AOC 193P+ Bedienungsanleitung PDF herunterladen (Seite 37)

AOC 193P+

8.2.2 Power/Inverter Board

1) No power

Check CN102 pin 5/6 = 12V

Check AC line volt 110V or 220V

Check AC input

Check the voltage of C904 (+)

Check bridge rectified circuit and F901 circuit

Check start voltage for the pin3 of IC901

Check R903, R904 and Change IC901

Check the auxiliary voltage is bigger than

10V and smaller than 20V

1) Check IC901

2) Check ZD901,Q902,Q903 OVP circuit

Check T901, D911, IC902, IC903

Check IC901 pin 8 PWM wave

Check IC901

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AOC 193P+ Bedienungsanleitung Seite 37