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Troubleshooting
1. System Trouble Shooting Flow Chart
Power On OK?
Backlight OK?
IR
controller,
keypad and LED
OSD Image OK?
No signal?
Audio OK?
Function OK?
No
1.
2.
3.
Yes
1.
No
2.
3.
Yes
Remote
1.
No
2.
3.
Yes
No
3.
Yes
Yes
1.
2.
No
No
1.
1.
Yes
No
1.
2.
3.
Check Power BD.
Check wire connection between power board and main board.
Check LVDS cable connection between main board and LCD
panel.
Check wire connection between power board and inverter board.
Check LVDS cable connection between main board and LCD
Check MODULE_ON on the main BD.
Check remote controller battery.
Check remote controller.
Check wire connection between main board and IR, keypad
board.
Check LVDS cable connection between main board and LCD
panel.
Check input cable.
Check OSD source set up.
Check wire between main board to speaker.
Check audio input connection.
Check Main board
Check Video BD
check Audio BD
99
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