AOC HP VP17 Service Manual page 35

17" LCD Color Monitor
2. W/LED No Backlight
Check C802 (+) =12V
Check ON/OFF signal
Check IC801 pin12=12V ?
Check the pin5 of IC801 have saw tooth wave
Check Q802 D /Q803 D has the output of square wave at short time.
Check the resonant wave of pin1 & pin6 for T801/PT802
Check the output of T801/T802
Check connecter & lamp
NG
OK
NG
OK
OK
NG
OK
NG
OK
NG
OK
NG
OK
Check D906, F801
Check Interface board
NG
Change Q805 or Q806
Change IC801
Check Q801/Q804,Q811/Q812
Check Q802/Q803
Change T801/T802
35
HP VP17