Philips 150S7 Service Manual page 42

15" LCD Color Monitor
Power/Inverter Board
No power
Adapter Board
Check CN902 pin 6/7 = 12V
Check AC line volt 100-240V
Check the voltage of C905 (+)
Check start voltage for the pin 3 of IC901
Check the auxiliary voltage is bigger than
10V and smaller than 20V
Check D904, D905, IC902, IC904
NG
NG
OK
NG
OK
NG
OK
NG
OK
Check AC input
Check bridge rectified circuit and F901 circuit
Check R904, R905, R906 and Check IC901
Check IC901, IC903, D903, T901
42
150S7