Harman Kardon CDR 30 (serv.man10) Service Manual ▷ View online
YES
-17-
NO
Go to “RF output is abnormal”
Spindle control is abnormal 2
(CD-ROM Disc)
Is there
RRF signal input?
(IC103 pin 3)
YES
NO
Replace the IC103(EL2245).
Is there
RFDC signal input?
(IC108 pin 85)
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? (IC301 pin 132)
Is there ATFM signal
output? (IC108 pin 25)
YES
Replace the IC108(CXA2551R).
NO
Replace the IC301(OTI-9790).
Is there DMO signal
output? (IC301 pin 2)
YES
Go to “Spindle operating is
abnormal”
abnormal”
NO
YES
-18-
YES
NO
Go to “RF output is abnormal”
Disc recognition is abnormal
Is there
CDR/RW signal input
normally?(IC301 pin 33)
Is there
RECD1, RECD2 signal
output normally? (IC108 pin
80,81)
YES
Replace IC320 (MICOM)
Go to “Track Servo is unstable”
NO
NO
Go to “Laser is abnormal”
•Check the PICK UP FFC.
•Replace the PICK UP
•Replace the PICK UP
RF output is abnormal
Is there
PICK UP(A,B,C,D) output
normally? (PN101 pin 8,9,
14,15)
Is RRF signal
output normal?(IC108 pin 86)
•First Recognition try : Over 1.7 Vpp
•Second Recognition try :
Over 0.5 Vpp
YES
NO
•Check the connection between
PN101 and IC108.
•Replace the IC108(CXA2551R).
OK
YES
-19-
NO
Check the IC108(CXA2551R).
Focus Servo is unstable
Is FE signal
output normal in Focusing
Up/Down? (IC108
pin 56)
YES
Go to “RF output is abnormal”
NO
Replace the IC301(OTI-9790).
Go to “Focus Actuator operating
is abnormal”
is abnormal”
NO
NO
•Check the PICK UP FFC.
•Replace the PICK UP.
•Replace the PICK UP.
Track Servo is unstable
Is TE signal
output normal in Focusing ON
and Tracking OFF?
(IC108 pin57)
Is PICK UP(E,F,G,H)
output normal?(PN101
pin 16,7,13,10)
YES
Check the IC108(CXA2551R).
Go to “RF output is abnormal”
NO
Check the IC104(NJM3403)
Is TE signal
input normal in Focusing
ON and Tracking OFF?
(IC301 pin198)
YES
NO
Replace the IC301(OTI-9790).
Is
there TAO signal
output in Tracking ON?
(IC301 pin 208)
YES
Check the Driver
IC(IC203(BA5983)) and P/U refer-
ring to “Focus Actuator operating
is abnormal.”
IC(IC203(BA5983)) and P/U refer-
ring to “Focus Actuator operating
is abnormal.”
Is FAO signal
output normal in Focusing
Up/Down? (IC301
pin 207)
YES
-20-
NO
Check disc Label.
In case of writing fail.
Check the Media CD-R
or CD-RW?
YES
YES
Romove the Dust, Fingerprint
and if the disc has long width
Scratch, change it.
and if the disc has long width
Scratch, change it.
Dose the disc have
any Dust, Scratch,
Fingerprint...?
NO
NO
Eject Disc.
Go to “Writing Part Check”
Finalized Disc?
YES
If CD-R disc, use new CD-R disc.
If CD-RW disc, erase the dise.
If CD-RW disc, erase the dise.
Nomal Case
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