HITACHI L42A403
SERVICE MODE AND POWER SUPPLY CIRCUIT
Adjustment
ADC adjustment
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.
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
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:
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.
Before to adjust the white balance,
please press the factory mode OSD of “Reset” to reset all white 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;
Gain adjustment:
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.
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.
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 TuvLv-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 TuvLv-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.
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 TuvLv-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.
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 TuvLv-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
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