HP 2009v

20" LCD Color Monitor HP 2009v
36
W/LED No Backlight
Check C804(+)=16V
NG
OK
Check adapter
Check ON/OFF signal
Check Interface board or main board
NG
OK
Check IC801 pin11=5V ?
NG
OK
Check ON/OFF signal
Check IC801 PIN8, 9 have the output of square wave at short time
NG
OK
Change IC801
Check the input of Q805, Q806
NG
OK
Change Q805, Q806
Check the output of PT801
Check connecter & lamp
OK
NG
Change PT801