AOC L22W631 Service Manual page 20

22'' LCD TV
2. Can not start (LED indicator green)
Check CN902 PIN3/4=5V&PIN1/2=12V?
Check IC801 PIN5=5V?
Check IC801 pin11/pin12/pin19/pin20
output is PWM?
OK
Check PT801/PT802 output voltage is
OK?
OK
Check CN801~CN804 connected ok?
OK
Check PT801/PT802 output circuit.
NG
OK
OK
Return "1"
NG
Check and Debug Q804/Q802/Q803 circuit
NG
Check and Debug IC801 fail or the circuit
around IC801
NG
Check and Debug IC801 output circuit.
NG
Please connect them ok.
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AOC L22W631