Service Manual ASUS VW224U&VW224S
76
11.2 Power/Inverter Board
1.) No power
Check CN902 pin4, 5 = 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 pin8 of IC901
Check R904, R932, R933 and Change IC901
NG
Check the auxiliary voltage is bigger than
10V and smaller than 20V
1) Check IC901
2) Check R909, D901 circuit
OK
OK
NG
Check Q901, IC903, IC904, D915, D916, ZD921, ZD922
OK
Check IC901 pin6 PWM wave
OK
Check IC901
NG
NG
NG
OK
NG
Summary of Contents for VW224S
Page 5: ...Service Manual ASUS VW224U VW224S 5 1 Monitor Specifications ...
Page 9: ...Service Manual ASUS VW224U VW224S 9 2 3 OSD Menu ...
Page 10: ...Service Manual ASUS VW224U VW224S 10 ...
Page 11: ...Service Manual ASUS VW224U VW224S 11 ...
Page 14: ...Service Manual ASUS VW224U VW224S 14 3 3 Factory Preset Display Modes ...
Page 32: ...Service Manual ASUS VW224U VW224S 32 6 PCB Layout 6 1 Main Board 715G2670 1 2 ...
Page 33: ...Service Manual ASUS VW224U VW224S 33 ...
Page 34: ...Service Manual ASUS VW224U VW224S 34 ...
Page 35: ...Service Manual ASUS VW224U VW224S 35 6 2 Power Board 715G2538 1 ACE ...
Page 36: ...Service Manual ASUS VW224U VW224S 36 ...
Page 37: ...Service Manual ASUS VW224U VW224S 37 ...
Page 38: ...Service Manual ASUS VW224U VW224S 38 6 3 Audio Board 715G2837 1 2 6 4 Key Board 715G2900 1 ...
Page 79: ...Service Manual ASUS VW224U VW224S 79 12 Exploded View ...