EMERSON LD195EM8
SERVICE MODE AND POWER SUPPLY CIRCUIT
How to set up the service mode:
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 as shown in Fig. 1.
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 as shown in Fig. 1.
Auto Calibration [Component]
Purpose: To bring the color adjustment of each component into standard alignment.
Symptom of Misadjustment: If this adjustment is incorrect, component signals do not reproduce the corresponding color.
1. Input 1080i 100% Color Bar signal.
2. Enter the service mode.
3. To enter the Auto Calibration adjustment mode, press [6] button on the service remote control unit.
4. To start auto adjustment, press [1] button on the service remote control unit.
- In the auto adjustment mode, “Please wait” appears on the screen.
- Upon completion, “OK” appears on the screen.
Purpose: To bring the color adjustment of each component into standard alignment.
Symptom of Misadjustment: If this adjustment is incorrect, component signals do not reproduce the corresponding color.
1. Input 1080i 100% Color Bar signal.
2. Enter the service mode.
3. To enter the Auto Calibration adjustment mode, press [6] button on the service remote control unit.
4. To start auto adjustment, press [1] button on the service remote control unit.
- In the auto adjustment mode, “Please wait” appears on the screen.
- Upon completion, “OK” appears on the screen.
Auto Calibration [DTV]
Purpose: To bring the color adjustment of DTV into standard alignment.
Symptom of Misadjustment: If this adjustment is incorrect, DTV signals do not reproduce the corresponding color.
1. Enter the service mode.
2. To enter the Auto Calibration adjustment mode, press [6] button on the service remote control unit.
3. To start auto adjustment, press [2] button on the service remote control unit.
- In the auto adjustment mode, “Please wait” appears on the screen.
- Upon completion, “OK” appears on the screen.
Purpose: To bring the color adjustment of DTV into standard alignment.
Symptom of Misadjustment: If this adjustment is incorrect, DTV signals do not reproduce the corresponding color.
1. Enter the service mode.
2. To enter the Auto Calibration adjustment mode, press [6] button on the service remote control unit.
3. To start auto adjustment, press [2] button on the service remote control unit.
- In the auto adjustment mode, “Please wait” appears on the screen.
- Upon completion, “OK” appears on the screen.
Auto Calibration [PC]
Purpose: To bring the color adjustment of PC into standard alignment.
Symptom of Misadjustment: If this adjustment is incorrect, PC signals do not reproduce the corresponding color.
1. Input XGA 100% White signal.
2. Enter the service mode.
3. To enter the Auto Calibration adjustment mode, press [6] button on the service remote control unit.
4. To start auto adjustment, press [3] button on the service remote control unit.
- In the auto adjustment mode, “Please wait” appears on the screen.
- Upon completion, “OK” appears on the screen.
Purpose: To bring the color adjustment of PC into standard alignment.
Symptom of Misadjustment: If this adjustment is incorrect, PC signals do not reproduce the corresponding color.
1. Input XGA 100% White signal.
2. Enter the service mode.
3. To enter the Auto Calibration adjustment mode, press [6] button on the service remote control unit.
4. To start auto adjustment, press [3] button on the service remote control unit.
- In the auto adjustment mode, “Please wait” appears on the screen.
- Upon completion, “OK” appears on the screen.
The following adjustment normally
are not attempted in the field. Only when replacing the LCD Panel then adjust as a preparation. White Balance Adjustment
[Video]
Purpose: To mix red, green and blue beams correctly for pure white.
Symptom of Misadjustment: White becomes bluish or reddish.
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, 23%=23IRE).
2. Input the White Raster(70%=70IRE, 23%=23IRE).
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.
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/D1” mode.
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/D1” mode.
5. [CUTOFF]
Press [1] button to select “COR” for Red Cutoff adjustment. Press [3] button to select “COB” for Blue Cutoff adjustment.
[DRIVE]
Press [4] button to select “DR” for Red Drive adjustment. Press [6] button to select “DB” for Blue 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 11000°K (x= 0.279 / y= 0.272 ±0.005).
Press [1] button to select “COR” for Red Cutoff adjustment. Press [3] button to select “COB” for Blue Cutoff adjustment.
[DRIVE]
Press [4] button to select “DR” for Red Drive adjustment. Press [6] button to select “DB” for Blue 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 11000°K (x= 0.279 / y= 0.272 ±0.005).
INITIALIZE THE LCD TV/DVD
DVD Section
1. Press [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order.
2. Press [CLEAR] button on the remote control unit. When “OK” appears on the screen, the factory default will be set.
3. To exit this mode, press [CH. UP / DOWN]
1. Press [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order.
2. Press [CLEAR] button on the remote control unit. When “OK” appears on the screen, the factory default will be set.
3. To exit this mode, press [CH. UP / DOWN]
LCD TV Section
1. Turn the power on.
2. To enter the service mode, press the service button on the service remote control unit.
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 service remote control unit.
3. Press [DISPLAY] button on the service remote control unit to initialize the LCD television.
4. "FF" will appear in the upper left of the screen. "FF" color will change to red from white when initialzing is complete.] button to go to TV mode, or press [POWER] button to turn the power off.
3. Press [DISPLAY] button on the service remote control unit to initialize the LCD television.
4. "FF" will appear in the upper left of the screen. "FF" color will change to red from white when initialzing is complete.] button to go to TV mode, or press [POWER] button to turn the power off.
POWER SUPPLY SCHEMATIC
Power Supply board
Power Supply board
CLICK ON THE IMAGE TO ZOOM IN
