AOC 2436Vh Service Manaul page 37

24" LCD Color Monitor
2.) No Backlight
Check C804(+)=16V
Check ON/OFF signal
Check IC801 PIN6/10=16V
OK
Check IC801 PIN13 have saw tooth wave
OK
Check PT801 have the output of square wave at short time
OK
Check resonant wave of PT801
OK
Check the output of PT801
Check connecter & lamp, feedback and protect circuit
NG
OK
NG
OK
NG
NG
NG
NG
NG
OK
Check adapter and Q805,Q806
Check Interface board or main board
Change on/off circuit
Change IC801
Check PT801
Check C819,C820,C821,C822
Change PT801
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AOC 2436Vh