Troubleshooting – No AV Video
Troubleshooting – No AV Video
14
CN403
L101
Check the cable between the main board and panel and
replace the LCD panel.
Does the LED light up when turn on the power? Check the power port.
NO
YES
Does the waveform at L101 ?
Does the TX** signal appear at Pin 14 and 15
of CN403?
The scaler (IC408) is abnormal.
Replace the main board.
NO
YES
Reconnect the cable.
NO
YES
14
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