Thursday, October 22, 2015

EMERSON LC320EM9 SERVICE MODE - HOW TO INITIALIZE TO FACTORY DEFAULT AND POWER SUPPLY CIRCUIT

EMERSON LC320EM9 

SERVICE MODE - HOW TO INITIALIZE TO FACTORY DEFAULT AND POWER SUPPLY CIRCUIT 

INITIALIZE THE LCD TELEVISION
How to do the initialization
1. Turn the power on.
2. To enter the service mode, press the service button on the service remote control unit.
To cancel the service mode, press [POWER] button on the 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.
How to convert the user remote to service remote
Cut portion of the attached remote control unit as shown In the figure

HOW TO ENTER TO SERVICE MODE OF LC320EM9
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 service menu screen will appear.
Checking the purity
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.
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.
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/DOWN ] buttons on the service remote control unit so that the color analyzer value becomes minimum.
Adjusting the white balance of the TV
Purpose:
To mix red, green and blue beams correctly for pure white.
Symptom of Misadjustment: White becomes bluish or reddish.
1. Operate the unit for more than 20 minutes.
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. DOWN] 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/ DOWN ] 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)
POWER SUPPLY CIRCUIT 
CLICK ON THE IMAGE TO ZOOM IN