There are still a few analog adjustments in this series such as focus and master screen voltage. Follow the steps below whenever the service adjustment is required.
Before putting unit into the service mode, check that customer adjustments are in the normal mode. Use the reset function in the video adjustment menu to ensure customer controls are in their proper (reset) position.
Once in the service mode, press the Ch-up or Ch-down button on the remote controller or at the set. The service adjustment item will vary in increments of one. Select the item you wish to adjust.
Press the Vol-up or down button to adjust the data number.
To enter the service mode and exit service mode.
Short JA137 & JA138 for 1 Second and release to switch to the service mode position, and the microprocessor is in input mode.(Adjustment through the I2C bus control.)
To exit the service mode, turn the television off by pressing the power button.
Before putting unit into the service mode, check that customer adjustments are in the normal mode. Use the reset function in the video adjustment menu to ensure customer controls are in their proper (reset) position.
Once in the service mode, press the Ch-up or Ch-down button on the remote controller or at the set. The service adjustment item will vary in increments of one. Select the item you wish to adjust.
Press the Vol-up or down button to adjust the data number.
To enter the service mode and exit service mode.
Short JA137 & JA138 for 1 Second and release to switch to the service mode position, and the microprocessor is in input mode.(Adjustment through the I2C bus control.)
To exit the service mode, turn the television off by pressing the power button.
Service mode adjustments
1
Press the CH DOWN/UP key on the remote controller to get ready to select the
mode one by one.
2 Press the CH DOWN/UP key on the remote controller to select the modes reversibly one by one.
3 Using the VOLUME UP/DOWN key on the remote controller, the data can be modified.
(OSD disturbance can be erased by R/C display key)
2 Press the CH DOWN/UP key on the remote controller to select the modes reversibly one by one.
3 Using the VOLUME UP/DOWN key on the remote controller, the data can be modified.
(OSD disturbance can be erased by R/C display key)
Holding down to short JA137 & JA138 and turn on the main power SW will automatically write the initial values into IC1003.
This is only can done when a new EEPROM is used.
Schematic (Circuit diagram)
Schematic (Circuit diagram)
Click on the pictures to magnify
