Denon DCD-715 - FOCUS AND TRACKING ADJUSTMENTS; Necessary Equipment and Presets; Focus Gain Adjustment

:
Eg
A
a
a
Ie
a
NG
DCD-715/615
(2) Necessary equipment for adjustment
1. Dual trace oscilloscope
(@ 2. Reference disc (CA-1094) or CO-76143 Input * a : Output
a
3.
Oscillator
(10
Hz
~
10
kHz,
0
~
3
Vp-p)
(Main
unit)
0.001
uF
(Oscilloscope)
4.
Frequency
counter
(readable
no
less
than
5
KHz)
5.
Filter
for
measurement
(Filter for measurement)
(3) Preset
a
2. Preset VR101, 102 as per right figure.
VR102 5) 12 O'clck
(F-GAIN)
VR104 yam 12 O'clck
(TR-GAIN)
4. Focus gain
Connection
Oscilloscope
Main Unit
Filter Counter
TP101- © (FEO)
F TP101-@ (FE!)
{@
TP101-® (VC) O
(Volume) (Oscilloscope) | 1. Push [I PAUSE] . (Displays track number G3 )
. Connect oscillator.
@ CA-1094 @ CA-1094
930
Hz
930
Hz
.
Set
oscillator
to
930
Hz/2
Vp-p
or
710H2/1Vp-p.
2
Vp-p
.
Switch
oscilloscope
input
to
X-Y
mode.
+0.
e
DC
range
(+0.1
V)
Se
a
.
Adjust
VR102
[F-GAIN]
to
symmetrize
Lissajous
Phase
90°
figures
to
X-Y
axes.
Waveform
not
right
@
CO-76143
|e
CO-76143
Y
axis
1
8
710
Hz
710
Hz
1 Vp-p
(+0.1V)
13