JVC XV-N350B Service Manual page 19

ELECTRICAL TROUBLESHOOTING GUIDE
D
Focus on OK?
YES
Track on OK?
YES
Disc is play?
YES
E
NO
Proper signals on
A,B,C,D of ZR966
Check focus_s
signal on ZR966
F+ & F- output
properly?
Check cable connection on
pick-up head.
NO
Properly track_s
signal on ZR966?
T+ & T- output
properly?
Check cable connection on
pick-up head.
NO
Check RF signal waveform.
3-8
NO
YES
NO
YES
YES
NO
YES
NO
YES
Check connections between
ZR966 and pick-up head.
Check the focus_s connection
on ZR966 and motor driver.
Check the focus control
amp circuit on motor driver.
Check the track_s connection
on ZR966 and motor dirver.
Check the tracking control
amp circuit on motor driver.