JVC CE MANUALXV-N450BUC Service Manual page 19

D
NO
Focus on OK?
YES
NO
Track on OK?
YES
NO
Disc is play?
YES
E
Proper signals on
A,B,C,D of ZR966
YES
Check focus_s
signal on ZR966
YES
F+ & F- output
properly?
YES
Check cable connection on
pick-up head.
Properly track_s
signal on ZR966?
YES
T+ & T- output
properly?
YES
Check cable connection on
pick-up head.
Check RF signal waveform.
Check connections between
NO
ZR966 and pick-up head.
Check the focus_s connection
NO
on ZR966 and motor driver.
Check the focus control
amp circuit on motor driver.
Check the track_s connection
NO
on ZR966 and motor dirver.
Check the tracking control
NO
amp circuit on motor driver.
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