19" LCD Color Monitor Iiyama PLE1902S
36
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 PLE1902S
Page 3: ...19 LCD Color Monitor Iiyama PLE1902S 3 1 Monitor Specification ...
Page 6: ...19 LCD Color Monitor Iiyama PLE1902S 6 3 3 Adjust the Picture ...
Page 7: ...19 LCD Color Monitor Iiyama PLE1902S 7 ...
Page 8: ...19 LCD Color Monitor Iiyama PLE1902S 8 ...
Page 9: ...19 LCD Color Monitor Iiyama PLE1902S 9 ...
Page 10: ...19 LCD Color Monitor Iiyama PLE1902S 10 ...
Page 11: ...19 LCD Color Monitor Iiyama PLE1902S 11 ...
Page 13: ...19 LCD Color Monitor Iiyama PLE1902S 13 4 2 Factory Preset Display Modes ...
Page 28: ...19 LCD Color Monitor Iiyama PLE1902S 28 7 PCB Layout 7 1 Main Board 4 B U B Z ...
Page 29: ...19 LCD Color Monitor Iiyama PLE1902S 29 ...
Page 30: ...19 LCD Color Monitor Iiyama PLE1902S 30 7 2 Power Board ...
Page 31: ...19 LCD Color Monitor Iiyama PLE1902S 31 7 3 Key Board ...
Page 41: ...19 LCD Color Monitor Iiyama PLE1902S 41 10 Monitor Exploded View ...