JVC XV-N350B, Service Manual

Page: 19 / 59

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