.
In case of OK, "PASS" will appear for the each diagnosis.
RESULT
PASS : SRAM
PASS : EEPROM
PASS : SDRAM
To finish the Self-Diagnosis, turn off the power on the Main unit.
MEMORY IC REPLACEMENT
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE.
CLICK ON PICTURES TO ZOOM
  • Enter DATA SET mode by setting VOLUME to minimum.
  • Press both VOL. DOWN button on the set and Channel button (6)on the remote control for more than 1 second.  ADDRESS and DATA should appear as:
  • ADDRESS is now selected and should "blink".
  • Using the VOL. UP/DOWN button on the remote, step through the ADDRESS until required ADDRESS to be changed is reached.
  • Press ENTER to select DATA. When DATA is selected, it will "blink".
  • Again, step through the DATA using VOL. UP/DOWN button until required DATA value has been selected.
  • Pressing ENTER will take you back to ADDRESS for further selection if necessary.
  • Repeat steps 3 to 6 until all data has been checked.
  • When satisfied correct data has been entered, turn the Power OFF or return to Standby mode to finish data input.
  • The unit will now have the correct DATA for the new memory IC.

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LG 37LC2R – LG42LC2R – LG32LB1R – LG37LB1R – LG42LB1RN –[Xcute 125] Hurricane 3 - TROUBLESHOOTING FLOWCHART

June 17, 2013, 8:33 am
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TROUBLESHOOTING
No power.
  • Minute discharge doesn't occur at module.
  • Front LED doesn't come into action.
{CLICK ON CHARTS TO ZOOM}
Protection mode.
  • After once shining, it doesn't discharge minutely from module.
  • The relay falls.( The sound is audible “ Click”)
  • It is converted with the colour where the front LED is red from white.
No Raster.
  • No OSD and image occur at screen.
  • It maintains the condition where the front LED is white.
In case of becomes unusual display from RF mode (Main).
In the case of becomes unusual display from  rear AV mode (main).
In the case of becomes unusual display from rear S-Video mode (main)
In the case of becomes unusual display from side AV mode (main)
In the case of becomes unusual display from side S-Video mode (main).
In the case of becomes unusual display from SCART 1 mode (main).
In the case of becomes unusual display from SCART 1_RGB mode (main).
In the case of becomes unusual display from SCART 2 mode (main).
In the case of becomes unusual display from SCART 2_YC mode (main).
In case of becomes unusual display from RF mode (Sub).
In case of becomes unusual display from component mode (main/sub).
In case of becomes unusual display from component 2 mode (main/sub).
In case of becomes unusual display from RGB mode (main/sub).
No Sound.
LED is White
Screen is existent, but no sound output.
HDMI MODE

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LG 37LC2R – LG42LC2R – LG32LB1R – LG37LB1R – LG42LB1RN –[Xcute 125] Hurricane 3 - Gprobe 5 How to Install & Downlaod procedure

June 17, 2013, 9:23 am
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  • Install the GProbe Software from the Desktop using the GProbe 5.2.0.2.exe file.
  • After installing GProbe 5.2.0.2 install the CGProbe from CGProbe Redistributable 5.2.0.4.exe as shown in the figure.
  • Select the I con named GProbe 5 Tool for downloading the software in T.V. from the desktop.
  • Verify the GProbe UI Version: 5.2.02 and CGProbe Version: 5.2.0.4 from the Help menu under About GProbe.
  • Choose the appropriate chip from Select Chip: FLI 8638
  • Check Connection settings.
Set the Connections as shown in figure:
  • Device: Serial
  • Protocols: SERI AL1
  • Scheme: Serial connection for all Genesis Chips.
Set the Connections as shown in figure:
  • Port: COM1 Data Bits: 8
  • Baud Rate: 115200    Parity: None
  • Stop Bits: 1
Set the Connections as shown in figure:
  • Port: 0x378
  • Clock Frequency: 60000 Hz 
  • Scheme: Standard Speed LPT1(0x378).
{Click on Pictures to Zoom}
Set the Connections as shown in figure:
I/p Pin: 15(active high)                             O/p Pin: 17(active high)
SDA Signal I/p Pin: 11(active high)          SDA Signal O/p Pin: 9 (active high)
Scheme: Default Pin Assignments
Set the Connections as shown in figure:
Scheme: Default USB Setting
Set the Connections as shown in figure:
Short Timeout: 1000 ms                           Long Timeout: 15000 ms
Address: 4096                                         Size: 4096 
Scheme: Default Setting.
Select the “Commands” Option and then select the “Batch” option to locate the Path  from where the “.text file” has to be downloaded which contains the information regarding the location of final “.hex file”.
Browse the .txt file from its specified location in the directory such as:
C:\clearcase_rohit\rohit_view2\CC_HURRICANE3_H\10_Source\FLI8668\Isp\batch\CORTEZ_A.txt
After selecting the Appropriate Batch file Check that the T.V is in GProbe Mode for downloading the software other wise it generate an Error.
RS232 Host: Gprobe.
Baud Rate: 115200bps(T.V in Power on state)/9600bps (T.V in stand by Power off).
After selecting the Appropriate Batch file Check that the T.V is in GProbe Mode for downloading the software other wise it generate an Error.
Error: Timeout while waiting for Response.
If the connections between T.V Board and C.P.U are not proper or  T.V is not in the Gprobe mode it will give “Error Message” as shown in figure.
Error Message: Timeout while waiting for Response.
So Check the connection properly and GProbe condition & again Start Downloading.
After Downloading complete its shows :
Execution time:  XXX.XX second (~~Approx)
Batch: Command Successful.

