Fujitsu FA-156WB-MP Service Manual page 33

15.6”w lcd color monitor
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15.6"W LCD Color Monitor
8.2.2 Power Board
No power
Check AC line volt 110V or 220V
OK
Check the voltage of C907 (+)
OK
Check start voltage for the pin3 of IC901
OK
Check the auxiliary voltage is bigger than
10V and smaller than 20V
OK
Check IC901 pin8 PWM wave
OK
Check Q903/Q901/IC902/IC903/ZD921/ZD922
NG
Check AC input
NG
Check bridge rectified circuit and F901 circuit
NG
Check R904, R932, R933, Change IC901
NG
1) Check IC901
2) Check D900, D901 circuit
NG
Check IC901
33
Fujitsu FA-156WB-MP

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