36
8.2 Monitor Check Flow Chart
8.2.1 No Raster
No raster
Check U402
Check Q506
Check CRT
Check F.B.T
Check F.B.T
Check F.B.T
pin 3 voltage
about 75-160V
Check power
supply circuit
Yes
Yes
NO
NO
NO
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Check Power
indector lighted
Check AC
power input
Check Q402
collector voltage
about 1200Vpp
Check U402
pin 7 output
sequare wave form
Check
power supply
circuit
Check
contrast & brightness
control adjust to MAX.
Check
HEATER voltage= +6.3VDC
G1=-40-60VDC
G2=450-600VDC
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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