![Harman Kardon CDR 20 Service Manual Download Page 28](http://html1.mh-extra.com/html/harman-kardon/cdr-20/cdr-20_service-manual_599341028.webp)
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6
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NO
NO
•Check the connection of IC201 pin2.
•Replace the IC201(OTI-9790)
NO
•Replace the IC509(NJM3404).
NO
•Check the connection of IC301 pin99.
•Replace the IC701(MICOM)
NO
•Check the connection of IC701 pin94.
•Replace the IC701(MICOM)
•Check the connection of IC510 pin19.
•Replace the IC501(BA6664FM)
•Check the spindle Connector
(CN502)
•Replace the Spindle Motor.
NO
Spindle operating is abnormal.
Is there Spindle
control signal input?
(IC510 pin 22)
YES
YES
YES
Is there Spindle
control signal output?
(IC509 pin 7)
YES
Is there DMO signal input?
(IC509 pin5)
Is there Spindle
drive voltage output?
(IC510 pin 2,4,7)
Is SPNON signal “H”?
(IC510 pin 23)
YES
YES
Is SBRK signal “L”?
(IC510 pin 18)
NO
Is there
a SPNFG signal input?
(IC701 pin 7, IC201
pin 95)
YES
Replace the IC508(BU4053).
OK
28
CDR20
harman/kardon
Summary of Contents for CDR 20
Page 20: ...3 Troubleshooting Guide In the Initial Lead in Operation Mode 8 20 CDR20 harman kardon ...
Page 21: ...21 CDR20 harman kardon ...
Page 22: ...22 CDR20 harman kardon ...
Page 23: ...23 CDR20 harman kardon ...
Page 37: ... 26 37 harman kardon ...
Page 40: ......
Page 41: ......
Page 65: ... 42 LOCATION GUIDE 65 harman kardon ...
Page 66: ... 43 N LOCATION GUIDE 66 CDR20 harman kardon ...
Page 67: ... 44 RECORD TOP SECTION CD RECORD BOTTOM SECTION 67 CDR20 harman kardon ...
Page 68: ... 45 AUDIO BOTTOM SECTION harman kardon ...
Page 69: ... 46 ECTION 69 CDR20 harman kardon ...
Page 70: ......
Page 71: ... 28 71 CDR20 harman kardon ...
Page 72: ......
Page 73: ...73 harman kardon ...
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Page 77: ... 34 77 CDR20 harman kardon ...
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Page 79: ...harman kardon ...
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Page 83: ... 40 ON 83 CDR20 harman kardon ...
Page 84: ... 41 84 0 harman kardon ...
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