Service Manual ASUS VW223
58
8.2.2 Power Board
1) No power
Check AC line volt 110V or 220V
Check AC input
Check the voltage of C
K1
Check bridge rectified circuit and F
S1
circuit
Check start voltage for the pin5 of U1
Check R
X4
, RX5, RX6, Change U1
NG
Check the auxiliary voltage is bigger than
10V and smaller than 20V
1) Check U1
2) Check R906/D908 circuit
OK
OK
NG
Check Q1
OK
Check U1 pin6 PWM wave
OK
Check U1
NG
NG
OK
NG
Содержание VW223 Series
Страница 8: ...Service Manual ASUS VW223 8 2 2 2 Attaching the Cables ...
Страница 11: ...Service Manual ASUS VW223 11 3 2 Factory Preset Display Modes Compliant Timing ...
Страница 15: ...Service Manual ASUS VW223 15 3 3 4 Electrical Characteristics TFT LCD Module ...
Страница 16: ...Service Manual ASUS VW223 16 Backlight Unit ...
Страница 17: ...22 LCD Color Monitor ASUS VW223 17 4 Block Diagram VW223D S N T ...
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