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HOW TO ENTER SERVICE MODE TO TCL L24D10 MT23-AP LCD TV

August 27, 2014, 12:39 pm
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SERVICE MODE [FACTORY MODE]
Method-1
In any sources, enter to the menu, move cursor to Contrast item, and then press 9,7,3,5 keys continuously on the remote control.
The factory menu will appear as shown below.
Method-2
In the “Production” of the factory menu, if set “FacMode” and “FacHotkey” as “ON”.
There will be a “P” on the left corner of the panel.  
In this status, you can enter the factory menu by pressing the “Return” key of the remote control.
Note:  In the factory menu, you can return to the previous menu by the “Menu” key of remote control.
To exit the factory mode.
Press the “Exit” key on the remote control.
Press the “Menu” key of remote control to go back to the previous menu.  If the hotkey of factory menu is “ON”, the status cannot be changed by turn off the TV. You need to change the hotkey of the factory to “OFF”
SHOP INT should be done at the last alignment if NVM is set “OK”, you do not need to do this.

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SONY HCD-EX660Z/EX880Z/EX990Z - CIRCUIT DIAGRAM

August 27, 2014, 9:50 pm
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Used ICs_ STR-Y6763_MM1431_SSC6700_BA4558F_BD00G0WEFJ-SE2_SL-8008TM-TLS_BA17807FP-E2_KIA7809AF_PST8229UL_SSC6700_TAS5611APHDR(Power Amp)
AMP SMPS BOARD
AMP SMPS PWB
POWER AMP MODULE SCHEMATIC
CLICK ON THE SCHEMATICS TO ZOOM IN

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CTV CIRCUIT DIAGRAM- USING LA76931 IC

August 28, 2014, 12:22 am
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CIRCUIT DIAGRAM_FULL [CLICK ON THE SCHEMATIC TO MAGNIFY]

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AIWA XR HG5MD - MD CD STEREO SYSTEM _ CIRCUIT DIAGRAM

August 28, 2014, 4:58 am
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SCHEMATIC DIAGRAMS [Click on the Schematics to Magnify]
POWER
FRONT BOARD
TUNER SECTION
MAIN

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HOW TO remove the MD mechanism & CAUTIONS WHEN ASSEMBLY - AIWA XR HG5MD - MD / CD STEREO SYSTEM.

August 28, 2014, 8:35 am
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REMOVAL OF THE MD MECHANISM & CAUTIONS WHEN ASSEMBLEY
BASIC TAPE MECHANISM : 2ZM-3MK2 PR4NM
BASIC CD MECHANISM : AZG-1 ZD8RMDM
BASIC MD MECHANISM : AZG-7 DM
1. Remove the four screws (BVT2+3-10 W/O SLOT) of A.  Remove AZG-4 in the direction of the arrow.
2. Remove the four screws (VTT+3-4) of B.  Set the mechanism in the PLAY state.  Remove the HLDR, SHIELD TOP in the direction of the arrow.
3. Remove the two screws (S-SCREW, MD TF) of C.  Remove the two screws (S-SCREW MD T) of D.  Remove the four FFCs and remove the MD MECHANISM.
4. Remove the screw (VW+1.7-5) of A.  Remove the HEAD, OWH.  Remove the two screws (VTT+2-3) of B.  Remove the PLATE ASSY, SLIDE L and the PLATE, SLIDE R. in the direction of the arrow.
5. Move the ZZG-D in the direction of arrow (a). While pushing the BOSS in the direction of arrow (b), remove it in the direction of arrow (c).
6. Remove the CAM, LOAD in the direction of the arrow.
CAUTIONS WHEN ASSEMBLY
1. Assembling the CAM, LOAD
Move the LEVER ASSY, CAM in the direction of the arrow as far as it can go.  Rotate the CAM, LOAD so that its positioning hole is moved as close as possible to the shaft of the LEVER, SW H.  Attach the CAM, LOAD so that it engages with the teeth of the GEAR, IDLER2.
2. Assembling the PLATE ASSY, SLIDE L
Align the shaft of the PLATE ASSY, SLIDE L with the arrow-marked position of the CAM, LOAD.
CLICK ON THE PICTURES TO MAGNIFY

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SAMSUNG LCD-TV LE22B35*** SERVICE MODE – FACOTRY MODE - FACTORY DATA.

