HP W1707 Service Manual page 34

17" LCD Color Monitor
2. W/LED No Backlight
Check ON/OFF signal
Check IC801 pin2=5V ?
Check IC801 PIN9,10 have the output of square wave at short time
Check the input of Q802,
Check the output of T801
Check connecter & lamp
Check F801=12V
NG
OK
NG
OK
OK
NG
OK
NG
OK
NG
OK
Check CN902 and adapter
Check Interface board or main board
NG
Check ON/OFF signal
Change IC801
Change Q802,
Q801,Q804,Q811,Q812
Change T801
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HP W1707