Friday, November 13, 2015

SANYO LCD-42XR9DKH SERVICE MODE AND POWER SUPPLY CIRCUIT

SANYO BLU RAY

SANYO LCD-42XR9DKH

 SERVICE MODE AND POWER SUPPLY CIRCUIT 

Service Menu System
Quick operation is needed to enter Service Mode.
How to enter the Service Menu
1. Press and hold the MENU button on Side Controls.
2. Keep pressing the MENU
button and press “1” button on the remote control, and the FACTORY MENU will be displayed.
How to select the service item and adjust data: To adjust data:
1) Select “DATA” line by pressing UP or DOWNbutton.
2) Press LEFT/RIGHTbutton to adjust data.
To exit service mode
Press MENU button to exit service mode.
Note: The all adjusted data in service mode will be memorized into EEPROM automatically.
DATA INITIALIZATION 
This adjustment is controlled by the CPU  through the IIC Bus Data Line in the chassis, and those adjustment data are memorized the memory. Therefore, Main board or the memory IC  is replaced, these data will be disappeared. Readjust should be made. Initial data is provided in the CPU ROM, when the memory IC  is replaced with new one. CPU ROM data is loaded into the memory. Initial data is provided to operating the monitor basically. For operating the monitor quality performance,
further adjustment is required following chassis electrical adjustment.
1. Receive good quality signal.
2. Enter the Service Mode.
3. Confirm data value to be the same as the Service Adjustment Data Table. If it is different, change to correct data
4. Exit the Service Mode
White balance Adjustment
Pattern
White Pattern 100% (in AV mode).
Condition
Picture Mode: STANDARD
Color Temperature: NORMAL
Aging Time: More than 10 minutes
Adjustment
1. Enter the Service Mode.
2. Select "Source ALL" by pressing UP/DOWN button, and select "Properties White" by pressing LEFT/RIGHT  button.
3. Set R,G,B value to “FF” by pressing NUMERIC buttons.
To adjust Red : Press 1 (data value up) and 4 (data value down).
To adjust Green : Press 2 (data value up) and 5 (data value down).
To adjust Blue : Press 3 (data value up) and 6 (data value down).
4. Decide one item in three items to a fixed value (For example, let R be fixed value), select item of other 2 colors
(Example, G or B), and adjust to produce a normal black and white picture in highlight areas.
(Note: At this time, Adjust the other 2 colors data less than fixed data.)
5. Exit the Service Mode.
After adjustment, confirm white balance again by normal picture. 
SAFETY NOTES
1:Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the
cabinet or on the chassis.
2:When replacing a chassis in the cabinet, always be certain that all the protective devices are installed properly, such as, control knobs, adjustment covers or shields, barriers, etc..
DO NOT OPERATE THIS TELEVISION WITHOUT THE PROTECTIVE SHIELD IN POSITION AND PROPERLY SECURED
3:Before replacing the cabinet cover, thoroughly inspect the inside of the cabinet to see that no stray parts or tools have been left inside.
Before returning any television to the customer, the service personnel must be sure that it is completely safe to operate without danger of electrical shock.
POWER SUPPLY CIRCUIT 
SMPS SCHEMATIC 
POWER BOARD LAYOUT 
CLICK ON THE IMAGES TO ZOOM IN