August 28, 2014, 11:18 pm
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TO ENTER FACTORY MODE
* To enter ‘Service Mode’ Press the remote -control keys in this sequence:
* If you do not have Factory remote – control [Power OFF> INFO> MENU> MUTE> POWER ON]
HOW TO ACCESS SERVICE MODE
Using the Customer Remote
  1. Turn the power off and set to stand-by mode
  2. Press the remote buttons in this order; POWER OFF - INFO - MUTE - POWER ON to turn the set on.
  3. The set turns on and enters service mode. This may take approximately 20 seconds.
  4. Press the Power button to exit and store data in memory.
If you fail to enter service mode, repeat steps 1 and 2 above.
Initial SERVICE MODE DISPLAY State
HOW TO ENTER HIDDEN FACTORY MODE
# into the factory mode
# move the tap to Advanced
# key input : 0 + 0 + 0 + 0
** hidden menu : Advanced.
BUTTONS OPERATION WITHIN THE SERVICE MODE
* Direction Keys ▲/▼à Item Selection by Moving the Cursor.
* Direction Keys ◄/►à Data Increase / Decrease for the Selected Item.
* Source à Cycles through the active input source that is connected to the unit.
FACTORY DATA
CLICK ON THE TABLE TO MAGNIFY

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HOW TO DISASSEMBLE - SAMSUNG LE22B35*** LCD TVs [Chassis: N65D]

August 29, 2014, 11:18 am
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DISASSEMBLE PROCEDURE
Disconnect the LCD TV from the power source before disassembly.  Never use metal instruments to pry apart the cabinet.
* Place the TV face down on cushioned tale. Remove 3 screws from the back cabinet.
* Lift up the Stand.
* Remove the 4Screws of main board and 7 Screws of IP Board And remove Speaker and Harness.
Lift up the panel.
Reassembly procedures are in the reverse order of disassembly procedures.
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SAMSUNG LE22B35*** LCD TV NO POWER TROUBLESHOOTING

August 29, 2014, 10:54 pm
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NO POWER 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 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:
> Check the internal cable connection status inside the unit.
> Check the fuses of each part. - Check the output voltage of SMPS. - Replace the Main Board.

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SAMSUNG LCD TV LE22B35*** - TROUBLESHOOTING - NORMAL AUDIO - NO PICTURE

August 30, 2014, 1:04 am
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No Video (Analogue PC signal) / No Video (HDMI - Digital Signal)
NO VIDEO_ANALOGUE PC SIGNAL
* Audio is normal but no picture is displayed on the screen.
> Check the PC source
> Check the Arsenal, SEMS12
> 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.
> Check the HDMI source.
> Check the HDMI switch, Check the SEMS12
> This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

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LG 21FU3RL 21FU3RL-T3 – SCHEMATIC (Circuit Diagram) - 21" CTV

August 30, 2014, 10:26 pm
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ICs used:(LV762xx - Chroma)_LC75024E_W6553A (W6554A)-Power Switching_LA72730_STV9326_TDA8145_LA72702_(LA42101/LA4202L/LA42102N –Audio Output)
Receiving System.
PAL BG,DK,I / NTSC M(AV3.58/4.43) > China/ Indonesia/ Thai/ Vietnam.
PAL BG,DK,I / NTSC M(AV3.58/4.43), SECAM DK > CIS
PAL BG,DK,I / NTSC M(AV3.58/4.43), SECAM BG,DK,L > Asia/ Middle East/ Africa.
SCHEMATIC[CLICK ON THE SCHEMATIC TO ZOOM IN]

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HOW TO ENTER SERVICE MODE - JVC AV-21JT5EU / AV-21JT5EBU / AV-14JT5EU / AV-14JT5EBU

