Troubleshooting – No Component Video
Troubleshooting – No Component Video
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CN403
ZD109 ZD110~113
Does 3.3V appear at ZD109 ~ 113?
Press the power button and check
the LED.
NO
YES
Reconnect the component cable.
NO
YES
Does the TX** signal appear at Pin 14 and 15
of CN403?
Check the cable between the main board and panel and
replace the LCD panel.
The scaler (IC408) is abnormal.
Replace the main board.
NO
YES
Does the waceform appear at
R1011(Pr) , R1012(Y) , R1013 (Pb)?
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R1011~R1013
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