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LG 37LC2R – LG42LC2R – LG32LB1R – LG37LB1R – LG42LB1RN –[Xcute 125] Hurricane 3 - HOW TO DOWNLOAD EDID DATA - FL-18668 IC Function Details

June 17, 2013, 10:08 am
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EDID DATA DOWNLOAD
Required Test Equipment.
  • Adjusting PC with S/W  for writing EDID Data.(S/W  : EDID TESTER Ver.2.5)
  • A Jig  for EDID Download
  • Cable  : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub 15Pin cable, DVI to HDMI cable.
SETTING OF DEVICE
PREPARATION FOR ADJUSTMENT
  • As above, Connect the Set, EDID Download Jig,, PC & Cable
  • Turn on the PC & EDID Download Jig. And Execute the S/W  : EDID TESTER Ver.2.5
  • Set up the S/W option.
Repeat Number : 5
Device Address : A0
PageByte : 8
Example Data of EDID(42PC1R-ZH)
42PC1R-ZH  DDC data of Analog-RGB (Check Sum  : CE )
42PC1R-ZH  DDC data of Digital_HDMI (Check Sum  : 0B2B)
Sequence of Adjustment.
  • Init the data
  • Load the EDID data.( Open  File  : Analog ,Digital)
  • Push the “Write Data & Verify” button. And confirm “Yes”.
  • If the writing  is  finished, you will see the “ OK” message
  • It is important that PP62A/C has two HDMI so digital DDC downloading  must  be performed two times(HDMI 1 , HDMI 2)
Main Scaler FL18668 Functions
  • The FLI8668 chip has a flexible Analog Front End (AFE) with 13 configurable inputs through an analog multiplexer before the Analog to Digital Converters (ADCs).
  • It also contains an embedded Multi-Standard Video Decoder. This decoder contains a digital comb filter for optimum Y/C separation. A 3D comb filter is available for optimum Y/C separation, that reduces or eliminates any artifacts due to poor Y/C separation seen on standard 2D video decoders on composite inputs, most commonly found on TV tuners.
  • The FLI8668 microprocessor can process a wide range of Vertical Blanking Interval (VBI) data and display this data with the bitmap OSD processor. The microprocessor can support VBI data processing in the Main or PIP channels as well as in the background when the corresponding video stream is not present on the output stream. The VBI data slicer can extract data encoded into the VBI of the input video stream. Decoded data bytes from the VBI data slicer are stored in a memory buffer for subsequent processing by the microprocessor. The microprocessor decodes the different formats of the VBI data and passes the information to the OSD controller for output to the display controller. The VBI decoding process can run continuously in the background for inputs that contain VBI data.
  • The Digital Input Port is a 48-bit data input with flexible conf iguration to support a wide range of digital sources. It consists of two 24-bit ports (PORT A and PORTB),two sets of control signals (VS,HS,ODD,etc.), and 4 input clocks. Up to 4 different inputs are supported as long as at least 2 of these inputs are 8-bit CCIR656. The digital input port can also be configured to support one 30-bit input with a second 16-bit input port. Bit 7 to 0 of PORTA can be configured as a bi-directional interface for media card applications.
  • DCDi (Directional Correlation De-Interlacing) is an algorithm from Genesis Microchip’s Faroudja division, that is used to de-interlace video content (convert from interlaced to progressive scan). DCDi is known for its smooth interpolation of video content as it fills in the missing lines. Its purpose is to eliminate jagged edges (jaggies) along diagonal lines caused by interpolation, resulting in the projection of cinema-like images with exceptional picture quality.
  • The FLI8668 allows a very flexible PIP display configuration whereby either the graphics or video channel may act as the PIP source to overlay over the other channel. Any one of the inputs (analog RBG, 24-bit digital, 8-bit digital, YPbPr, composite video, etc) may be multiplexed to either channel. The PIP can be from any of the AIP (Analog Input Port) 1 or 2 or DIP (Digital Input Port) 1 or 2. Single PIP allows the PIP display to be placed arbitrarily in the display window. It can be placed within the Main display, partially overlapped with Main display, or fully detached from Main display. Multiple PIPs display allows a number of PIP windows to be displayed at the same time depending on display pixel resolution. The Main and one PIP window will be running in real time. There are up to 16 PIP windows available at the same time, however only one might be acti ve. All of them should be aligned to the 4x4 grid. Default S/ W application uses multiple PIP windows to display different RF channels.
  • Two LVDS channels (A and B) are available on the output of the FLI8668 to transmit data and timing information to the display device. FLI8668 directly drives the standard LVDS interface panels, supporting all standard data formats—single and dual bus, 18- or 24-bit data output. The 24-bit data may be mapped as either standard receiver formats.
  • The FLI8668 has a fully programmable, true color bitmapped OSD controller capable of displaying up to 16 “tiles” or bitmap windows on the display. The individual tiles are programmable for location, size and bits per pixel, and have a precedence determining which tiles appear when overlapping occurs on the display. Tile data is stored in the external frame store memory by the OCM in either : 1, 2, 4, or 8-bit per pixel format. On-chip table registers point to the start of tiles in external memory. A programmable on-chip 256x24-bit color lookup table is provided to map the OSD pixels onto a true 24-bit color space.
  • The FLI8668 on-chip microcontroller (OCM) serves as the system microcontroller. It programs the FLI8668 and manages other devices in the system such as the keypad and non-volatile RAM (NVRAM) using general-purpose input/output (GPIO) pins. The OCM can address a 22-bit address space to utilize 4 MB external ROM.

