AOC LM760S Service Manual page 35

17" LCD Color Monitor
W / LED, No Backlight
Check CN102 pin12 =12V
OK
Check ON/OFF signal
OK
Check U201 pin9=12V
OK
Check the pin1 of U201 have saw tooth wave
OK
Check D201/D202 (-) have the output of square wave at short time.
OK
Check the resonant wave of pin2 & pin5 for PT201/ PT202
OK
Check the output of PT201/ PT202
OK
Check connecter & lamp
NG
Check adapter or MB
NG
Check Interface board
NG
Change Q201 or Q202
NG
Change U201
NG
Check Q203/Q209/Q210/D201/
Q204/Q211/Q212/D202
NG
Check Q209/Q210/C213/
Q211/Q212/C214
NG
Change PT201/ PT202
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AOC LM760S