August 31, 2014, 12:40 am
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JVC AV-21JT5EU / AV-21JT5EBU / AV-14JT5EU / AV-14JT5EBU
ICs USED: 24LC16_TDA6103Q_STV2238D_ST92195_TDA1771_STV8131_DPM001T1A
SERVICE MODE
HOW TO ENTER AND EXIT FROM SERVICE MODE
* Press the “Muting” and “recall” key of the remote control at the same time to display the service menu screen. [NB: You should have its original remote control to enter the service mode.  No universal remote control can be used for this purpose]
* To exit from service mode, turn off the power switch.
SERVICE MODE ADJUSTMENTS
* Select the setting item you want to change with “P▲/▼” key on the remote control unit.  The item you have selected will be indicated by yellow on the display.
* To change the set values, use ◄/► key on the remote control.  When setting is completed, turn off the power.  The changed values are stored in the memory.
Service mode screen
SCHEMATIC - FULL
CLICK ON THE PICTURES TO ZOOM IN

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ONIDA 21_29 OXYGEN THUNDER CTV SMPS SCHEMATICS (Circuit Diagrams)

August 31, 2014, 9:41 am
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This set has two SMPS sections.  One for its main circuit and the other for the Sub-woofer circuit.
MAIN POWER_SMPS SCHEMATIC
SUB-WOOFER POWER [SMPS]
CLICK ON THE SCHEMATICS TO MAGNIFY

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HOW TO ENTER SERVICE MODE_ONIDA 21_29 OXYGEN THUNDER CTV – MAIN and VIDEO OUTPUT SCHEMATIC

August 31, 2014, 10:02 am
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SERVICE MODE
* Enter into the service mode by pressing VSM + Display buttons on the remote control.
** If any changes are done in the settings, the set should be switched off by mains ON/OFF & switched ON again.
MAIN CIRCUIT_HORIZONTAL-VERTICAL SCAN OUT
VIDEO OUTPUT (CRT BASE CARD)_SCHEMATIC
CLICK ON THE SCHEMATICS TO ZOOM IN

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SONY VGN-C SERIES PCs - HOW TO REMOVE KEYBOARD AND PALM-REST

September 1, 2014, 6:03 am
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KEYBOARD REMOVAL
* Remove the screw.
** Release the 4 keyboard clips
*** Rotate the keyboard towards the front of the system.
**** Disconnect the keyboard cable; and remove.
PALM-REST REMOVAL
* Remove the 11 screws from the bottom of the unit. (Note the three screws underneath the odd bay are shorter)
** Disconnect the speaker cable, power switch cable and the touch-pad cable.  Remove the 3 screws. [Note that one is significantly longer than the rest]
*** Lift the palm-rest up; gently releasing the de-tents.

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COLOR TV CIRCUIT DIAGRAM - USING IC TDA935X/6X/8X - SYSCON CHROMA Jungle

