
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”
NO
NO
•Check the PICK UP FFC.
•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.”
Is FAO signal
output normal in Focusing
Up/Down? (IC301
pin 207)
YES
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 ...