HP W19 Service Manual page 34

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19" LCD Color Monitor HP W19
9.2.2 Power Board
No power
Check AC line volt 110V or 220V
NG
OK
Check AC line
Check the voltage of C904(+)
NG
OK
Check F901, bridge rectified circuit
Check start voltage for the Pin7 of IC901
NG
OK
Check R903~R904,IC901
Check the auxiliary voltage is between 10V-16V
NG
OK
Check IC901,T901,Check ZD901
Check D904,D905,IC903
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