HITACHI - L42A403 SERVICE MODE AND POWER SUPPLY CIRCUIT
SERVICE MODE
HOW TO ENTER TO SERVICE MODE
In
the TV mode adjust volume to zero, press menu key and then press number key 1
> 9 > 9
> 9. It will achieve the factory mode. Select the item of
White Balance and press right key to enter it. The factory menu follow
picture:
Change TV, press the item “Current Source” to
Component mode and change signal to 1080i mode, press the item “Auto Color”;
Change TV, press the item “Current Source” to PC mode and change signal to PC
TIMING 137(1024X768) Pattern 147 (16 Grays), press the item “Auto Color”.
White Balance, Luminance Adjustment
Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. Before started adjust white balance, please set the Ca210 Channel to 05 Channel and set it’s mode to xyLv mode.
Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. Before started adjust white balance, please set the Ca210 Channel to 05 Channel and set it’s mode to xyLv mode.
Note: The tolerance of
the Cold color coordinates should be less than ± 10; The tolerance of the
Normal color coordinates should
be less than ± 20; The tolerance of the Warm color coordinates should be less
than ± 20;
How to setting the Ca210 channel, you can
reference to Ca210 user guide or simple use the “Memory CH” up or down to set
the channel to 05 channel, and use the “Mode” key to set the mode to xyLv. Following
is the procedure to do white-balance adjust
Note: We can only the
HDMI white balance to cover the white balance of all source modes, this method
is meeting to the Zoran 775
software.
HDMI mode:
A. In the TV mode adjust volume to zero, press menu key and then press number key 1 > 9 > 9 > 9. It will achieve the factory mode. Select the item of White Balance and press right key to enter it. The factory menu follow picture:
A. In the TV mode adjust volume to zero, press menu key and then press number key 1 > 9 > 9 > 9. It will achieve the factory mode. Select the item of White Balance and press right key to enter it. The factory menu follow picture:
B. before to adjust the white balance, please
press the factory mode OSD of “Reset” to reset all whit balance factory
setting.
In the White Balance you can adjust 8 items.
1> R Offset, G Offset, B Offset > R, G, B Offset adjust.
2> R Gain, G Gain, B Gain > R, G, B Gain adjust.
3> ZR-Bright adjust;
4>ZR-Contrast adjust;
5>ZR-T ÆColot Temp adjust;
In the White Balance you can adjust 8 items.
1> R Offset, G Offset, B Offset > R, G, B Offset adjust.
2> R Gain, G Gain, B Gain > R, G, B Gain adjust.
3> ZR-Bright adjust;
4>ZR-Contrast adjust;
5>ZR-T ÆColot Temp adjust;
C. Gain adjustment:
a. Adjust Cool color-temperature:
1. Set the pattern generator to pattern 104 or 0 IRE pattern. And adjust the Item “ZR-Bright” to min luminance.
2. Switch the Ca210 to xyLv-mode (with press “MODE” button)
3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)
4. The LCD-indicator on Ca210 will show x =272, y =278, Lv can adjust to max luminance.
5. Use the item Roffset and B Offset adjust to Adjust black balance: use 20 IRE(Pattern 190) signal,and adjust the black balance,until the Ca210 show x =272, y =278.
6. Use the item R Gain and B Gain to adjust white balance: use 100 IRE (Pattern 105) signal, and adjust the white balance, until the Ca210 show x =272, y =278.
7. Adjust item “ZR-Contrast” to check color temperature is saturation or not: Add by 7 steps and then to adjust the item R Gain and item B Gain to check the color temperature is saturation or not, until is saturation.
8. Enter the item “Color Temp” to select another color temperature to adjust.
a. Adjust Cool color-temperature:
1. Set the pattern generator to pattern 104 or 0 IRE pattern. And adjust the Item “ZR-Bright” to min luminance.
2. Switch the Ca210 to xyLv-mode (with press “MODE” button)
3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)
4. The LCD-indicator on Ca210 will show x =272, y =278, Lv can adjust to max luminance.
5. Use the item Roffset and B Offset adjust to Adjust black balance: use 20 IRE(Pattern 190) signal,and adjust the black balance,until the Ca210 show x =272, y =278.
6. Use the item R Gain and B Gain to adjust white balance: use 100 IRE (Pattern 105) signal, and adjust the white balance, until the Ca210 show x =272, y =278.
7. Adjust item “ZR-Contrast” to check color temperature is saturation or not: Add by 7 steps and then to adjust the item R Gain and item B Gain to check the color temperature is saturation or not, until is saturation.
8. Enter the item “Color Temp” to select another color temperature to adjust.
b. Adjust Normal temperature:
1. Set the pattern generator to pattern 104 or 0 IRE pattern. Adjust the Item “ZR-Bright” value and can adjust to min luminance
2. Switch the Ca210 to T△uvLv-mode (with press “MODE” button)
3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)
4. The LCD-indicator on Ca210 will show T=9300K.
5. Adjust the Color Temp item: Normal, until Ca210 indicator reached the value T=9300k.
c. Adjust Warm color-temperature:1. Set the pattern generator to pattern 104 or 0 IRE pattern. Adjust the Item “ZR-Bright” value and can adjust to min luminance
2. Switch the Ca210 to T△uvLv-mode (with press “MODE” button)
3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)
4. The LCD-indicator on Ca210 will show T=9300K.
5. Adjust the Color Temp item: Normal, until Ca210 indicator reached the value T=9300k.
1. Set the pattern generator to pattern 104 or 0 IRE pattern. Adjust the Item “ZR-Bright” value and can adjust to min luminance
2. Switch the Ca210 to T△uvLv-mode (with press “MODE” button)
3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)
4. The LCD-indicator on Ca210 will show T=6500K.
5. Adjust the Color Temp item: Warm, until Ca210 indicator reached the value T=6500k. Press “Exit” button on remote control to quit from factory mode.
POWER SUPPLY CIRCUIT
