AOC 212Va User Manual

22" LCD Color Monitor AOC 212Va
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8.2.2 Power/Inverter Board
1.) No power
Check CN902 Pin10/11/12 = 12V
Check AC line volt 110V or 220V
Check AC input
Check the voltage of C905 (+)
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin 8 of IC901
Check R904, R932, R933 or Change IC901
Check the auxiliary voltage is bigger than
10V and smaller than 20V
1) Check IC901, T901
2) Check C908, D902 circuit
OK
OK
NG
Check D904/D906/Q903/ZD920
Check IC901 pin 6 PWM wave
OK
Check IC901, Q901
NG
NG
NG
OK
NG
NG
OK

AOC 212Va Specifications

General

Brand	AOC
Model	212Va
Category	Monitor
Language	English