Wednesday, September 09, 2015

SANYO LCD-46XZ10FH SERVICE MODE AND POWER SUPPLY CIRCUIT

SANYO BLU RAY

SANYO LCD-46XZ10FH 


SERVICE MODE AND POWER SUPPLY CIRCUIT 

INSTRUCTIONS FOR MAKING ADJUSTMENTS 
To start Unit adjustment
Connect power board, main board, IR board, key board correctly; then power on, AND check if the display is normal.
Using method of factory menu
1. Press the button  SOURCE
then press number buttons 2 -5 -8 - 0 to enter to factory mode.
2. Press button CH+ and CH- you can move cursor to each page of initial factory mode, press key OK can enter into adjustment menu of each page;
3. Press button  CH+ and CH- can move cursor upwards and downwards within one adjustment page
4. to adjust items use VOL- and VOL+. By Pressing  MENU button can you exit adjustment menu of one page to its factory menu
5. Press the button EXIT you can exit factory menu.
6. Press  OK button can enter into inferior factory menu;
ADC Calibrate is used for correcting ADC of VGA and Component channel.
W/B ADJUST is used for adjusting white balance;
POWER MODE is used to set up power-on mode, Standby means the,TV will be in standby state after power-on;
MEM means the TV will be in the same state before the last power-off.
Force On means the set will be working automatically after power-on, this mode is also used for factory machine aging. Default setting  will  be Standby mode unless you specified.
ISP MODE” is used to upgrade TV software from VGA port when the item is set as ON and the set is connected to ISP adjustment equipment; DDC function of VGA port will be recovered when the item is set as OFF. The value of the item can not be kept in the memory, that is to say the item is reset as OFF after power ON again.
RESET ALL is used  for  reset factory default.
FACTORY CHANNEL PRESET is used for preset factory programs
CUSTOM CHANNEL PRESET  first delete all DTV/ATV programs for factory adjustment, then preset ATV channel data according to customer order requirements. Execute the item to clear out all programs for factory adjustment before leaving factory.
MST Debug :default setting OFF is used for engineering models.
BACKLIGHT is used to adjust backlight brightness.
SSC ADJUST is used to adjust expended functions of frequency
content.
AUDIO Curve is used for adjust audio curve, without special customer requirements. RESET ALL before adjustment for the first time.
Calibrating ADC
calibration of VGA
1. Switch to VGA input
2. Enter into factory menu;
3. Move and select  ADC ADJUST and press key OK
4. Input VGA signal VG-848 Timing:856(1024×768/60 Hz)  
5.Move cursor to item MODEpress keys Up and Down to select item RGB then move cursor to item AUTO ADC and press key OK to begin adjustment automatically until adjustment.
Calibrating  YPbPr (component )
1. Switch to YPbPr .
2. Enter into initial factory menu
3. Move cursor to item ADC ADJUST and press key OK to enter into interior factory menu.
4. Input YPbPr signal (VG848 Timing 976 (720P)(Pattern 918 SMPTE Color Bar), move cursor to item MODE press keys UP and Down  to select item YPbPr HD  then move cursor to item AUTO ADC and press key ENTER to begin adjustment automatically,  success will displayed under AUTO ADC means auto-adjustment completed.
5. Input YPbPr signal (VG848 Timing 968)( 408I) (Pattern 918 SMPTE Color Bar), move cursor to item MODE
press keys “UP” and “DOWN” to select item YPbPr SD then move cursor to item AUTO ADC and press key ENTER to begin adjustment automatically success will displayed under AUTO ADC means auto-adjustment completed.
Adjusting White balance
Default COOL color temperature is 12000K, chromaticity coordinates is 272 ,278 
Default Normal color temperature is 9300K, chromaticitycoordinates is  285,293
Default Warm color temperature is 6500K, chromaticity coordinates is 323,329
How to set the white balance
Before adjusting white balance put the TV on for 30 minute.Use white balance apparatus CA-210 and switch to any channel have checked.
1. Switch to HDMI channel.
2. Enter into initial factory menu.
3. Move to item W/B ADJUST and press key Ok to enter into interior factory menu
4. Input DVI/HDMI signal VG-848 Timing: 8561024×768/60 Hz Pattern:921 16 step Gray move cursor to item MODE press keys UP and DOWN to select item HDMI1 or other HDMI channels, then move cursor to item TEMPERTURE press keys UP and DOWN to select item COOL.
5. Adjust items R GAIN,G GAIN,B GAIN to set chromaticity coordinates of the 14th step is 272,278
6. Adjust item R Offset,G Offset,B Offset  to set chromaticity coordinates of the 4th step is 272, 278
7. During adjustment,make sure that color temperature of bright step is X=272±10 Y=278±10 and color temperature of dark step is X=272±10 Y=278±10
8. Then move cursor to item COPY ALL to copy white balance data to the other channels except DTV channel
9. Check if color temperature of HDMI NORMAL and WARM meet requirements as below:
Bright step: allowable error is ±10, dark step: allowable error is ±10;
otherwise adjust items R-GAIN ,B-GAIN,R-OFF,B-OFF  to meet requirements and then save data.
10. Switch to other channels ATV, AV COMPONENT and D-SUB check if color temperature of COOL NORMAL and WARM meet requirements, otherwise adjust them respectively with 16 step Gray signal and the same adjustment method as HDMI channel’s  exit menu W/B ADJUST after adjustment and the data would be saved automatically
11. DTV channel adjustment switch to DTV channel input 16 step Gray signal, enter into factory menu, then begin adjustment followed by steps 5, 6, 7 above
 References for adjustment
Adjust B gun: adjust B gun value downwards , then coordinates of X,Y will rise.
Adjust B gun value upwards , then coordinates of X Y will descent.
Adjust R gun will effect the coordinate of X  and effect the value of Lv a little.
Adjust R gun value upwards ,then coordinate of X will rise.
Adjust R gun value downwards , then coordinate of X will descent.
Adjust G gun will effect the coordinate of Y  and effect the value of Lv a lot.
Adjust G gun value upwards , then coordinate of Y will rise;
Adjust G gun value downwards , then coordinate of Y will descent.
POWER SUPPLY CIRCUIT 
CLICK ON THE IMAGE TO ZOOM IN





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