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LG37LB1R - LG32LB1R LCD TV - EDID DOWNLAOD - WHITE BALANCE ADJUSTMENT

June 17, 2013, 11:58 am
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EDID DOWNLOAD
  • Use the proper signal cable for EDID Download
  • Analog EDID: Pin3 exists
  • Caution: - Never connect HDMI & DVI-D & DVI-A Cable at the same time.
Data
  • ANALOG(128Bytes)
  • DIGITAL(128Bytes)
EDID FOR HDMI(256Bytes)
Detail EDID Options are below(a, b, c, d, e)
a. Product ID
b. Serial No : Controlled on production line
c. Month, Year : Controlled on production line
d. Model Name(Hex) :
WHITE BALANCE ADJUSTMENT
Manual white Balance (AV)
  • Execute CA-110 Zero Calibration.
  • Execute the SET Heat Run for 30minutes
  • Push the ADJ Button then you can see the OSD
  • Push the ADJ Button again for White Balance mode.

  • Adjust High light with R/B Gain/Offset (G Gain fix, G Offset fix).
Auto White Balance(AV).
{CLICK ON PICTURES TO ZOOM}
SHIPPING CONDITIONS
SERVICE REMOTE CONTROL BUTTON FUNCTIONS
SERVICE REMOTE CONTROL

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LG37LB1R - LG32LB1R LCD TV - TROUBLESHOOTING FLOW CHART

June 17, 2013, 8:30 pm
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TROUBLESHOOTING
No Power, Power Indicator Off.
No Video
No Sound
Click on tables to Zoom

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PANASONIC TC26LX20 - SHUT-DOWN PROBLEMS - LED BLINKING CODES

June 17, 2013, 9:27 pm
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SHUT DOWN
If a problem occurs in either the unit or power supply a protection circuit is activated and the unit shuts down. The Power indicator on the front of the unit will flash red several times indicating an error code.  Error codes vary for different models.
LED FLASHES THREE TIMES
LED FLASHES ONCE EVERY FIVE SECONDS
Check the Backlight supply voltage from the P board.
  • TC22LR30 -15 volts P2 pin 9-15 Ground pins 1-7.
  • TC26/32LX20- 120 volts P4 pins 1-2. Ground Pins 4-7
LED FLASHES 5 TIMES
  • Check the Main 9Volts Regulator Q801 on the AP Board.
LED FLASHES 8 TIMES
  • Check the Sub 5 Volts regulator, IC808.
UNIT SHUTS DOWN AND THE POWER LED IS OFF
  • Check the SOS Shutdown and over-voltage. Use the troubleshooting flowcharts for the Primary and Secondary power supply checks.
SOS SHUT-DOWN PROBLEM
  • If the unit keeps shutting down, check the SOS Shutdown line at pin 9 of connector DG2. It should be at a high level. Anodes of D877, D878, D880, D844 all should be high.
THE UNIT FAILS TO PLAY VIDEO FROM DISC
DOES NOT RECORD TO VIDEO DISC
DOES NOT RECORD AUDIO TO DISC
PRIMARY POWER SUPPLY CHECK
SECONDARY POWER SUPPLY CHECK
Click on charts to Zoom

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PDI-P23 TFT LCD TV - HOW TO DISASSEMBLE - WIRE DRESSING

June 18, 2013, 12:10 am
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DISASSEMBLY
REMOVAL OF STAND
REMOVAL OF BACK COVER
METAL PLATE AND REAR CHASSIS
REMOVE BRACKET
DISCONNECT 8 PLUGS
REMOVE THE SCREWS
REMOVAL OF LCD MODULE
WIRE DRESSING
Wire Dressing for speaker & Key control. ( No.1, acetate Tape)
Wire Dressing for Left speaker & Key control. ( No.2 acetate Tape)

Wire Dressing for Right speaker & Key control. ( No.3, acetate Tape)

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