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Is IC601 pin 11(FE) output
normal in Focusing
UP/DOWN?
Check the peripheral circuit of
IC603 (BU4053),
IC601 (NJM3403).
If it’s OK, Replace it.
NO
FOCUS Servo is unstable.
Is IC501 pin 3 (FE) input normal
in Focusing UP/DOWN?
NO
D
Replace IC501 (CXD3011R-1)
Is there normal drive
voltage output from IC501 pin 113
(FAO) in Focusing
UP/DOWN?
Go to “Focus Actuator operating
is abnormal”
NO
Is IC601 pin 10 (TE) output
Normal in Focusing ON and
Tracking OFF?
Check the peripheral circuit of
IC603 (BU4053), IC610
(NJM3403).
If it’s OK, Replace it.
NO
Tracking Servo is unstable.
Is IC501 pin 143 (TE)
input normal in Focusing ON and
Tracking OFF?
NO
D
Replace IC501 (CXD3011R-1)
Is there normal drive voltage
output from IC501 pin 112 (TAO) in
Tracking Servo ON?
Check Drive IC (IC901) and P/U Referring to
“Focus Actuator operating is abnormal”.
NO
Go to <Picture 3>
Go to <Picture 8>
YES
YES
YES
YES
YES
YES
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