September 2, 2014, 1:39 am
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ICs used: TDA935X/6X/8X_AT24C08_TDA7449_TDA8356/N6_TDA7057AQ_STR-G5653/F6654_HEF4053_TDQ-5B6M (Tuner) [Service Mode]
The super chips TDA935X/6X/8X are good in pins compatibility. Differences among them are shown as follows.
TDA9351（48K）PAL/NTSC/SECAM+1 PAGE TELETEST
TDA9350（48K）PAL/NTSC+1 PAGE TELETEST
TDA9361（64K）PAL/NTSC/SECAM+10 PAGE TELETEST
TDA9360（64K）PAL/NTSC+10 PAGE TELETEST
TDA9380（32K）PAL/NTSC
TDA9387（32K）NTSC
The various versions of theTDA935X/6X/8X PS/N2 series combine the functions of a TV signal processor together with a Controller and US Closed Caption decoder. Most versions have a Teletext decoder on board. The Teletext decoder has an internal RAM memory for 1or 10 page text. The ICs are intended to be used in economy television receivers with 90 and 110 picture tubes. The ICs have supply voltages of 8 V and 3.3 V and they are mounted in S-DIP envelope with 64 pins.
CIRCUIT DIAGRAM_Full
PWB_MAIN
PWB_CRT
CLICK ON THE PICTURES TO MAGNIFY 
Supply Voltage Adjustment
Caution: +B voltage has close relation to high voltage. To prevent X-ray radiation, set +B voltage to the rated voltage.
Make sure that the supply voltage is within the range of the rated value.
Connect a digital voltmeter to the +B voltage output terminal of the TV set. Power on the TV and set the brightness and sub-brightness to minimum.
Regulate voltage adjustment components on the power PCB to make the voltmeter read 115±1V.
SERVICE MODE
* Set the volume to 0.
* Then press and hold the MUTE button on the remote control, and press the MENU button on the TV to enter the SERVICE mode. (In this case, the S mode cannot be stored in the EEPROM. 
* To exit from the S mode, turn off the TV set)
* After entering the S mode, Red “S”is displayed on the upper centre of the screen and MENU-1 is default. Use the POS+/- buttons to highlight an adjustment and the VOL+/- buttons to adjust it. The adjusted data are immediately output and stored in the EEPROM.
* To write in logo, use the ▲/▼↑buttons to highlight an adjustment and the ◄/► buttons to adjust.
Caution:The user service mode adjustment can be changed only when service personnel adjust the whole set data during servicing. As the control data have dramatic effects on functions and performance of the TV, service personnel should not tell user how to enter the SERVICE mode to avoid improper data settings.

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SAMSUNG WS32Z316V - SMPS_VERTICAL & HORZONTAL SCAN SCHEMATICS

September 2, 2014, 11:24 pm
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ICs used: STR-X8750F_PC123Y_FMG-G2CS / SLA1004_MC4558C_LA7845& FUH29V002 (FBT)
DEFLECTION SCHEMATIC
SMPS SCHEMATIC
CLICK ON THE SCHEMATICS TO ZOOM IN

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LG RP29CC25 CTV SCHEMATIC {Circuit Diagram) Full

September 3, 2014, 1:44 am
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ICs Used: SDA9489X_SDA9489X_VCT3801 / 3804 / 3834_LA7845_STR-F6456R / STR-F6654R_TDA6109JF / TDA6107JF_CXA2040AQ_TDA2006 & 6174VMCBO 01R (FBT)
SCHEMATIC_Full  (Click on the schematic to Magnify)

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HOW TO DOWNLOAD SOFTWARE - LG 29FS2AMB/ANX - 29FS2AMB/ANX-ZE CTV

September 3, 2014, 2:54 am
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LG 29FS2AMB/ANX - 29FS2AMB/ANX-ZE - Firmware Update Procedure
SOFTWARE DOWNLOAD
1 Connect JIG to P004 of Digital Board.
2 Connect SCL line of JIG Switch to Ground.
3 Turn on JIG and supply 6V to Digital Board. Terminate the SCL of clause (2) by using Switch.
4 After termination of SCL line, wait for 3 second.
5 Execute ‘vct69xyp_main_graphic.vi2c’ program.
6 Click the TVT button.
7 Double click right check box of ‘Boot loader Version‘ line, and then check to change to 40 from 0
8 After checking ‘40’, Click the Erase Flash button.
9 Double click ‘Edit Window’
10 Click the file select button of Name to select file.
11 Select necessary file.
12 Download the file with ‘OK’ button.
13 Check download process (about 30~40 sec.)

 CLICK ON THE PICTURES TO ZOOM IN


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TOSHIBA DVD PLAYER SD 5061 / SD 5091 - POWER SUPPLY - REMOTE CONTROL - SCHEMATICS

September 3, 2014, 9:42 pm
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REMOTE CONTROL _SCHEMATIC
POWER SUPPLY [SMPS] - SCHEMATIC
CLICK ON THE SCHEMATICS TO MAGNIFY

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AOC 2241PA - LCD MONITOR - POWER and BACK-LIGHT INVERTER SCHEMATIC

September 5, 2014, 11:41 am
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SMPS SCHEMATIC
BACK-LIGHT INVERTER SCHEMATIC
CLICK ON THE SCHEMATICS TO ZOOM IN

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