
NO
YES
-18-
YES
NO
Go to “RF output is abnormal”
Disc recognition is abnormal
Is
CDR/RW signal input
normal? (IC301 pin 33)
Is
RECD1, RECD2 signal
output normal? (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
RF output is abnormal
Is
PICK UP(A,B,C,D) output
normal? (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
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 ...