
YES
-17-
NO
Go to “RF output is abnormal”
Spindle control is abnormal 2
(CD-RW 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 operation is
abnormal”
Summary of Contents for C660
Page 8: ... 8 IC501 2 8 IC502 ...
Page 36: ... 36 2 CD PLAY CIRCUIT DIAGRAM ...
Page 37: ... 37 3 CD RECORD 1 CIRCUIT DIAGRAM ...
Page 38: ... 38 4 CD RECORD 2 CIRCUIT DIAGRAM ...
Page 39: ... 39 5 CD RECORD 3 CIRCUIT DIAGRAM ...
Page 40: ... 40 6 I O CIRCUIT DIAGRAM ...
Page 41: ... 41 7 FRONT CIRCUIT DIAGRAM ...
Page 42: ... 42 PRINTED CIRCUIT BOARD DIAGRAMS 1 CD PLAY TOP P C BOARD 2 CD PLAY BOTTOM P C BOARD ...
Page 43: ... 43 3 CD RECORD TOP P C BOARD 4 CD RECORD BOTTOM P C BOARD ...
Page 44: ... 44 5 I O TOP P C BOARD LOCATION GUIDE 6 I O BOTTOM P C BOARD LOCATION GUIDE ...
Page 45: ... 45 7 FRONT P C BOARD LOCATION GUIDE ...