37
8.2.2 No picture
No picture
Check
intput signal
Check
I/O cable
Check
connector
Check
Q517, ZD501, ZD201
Check PC
Check U301
Check CRT
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Check
contrast & brightness
control adjust to MAX.
Check
U301 pin 14,17,20
output
Check all output
transister
Check C251
voltage = 70VDC
Check U301 PIN 8
voltage = 8VU301 PIN 10
PULSE BLANKING
Summary of Contents for AM501
Page 1: ...AM 501 Service Guide 15 inch CRT Monitor ...
Page 4: ......
Page 36: ...32 6 9 Control And Conmect Layout 6 9 1 Main PCB ...
Page 37: ...33 7 0 FUNCTION BLOCK DIAGRAM 7 1 Monitor Portion ...
Page 38: ...34 8 0 POWER SUPPLY PORTION ...
Page 43: ...39 APPENDIX A PARTS LIST ...
Page 55: ...51 APPENDIX B DISPLAY UNTY ASSEMBLY ...
Page 56: ...52 ...
Page 61: ...57 ...
Page 62: ...58 ...
Page 65: ...61 APPENDIX C CRT YOKE ASSEMBLY ...
Page 66: ...62 ...
Page 68: ...64 ...
Page 70: ...66 APPENDIX D P C B A ASSEMBLY ...
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