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Denon DCD-1500 - Page 18

Denon DCD-1500
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{6)
Adjustment
of
Focus
Gain
With
a
sufficient
interval
of
time
in
between,
push
play
button
(
>
PLAY)
twice.
to
activate
tracking
servo
and
spindle
servo.
@
Plug
in
the
headphone
and
make
sure
the
playback
sound
is
heard
prior
to
the
adjustment.
@®
Connect
of
measuring
equipment
..
Connect
the
measuring
equipments
as
per
illustra-
tion.
Note:
Before
connecting
the
oscillator
check
the
x
Operation
of
servo
(produce
sound),
Oscilloscope
-
Pin)
of
TP-101
©
FEOX
ay
Pin
@
ot
TP-101
O
FEIN
Pin
©
of
TP-101
©
Set
to
1.1
kHz,
1.5Vp-p
Audio
-
|
a
|
Oscillator
“FEO:
Focus
Error
Out
FEI:
Focus
Error
In
Frequency
Counter
@
Adjustment
‘@
Set
the
output
of
audio
oscillator
to
1.1
kHz,
1.5
Vp-p
(40.1
V}.
Prepare
and
connect
two
filters
as
per
illustra-
®
Adjust
VR-103
and
obtain
Lissajous
figure
symmetirc
to
X
and
Y
axes.
(Adjust
the
phase
of
two
inputs
to
90°.)
i
Yaxis
*.-
Y
axis
ae
Correct
figure

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