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Troubleshooting – No Component Video
Troubleshooting – No Component Video
Does 3.3V appear at ZD109 ~ 113?
YES
Does the waceform appear at
R1011(Pr)
, R1012(Y)
, R1013 (Pb)?
11
12
YES
Does the TX** signal appear at Pin 14 and 15
of CN403?
YES
Check the cable between the main board and panel and
replace the LCD panel.
Press the power button and check
NO
NO
Reconnect the component cable.
13
The scaler (IC408) is abnormal.
NO
Replace the main board.
CN403
R1011~R1013
ZD109
ZD110~113
the LED.
11
12
13
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