DOWNLOAD Harman Kardon CDR 25 (serv.man4) Service Manual ↓ Size: 10.14 MB | Pages: 80 in PDF or view online for FREE

Model
CDR 25 (serv.man4)
Pages
80
Size
10.14 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cdr-25-sm4.pdf
Date
PREV: Harman Kardon CDR 25 (serv.man3) Info Sheet

Harman Kardon CDR 25 (serv.man4) Service Manual ▷ View online

25
No 5V
Q107 Emitter is ok?
D106
anode oscillate
intermittent?
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
Check C116, C117, L110.
Vcc is supplied at IC104
pin1, 3 and IC102 pin1?
Check all Vcc line(Open
each line and check again)
Check power control Line.
Check connector and 5V
line.
3. No power
D106 anode oscillate
Normally?
Check the primary power
part
Check IC102, 104
application
Q107, Q102 Emitter are ok?
NO
NO
NO
NO
NO
Check -34V power line.
26
5V is OK?
YES
YES
YES
YES
YES
YES
Check D120 and 2-lines..
NO
Refer no power
Check IC802(Reset IC).
FLD heater Vcc is OK?(about 4V)
Between CN803 pin 1 and 4)
IC801 pin6 is High(Reset)
FLD CLK/DATA/CS is ?????
(IC801 pin 7, 8, 15)
OSC is appear in pin3, 4(IC801)
Replace IC801
Check connector CN803 PN401
and IC401 control lines.
NO
Check IC401 and Reset line.
Check X801.
4. FLD No Display
-34V is OK? IC801 pin60.
5. Troubleshooting Guide(In the Initial Lead-in Operation Mode)
27
IC407
IC407
IC405
IC405
IC405
IC402
IC402
IC405
5
6
9
10
IC402  
IC402
IC405  12 W   13 V   14 U?
IC402
IC402
IC405
FAO
92
4
95
28
IC403
IC403
2.8
IC402,
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