Denon DCD-1500 - Maintenance, Adjustment, and Troubleshooting; Mechanism Unit Adjustments & Service Mode

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|
ADJUSTMENT
OF
Mv
.iANISM
UNIT
|
® Turntable.Height Adjustment
@®
Attach
the
turntable
to
the
spindle
motor.”
~
+:@),
To
adjust
the
height
in
2
mm,
insert
“A”
part-of
the
++
+)
jig-between
the
upper.
surface
of
the
housing
and
the
lower surface of the turntable.
®
When
it
is
adjusted
to
2
mm,
tighten
the
set
screw.
About the height adjustment jig
As
illustration.
shows,
the
jig
to
be
used
for
the
height
adjustment
is
prepared.
The
part
indicated
“A”
for
turn-
table
height
and
“B”
for
clamper
arm
height
adjustment.
In
order
easier
for
the
adjustment,
place
the
laser
Pick-up
away
from
the
turntable
and
insert
the
jig
between
the
housing
and
the
turntable
before
attempting
the
adjust-
ment,
©
Clamper
Arm
Height
Adjustment
@®
Load
a
disc
onto
the
turntable.
@
To
adjust
the
height
between
the
disc
and
disc
clamper
in
2.5
mm,
insert
“B”
part
of
the
jig
into
the
portion
indicated
in
the
illustration.
@
After
adjusting
it
to
2.5
mm,
fasten
the
clamper
height
adjustment
screw,
MAINTENANCE
AND
ADJUSTMENT
PROCEDURE
For
necessary
operations
to
perform
part
replacement,
Pepairing,
and
adjustment,
it is
feasible
by
using
of
opera-
tion’
buttons
normally
used
for
playing
to
adjust
tracking,
focus,
etc.
of
the
laser
pick-up.
because
of
a
service
soft-
ware
(service
mode)
is
Programed
to
a
microcomputer
employed
in
this
model.
}
Hereafter
the
adjustment.
procedures
for
each
circuit
checking
and
servo
system
adjustment
are
explained
as
the
unit
is
set
to
service
mode
condition
except
for
specified
case,
tting
of
Service
Mode
©
Turn
off
the
power
(do
not
toad
a
disc).
*
Remove
top
cover
for
confirming
of
inside.
¢
Short-circuit
pins
@
and
©.
TP-204
of
signal
“=
processing
P.W.B.
(KU-5760).
It
is
convenient
to
use
a
“connector
like
one
the
illustration
shows.
“Note:
Never
short-circuit
TP-204
after
the
power
turned
Pe
on,
*
-By
turning
on
the
power,
“
(7/7)
blinks
on
the
indica-
**
<
tion
window
showing
service
mode.
°
On:
this
State,
all
buttons’
functions
for
normal
playing
a
are
inoperative
and
the
disc
tray
can
not
be
opened
or
fosed.
:
:
rt
WUTLLLET ETH.
LULLILLLLLL LL
Housing
Spindle Motor
lp 7“
Hight
Adjustment
Jig
8
part
\
A pert
Clamper Hight
af Adjustment Screw
/
Dise
.
~
Turntable
.Ptace
to
set
jig
Height : 2.5mm