Aiwa xc-rw700 Service Manual page 80

TROUBLESHOOTING - 17/26
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Focus Servo is unstable
Is FE signal
output normal in Focusing
Up/Down? (IC401
pin 56)
YES
Is FAO signal
output normal in Focusing
Up/Down? (IC201
pin 207)
Go to Focus Actuator operating
is abnormal
Track Servo is unstable
Is TE signal
output normal in Focusing ON
and Tracking OFF?
TE
L 13942296513
(IC401 pin57)
YES
Is TE signal
input normal in Focusing
ON and Tracking OFF?
(IC201 pin198)
YES
Is
there TAO signal
output in Tracking ON?
(IC201 pin 208)
YES
Check the Driver IC(IC501) and
P/U referring to Focus Asctatr
operating is abnormal.
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NO
Check the IC401(CXA2551R).
Go to RF output is abnormal
NO
Replace the IC201(OTI-9790).
Is PICK UP(E,F,G,H)
NO
output normal?(CN401
pin 16,7,13,10)
Check the IC401(CXA2551R).
Go to RF output is abnormal
NO
Check the IC403(NJM3403AV)
NO
Replace the IC201(OTI-9790).
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YES
YES
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NO
Check the PICK UP FFC.
Replace the PICK UP.
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