35
8.1 Trouble Shooting
8.1.1 Power Supply Check
Start
Stop
OK
Check and repair EMI filter
and Q901, I/P Rectifier
R 905,U901,R906
Check and repair Q902,
Q903,D908,U901,R909,
D909, R908
Check R909,D943,D909
R913, R916, VR901
Check Q940,Q941,D942,
R942
Check D941, C941
Check and repair R911,
R918, R910, C910
Yes
No
No
No
No
No
Check fuse,
FUSE OPEN
Is 7.5V
in spec?
Is 13V
in spec?
Is 60V volage
correct?
Combine with
monitor check operating
frequency?
IS
Q901 VDS
waveform normally?
Содержание AM501
Страница 1: ...AM 501 Service Guide 15 inch CRT Monitor ...
Страница 4: ......
Страница 36: ...32 6 9 Control And Conmect Layout 6 9 1 Main PCB ...
Страница 37: ...33 7 0 FUNCTION BLOCK DIAGRAM 7 1 Monitor Portion ...
Страница 38: ...34 8 0 POWER SUPPLY PORTION ...
Страница 43: ...39 APPENDIX A PARTS LIST ...
Страница 55: ...51 APPENDIX B DISPLAY UNTY ASSEMBLY ...
Страница 56: ...52 ...
Страница 61: ...57 ...
Страница 62: ...58 ...
Страница 65: ...61 APPENDIX C CRT YOKE ASSEMBLY ...
Страница 66: ...62 ...
Страница 68: ...64 ...
Страница 70: ...66 APPENDIX D P C B A ASSEMBLY ...
Страница 73: ......
Страница 74: ......
Страница 75: ......
Страница 76: ......