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19" LCD Color Monitor Iiyama PLE1902WS
35
8.2.2 Power Board
1) No power
Check L904 = 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 pin3 of IC901
Check R904, R932, R933, 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/D903/IC903/ZD921/ZD922
OK
Check IC901 pin8 PWM wave
OK
Check IC901
NG
NG
NG
OK
NG
Summary of Contents for PLE1902WS
Page 3: ...19 LCD Color Monitor Iiyama PLE1902WS 3 1 Monitor Specification ...
Page 6: ...19 LCD Color Monitor Iiyama PLE1902WS 6 3 3 Adjust the Picture ...
Page 7: ...19 LCD Color Monitor Iiyama PLE1902WS 7 ...
Page 8: ...19 LCD Color Monitor Iiyama PLE1902WS 8 ...
Page 9: ...19 LCD Color Monitor Iiyama PLE1902WS 9 ...
Page 10: ...19 LCD Color Monitor Iiyama PLE1902WS 10 ...
Page 11: ...19 LCD Color Monitor Iiyama PLE1902WS 11 ...
Page 27: ...19 LCD Color Monitor Iiyama PLE1902WS 27 7 PCB Layout 7 1 Main Board 4 B U B Z ...
Page 28: ...19 LCD Color Monitor Iiyama PLE1902WS 28 ...
Page 29: ...19 LCD Color Monitor Iiyama PLE1902WS 29 7 2 Power Board ...
Page 30: ...19 LCD Color Monitor Iiyama PLE1902WS 30 7 3 Key Board ...
Page 40: ...19 LCD Color Monitor Iiyama PLE1902WS 40 10 Monitor Exploded View ...