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12
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TROUBLESHOOTING GUIDE FOR CD-RW BOARD
Reset or Power Check.
•Is the Pin 1, 3 of PN105 5V?
•Is the Pin 5 of PN105 12V?
Does the pin1
of IC101 change 0V to 5V at the power
supply initial input mode?
• Check the PN105.
• Check the SMPS board.
YES
YES
NO
• Check the IC101(RESET IC).
• Check the IC301(HD64F3062),
IC301(XC10TQ80)
NO
Are the X701 and X301 oscillating?
YES
•Is the pin4 of IC103 3.9V?
•Is the Pin32 of IC401 2.0V?
•Is the Pin4 of IC102 3.3V?
YES
•Is the Pin7 of IC514 2.5V?
•Is the pin1 and 2 of IC514 2.0V?
YES
•Is the pin1 of IC511 8.0V?
•Is the pin1 of IC512 8.0V?
YES
•Check the X701, X301.
•Check the IC701, IC301.
NO
•Check the IC103(BA3939).
•Check the IC401(CXA2551R).
•Check the IC102(BA033S).
NO
Check the IC514(NJM3414).
NO
•Check the IC511(NJM7808).
•Check the IC512(NJM7808).
NO
OK
24
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 ...
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Page 71: ... 28 71 CDR20 harman kardon ...
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