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

33
NO
NO
NO
Replace the IC203.
NO
Check the connection of IC203.
NO
Sled operating is abnormal.
Is there
Sled control signal output?
(IC203 pin 84, 85)
Is there
Sled drive voltage input?
(IC303)
Check the connection of IC203
pin 84, 85
YES
YES
YES
Check the connection of IC203
Replace the IC303
Is there
Sled drive voltage output?
(IC303 pin 5,6,9,10)
Is Act_Mute signal "L"?
(IC303 Pin41)
YES
Replace the IC303
OK
34
NO
NO
•Check the connection of IC201 pin2.
•Replace the IC201(OTI-9790)
NO
•Replace the IC306(NJM3404).
NO
•Check the connection of IC201 pin2.
•Replace the IC203(MICOM)
NO
•Check the connection of IC303 pin24.
•Replace the IC303
•Check the spindle Connector
(PN304)
•Replace the Spindle Motor.
NO
Spindle operating is abnormal.
Is there Spindle
control signal input?
(IC303 pin 26)
YES
YES
YES
Is there Spindle
control signal output?
(IC306 pin 7)
YES
Is there DMO signal input?
(IC306 pin5)
Is there  Spindle
drive voltage output?
(IC303 pin 12,13,14)
Is SPNON signal “H”?
(IC303 pin 263)
YES
Is there
a SPNFG signal input?
(IC203 pin 95)
YES
Replace the IC303.
OK
35
NO
NO
•Check the connection of IC201 pin207.
•Check the communication line between
IC201 and IC203
•Replace the IC201(OTI-9790)
•Check the connection of IC203
pin 100.
•Replace the IC203(MICOM)
NO
Focus Actuator operating
is abnormal
Is there
Focus Search control signal
input? (IC303 pin 27)
(FAO)
YES
YES
YES
Is Act_Mute signal “L”?
(IC303 pin 41)
Replace the IC303(BA5983).
•Check the connection of PN301 Pin 1,4.
•Check the Pick-up Connector.
Replace the Pick-Up.
Is there Focus Search
drive voltage output?
(IC303 pin 34,35)
NO
NO
Go to “Focus Servo is unstable”
Replace the IC301(CXA3558R).
NO
Spindle control is abnormal 1
Does FOCUS Servo
operate normally?
YES
YES
YES
Is there a output normally?
(IC301 pin 67, 68)
Replace the IC301.
Go to “Spindle operating is
abnormal”
Is there
RFAC(EFM)signal input?
(IC201 pin 163)
36
YES
NO
Go to “RF output is abnormal”
Spindle control is abnormal 2
(CD-ROM Disc)
Is there
RRF signal output?
(IC301 pin 82)
YES
NO
Replace the IC301.
Is there
RFDC signal input?
(IC301 pin 81)
YES
NO
Go to “Track servo is unstable”
Does Tracking
Servo operate normally?
YES
Go to “Disc recognition is abnormal”
NO
NO
Go to “RF output is abnormal”
Spindle control is abnormal 3
Is there WBLIN signal
input? (IC201 pin 132)
Is there ATFM signal
output? (IC301 pin 23)
YES
Replace the IC301(CXA3558R).
NO
Replace the IC201(OTI-9790).
Is there DMO signal
output? (IC201 pin 2)
YES
Go to “Spindle operating is 
abnormal”
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