Denon DCD-1500 Service Manual page 27

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fective cta .
area has no seratch?
Oetective ctamp,.
Or is there no
chafe?
Clamper height
improperly adjusted.
Loader improperiy
> Mounted,
Is focus offset
suited best?
Check disc."
Check clamper.
ts pick-up
Moves smoothty?
Fix up pick-up lead wire.
Check slide shaft
Parallel degree or dust,
As teacking
S€°V0 works
"property?
ts noise
reduces when
changing PLL.
frequency?
© Fix up pick-up
fead wire, :
® Poor grounding
Detective wracking offser.
Defective tracking gain.
of mechanism
unit (servo),
© Deteriorated pick-up,
Oetective sub-command
signal,
Defective microcomputer.
ay
Defect in
loader operation
ts loader goes in
and goes out?
Is the signat
Wansmitted from
* * 16201 tmicro-
computer}?
Defective leat switch
'at the side of loader.
'test mode because of
other key is pressed, or defective
microcomputer.
" 8 Delective drive circuit.
® Detective motor, wire.