Power supply [SMPS], Backlight inverter
Circuit diagrams – Connector pin voltages - Sylvania and Funai – LC195SL9B – 19
inch LCD TV
Used ICs: SA7412 – NJM4558M – PCM1782DBGR – TC4052BF
– HAT2215R01-Current control switch at Inverter.
HOW TO ENTER SERVICE MODE
Use the service remote control
unit.
Turn the power on.
Press the service button on the service remote control unit.
Turn the power on.
Press the service button on the service remote control unit.
The following screen appears.
How to make the Service remote control unit
Cut “A” portion of the attached remote control unit as shown in above Fig
Cut “A” portion of the attached remote control unit as shown in above Fig
PURITY CHECK MODE
This mode cycles through
full-screen displays of red, green, blue, and white to check for non-active
pixels.
Enter the Service mode.
Each time pressing 7 button on the service remote control unit, the display changes as follows.
Enter the Service mode.
Each time pressing 7 button on the service remote control unit, the display changes as follows.
HOW TO INITIALIZE THE TV
> Turn the power on.
> To enter the service mode, press the service button on the service remote control unit. Press [INFO] button on the service remote control unit to initialize the LCD television. "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" colour will change to green from red when initializing is complete.
> To enter the service mode, press the service button on the service remote control unit. Press [INFO] button on the service remote control unit to initialize the LCD television. "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" colour will change to green from red when initializing is complete.
[To cancel the service mode, press [POWER] button on
the remote control unit.]
SMPS [Power supply regulator] board schematic
CONNECTOR VOLTAGES
BACK-LIGHT INVERTER CIRCUIT DIAGRAM
BACK-LIGHT INVERTER PWB - TOP & FOIL SIDE VIEW
CLICK ON THE PICTURES TO MAGNIFY
