SANYO LCD-40E40F SERVICE MODE AND POWER SUPPLY CIRCUIT

SANYO LCD-40E40F SERVICE MODE AND POWER SUPPLY CIRCUIT

SANYO LCD-40E40F 

SERVICE MODE AND POWER SUPPLY CIRCUIT 

Adjustment instruction

SERVICE MODE
At any input source then press the “Mute” and “ Menu (key pad) to enter factory mode
During Factory menu, if “MENU” key is pushed, system will exit factory mode.
Source Calibration
Set the signal generator to input sources Video3 (Component) on LCD-TV; ASTRO-859 signal setting to720P/60 (PG2 mode Timing 940 and Pattern 924 100% Color Bar.)

Entering into factory Mode: Press up or down key of remote control to select “Auto Calibration”, Press RIGHT key to enter the item.

-> Source calibration performed automatically when finished that will show OK.

Repeat step  to do VGA input sources,
ASTRO-859 signal setting to1024X768 60Hz. (PG2 mode: Timing 963 and Pattern 924 100% color bar.)

Color Temperature Adjustment & Check
Set the signal generator to RGB, 1024*768, 60HZ(ASTRO-859: PG1 856), Level:0.56V(80%). Full white pattern.
Press up or down key of remote control to select “Cool”, Press ENTER key to enter the item. RGAIN, GGAIN, BGAIN, ROFFSET, GOFFSET, BOFFSET, drive values are set for COOL, NORMAL, and WARM independent

Select Cool
Step 1.First Turning Gain parts of RGB.
(1) Cool spec.:
x= 0.267±0.030
y= 0.271±0.030
(2) If the x and y value are larger than specification,
Decrease R GAIN drive from default value.
Increase B GAIN drive from default value.
(3) If the x or y or both x and y value is/are smaller than specification.
Decrease B GAIN drive from default value
(4) According to a x and y value ,following adjustment of (4)-1 or (4)-2.
(4)-1 If x value is higher than spec
Decrease R GAIN drive from default value.

Increase B GAIN drive from default value.
(4)-2 If y value is higher than spec,
Decrease B GAIN drive from default value
Step 2.When finsh Gain parts, then turning OFFSET parts
Set the signal generator to RGB, 1024*768, 60HZ(ASTRO-859: PG2 963), Level:0.217V(31%).
Full white pattern.
(1) Cool spec.: (Same as the Gain session )
x= 0.267±0.030
y= 0.271±0.030
(2) If the x and y value are larger than specification,
Decrease R OFFSET drive from default value.
Increase B OFFSET drive from default value.
(3) If the x or y or both x and y value is/are smaller than specification.
Decrease B OFFSET drive from default value
(4) According to a x and y value, please following adjustment of (4)-1 or (4)-2.
(4)-1 If x value is higher than spec
Decrease R OFFSET drive from default value.
Increase B OFFSET drive from default value.
(4)-2 If y value is higher than spec,
Decrease B OFFSET drive from default value
Step 3.When finsh OFFSET parts, then recheck Gain parts .unitl Both of them meet the target specification

Increase B GAIN drive from default value.
(4)-2 If y value is higher than spec,
Decrease B GAIN drive from default value
Step 2.When finsh Gain parts, then turning OFFSET parts
Set the signal generator to RGB, 1024*768, 60HZ(ASTRO-859: PG2 963), Level:0.217V(31%).
Full white pattern.
(1) Cool spec.: (Same as the Gain session )
x= 0.267±0.030
y= 0.271±0.030
(2) If the x and y value are larger than specification,
Decrease R OFFSET drive from default value.
Increase B OFFSET drive from default value.
(3) If the x or y or both x and y value is/are smaller than specification.
Decrease B OFFSET drive from default value
(4) According to a x and y value, please following adjustment of (4)-1 or (4)-2.
(4)-1 If x value is higher than spec
Decrease R OFFSET drive from default value.
Increase B OFFSET drive from default value.
(4)-2 If y value is higher than spec,
Decrease B OFFSET drive from default value
Step 3.When finsh OFFSET parts, then recheck Gain parts .unitl Both of them meet the target specification
4-2.4. Select [NORMAL]
NORMAL spec.:
x=0.281±0.030
y=0.288±0.030
Adjust R drive (RED) or B drive (BLUE) to set x and y above.
4-2.5. Select [WARM]
WARM spec.:
x=0.301±0.030
y=0.31±0.030
Adjust R drive (RED) or B drive (BLUE) to set x and y above.

4-2.6. Exit Factory Mode:
After finish adjusting color temperature,press [MENU] to exit factory mode.

Items of Factory menu
Vendor may customize design and add adjustment items Factory menu as far as all required items are included.
Press up and down key can move high light item from Cool ->Warm -> Normal ->Shipping-> NV clear-> Full
Power -> Auto Calibration -> RF Burn In -> SAP mode->Reset.
The NVRAM Clear and Reset to Default items will have a check dialog “yes or no” to do or not.
Push “OK” key can select high light item function. (Press right key can adjust value)
Display Board name, firmware version, Panel name and released date on bottom.

Cool
Press up or down key can select high light item function.
Press OK key to enter the item.
Following data for color temp shall be edited manually.
-R, G, B data for each preset.

-Press “Up” or “Down” key to select “R”, “G”, “B” Gain and Offset item
-Press “Left” or “Right” key to set the “R”, “G”, “B” Gain and Offset value.
- Press “MENU” or “BACK” item to exit to factory mode

Warm
Press up or down key can select high light item function.
Press OK key to enter the item.
Following data for color temp shall be edited manually.
-R, G, B data for each preset.
-Press “Up” or “Down” key to select “R”, “G”, “B” Gain and Offset item
-Press “Left” or “Right” key to set the “R”, “G”, “B” Gain and Offset value.
- Press “MENU” or “BACK” item to exit to factory mode

Normal
Press up or down key can select high light item function.
Press OK key to enter the item.
Following data for color temp shall be edited manually.
-R, G, B data for each preset.
-Press “Up” or “Down” key to select “R”, “G”, “B” Gain and Offset item
-Press “Left” or “Right” key to set the “R”, “G”, “B” Gain and Offset value.

-Press “MENU” or “BACK” item to exit to factory mode

Shipping
Press up or down key can select high light item function
Press “Left” & “Right” key to select the item. Default set in Factory mode
Following shipping area to select the item(ME)

NVRAM Clear
Initialize program’s default values to NVRAM for following adjustment items accuracy.
In factory mode it is the first and important step to make sure all values are default value and correct.
- Reset settings: Gamma table, Channel table (Favorite channel, Channel label etc.), Model table (H/V Position, Clock, Phase), Source dependent setting (Contrast, Brightness etc.), Common setting (Volume, Language etc.), Parental Control (Rating, Password etc).
To avoid a mistake initial process after factory setting is done. This item will have a check dialog “yes or no” to do the initial or not.
NOTICE:
This item just enabled in PC input and after this item is processed then the DUT needs to be powered off then AC powered off.

Software instruction
Update S/W tool
Tools setting.
Connector to PC and VTV_T42006 use USB cable

Connect VTV_L32020 and VTV_T42006 use special VGA cable.

Don’t push blue Key.

SoftWare seeting.
1. press Option to check ISP mode, Packet size and Default baud rate then press OK
2. select communication COM port.

3. press Select File then select update F/W file.

5.start update F/W, there has two method to start update F/W
(1)keep push Channel up key and turn on the power.
(2)press Menu key then red key then blue key then Power key to update F/W.

6.Erasing EE PROM

7.Build in F/W on the EE PROM.

8. update success.

POWER SUPPLY CIRCUIT 

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