Dell E178FPC Service Manual

17" LCD Color Monitor Dell E178FPC
52
9.2.2 Power/Inverter Board
No power
Check bridge rectified circuit and F901 circut
1) Check IC901
2) Check C911, D901, R910…OVP circuit
Check CN902 pin3, 4 = 12V
Check the voltage of C907(+)
Check start voltage for the pin8 of IC901
Check R905 and Change IC901
NG
Check the auxiliary voltage is bigger than
10V and smaller than 20V
NG
NG
NG
Check D920,L921,ZD920,C922-C925,……
Check IC901 pin5 PWM wave
Check IC901,Q900
NG
OK
NG
OK
OK
OK
OK
Check AC line volt 110V or 220V
Check AC input

Dell E178FPC Specifications

General

Brand	Dell
Model	E178FPC
Category	Monitor
Language	English