Kenwood DVF-3400-B, Руководство по обслуживанию

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10
D
VF-3400
TR
OUBLESHOO
TING
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
NO NO
YES
YES
Check connection between
ZR966 & Audio DAC.
Check Audio filter,
amplify, mute circuit.
NO NO
YES
Check communication
lines on ZR966.
YES
YES
TEST END
Check the cable connection
on Front pannel.
Normal
Audio output when disc
playback?
Audio
DAC received correct
data stream?
Commu-
nications between
IR.VFD Front pannel
key & ZR966 is
normally?
Normal
IR.VFD & Front
pannel key
functions?
NO
Check the related
circuit of Audio DAC.
Normal Audio
DAC out?
E