20" LCD Color Monitor HP W2007&W2007v
35
2. W/LED No Backlight
Check FB902=12V
NG
OK
Check CN902 and adapter
Check ON/OFF signal
Check Interface board or main board
NG
OK
Check IC801 pin12=5V ?
NG
OK
Check ON/OFF signal
Check IC801 PIN9,10 have the output of square wave at short time
NG
OK
Change IC801
Check the input of Q802, Q803
NG
OK
Change Q802, Q803,Q801,Q804,Q811,Q812
Check the output of PT801/PT802
Check connecter & lamp
OK
NG
Change PT801/PT802
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