How to enter the service mode, how to initialize, How to adjust the white balance adjustment, SMPS, Back-light inverter and Audio output section circuit diagram, Exploded view - Sylvania LC320S9 LCD TV
HOW TO INITIALIZE THE LCD TELEVISION1. Turn the power on.
2. To enter the service mode, press the service button on the service remote control unit.
3. Press [INFO] button on the service remote control unit to initialize the LCD television.
4. "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is complete.
- To cancel the service mode, press [POWER] button on the remote control unit.
How
to make the Service remote control unit:
Cut “A” portion of the attached remote control unit as shown.
Cut “A” portion of the attached remote control unit as shown.
To set up the service mode
1. Use the service remote control unit.
2. Turn the power on.
3. Press the service button on the service remote control unit. The following screen appears.
Purity Check
This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.
1. Enter the Service mode.
2. Each time pressing [7] button on the service remote control unit, the display changes.
VCOM
Adjustment.
1. Operate
the unit for more than 20 minutes.
2. Set the color analyzer and bring the optical receptor to the center on the LCD-Panel surface after zero point calibration as shown above.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
3. Enter the Service mode.
4. Press [2] button on the service remote control unit.
5. Press [CH Up|Dn] buttons on the service remote control unit so that the color analyzer value becomes minimum.
2. Set the color analyzer and bring the optical receptor to the center on the LCD-Panel surface after zero point calibration as shown above.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
3. Enter the Service mode.
4. Press [2] button on the service remote control unit.
5. Press [CH Up|Dn] buttons on the service remote control unit so that the color analyzer value becomes minimum.
SMPS schematic (Click on the pictures to magnify)
Back-light inverter schematic
Audio output schematic
Exploded view
White
Balance Adjustment
To
mix red, green and blue beams correctly for pure white.
Symptom of Misadjustment: White becomes bluish or reddish.
Symptom of Misadjustment: White becomes bluish or reddish.
Operate
the unit for more than 20 minutes.
2. Input the White Raster(70%=70IRE, 25%=25IRE)
2. Input the White Raster(70%=70IRE, 25%=25IRE)
3.
Set the color analyzer to the CHROMA mode and bring the optical receptor to the
center on the LCD-Panel surface after zero point calibration as shown above.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
4. Enter the Service mode. Press [VOL. n] button on the service remote control unit and select “C/D” mode.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
4. Enter the Service mode. Press [VOL. n] button on the service remote control unit and select “C/D” mode.
5.
[CUTOFF]
Press [3] button to select “COB” for Blue Cutoff adjustment. Press [1] button to select “COR” for Red Cutoff adjustment.
[DRIVE]
Press [6] button to select “DB” for Blue Drive adjustment. Press [4] button to select “DR” for Red Drive adjustment.
6. In each color mode, press [CH Up|Dn] buttons to adjust the values of color.
7. Adjust Cutoff and Drive so that the color temperature becomes 12000°K (x= 0.272 / y=0.278 ±0.005).
Press [3] button to select “COB” for Blue Cutoff adjustment. Press [1] button to select “COR” for Red Cutoff adjustment.
[DRIVE]
Press [6] button to select “DB” for Blue Drive adjustment. Press [4] button to select “DR” for Red Drive adjustment.
6. In each color mode, press [CH Up|Dn] buttons to adjust the values of color.
7. Adjust Cutoff and Drive so that the color temperature becomes 12000°K (x= 0.272 / y=0.278 ±0.005).
