Service manual

21.5" LCD Color Monitor AOC e2236Vwa
51
9.2.2 Power Board
1) No power
715G3189P01LED001S & 715G3189P02LED001S
Check AC line volt 110V or 240V
Check AC input
Check the voltage of C907 (+)
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin2 of IC901
Check R920, R921, R922 Change IC901
NG
OK
OK
Check D903 ,D904,D905,D906,IC902,IC903,ZD901
Check IC901 pin1,3 PWM wave
OK
Check IC901
NG
NG
OK
NG