Thursday, October 29, 2015

HITACHI L46S604 - L55S604 SERVICE MODE AND POWER SUPPLY CIRCUIT

HITACHI L46S604 - L55S604 

SERVICE MODE AND POWER SUPPLY CIRCUIT 

Firmware Upgrade
Equipments and materials
1. TV remote control
2. AC power 110V/ 60Hz
3. Flash storage
Preparations
Use PC to write software to a flash storage, press “on” button to start the TV. (Take L46S603 for example)
1. Insert the flash storage into the USB port, and you will see a picture in which you can choose “YES” or “NO” (Picture1), you choose “YES”, and then the software will update automatically.
2. After software update is finished, you put out the flash storage and restart the TV.
3. Press “menu+1999+select”, check whether software version is ok.
Adjustment
1. 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. (Take L46S604 for example
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.
Color Temp. HDMI
Cold
Normal
Warm
x
272
285
313
y
278
293
329
Y
Panel Max Luminance
Panel Max Luminance
Panel Max Luminance

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 use the HDMI white balance adjustment to cover the white balance of all source modes, this method is meeting to the Zoran 785 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. (Take L46S604 for example)
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 > Color Temp adjust;
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 R Offset 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=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.
NOTE 1:
If you choose to do EEPROM Initialization (EEPROM Init), you MUST write down all White Balance values before doing so. These values will be reset to a default value.
All white balance factory adjustments will be LOST. It can be done as a NOTE anywhere in same page, please.
NOTE 2:
Activating Reset to Default Settings (Reset to Def) will zero BOTH hour counters, the one for back light time and the one for Total time.
 POWER SUPPLY CIRCUIT 
L46S604

 L55S604

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