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Product System (PS)
C4-425 Trouble Shooting Guide
Subject:
9J.M7375.001
Project Code:
V37C
Model Name:
Power On OK?
Backlight OK?
(No full white)
IR Remote
controller, keypad
and LED OK?
OSD Image OK?
No signal?
Audio OK?
Function OK?
Form No: BQY0-0B-003-32(031205)
System Trouble Shooting Flow Chart
1.
Check adapter AC socket to LCD TV.
No
2.
Check cable connection between power board and main board.
3.
Check power board VCC
Yes
1.
Check cable connection between main board and LCD panel
No
Yes
1.
Check remote controller battery.
No
2.
Check remote controller.
3.
Check wire connection between main board and keypad board.
4.
Check the connection between IR board and keypad board.
Yes
No
1.
Check cable connection between main board and LCD panel.
Yes
Yes
1.
Check input cable.
2.
Check OSD source set up.
No
No
1.
Check wire between main board to speaker.
2.
Check audio input connection.
Yes
No
1.
Check main board
9J.M7375.BAT
Part No.:
9J.M7375.BAT-C4-425-00
Doc. No.
1
NA
Component Part. No.:
Marketing Description :
Rev.:
0
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