Onkyo DX-C201 User Manual

Adjusting Procedure
*
If
you
have
replaced
the
optical
pickup,
spindle
motor,
or turntable, do the following adjustment:
(1)
TURNTABLE
HEIGHT
ADJUSTMENT
1.
Insert
the
0.9
mm
clearance
gauge
between
the
turntable
and
the
loading
base
(see
the
figure
at
right).
.
Tighten
the
turntable
retention
screw
with
the
1.27
mm
allen wrench.
_
Connect
the
oscilloscope’s
CH.
1
probe
across
VR104’s
(+) and VR106‘s BUMS (—) terminals via a
filter.
(Note:
A
voltage
of
2.5V
appears
at
the
V.
REF
terminal.
Take
care
not
to
short
the
player’s
chassis
to
the
oscil-
loscope
ground.)
Oscilloscope
setting:
VOLT..........
50
mV
SWEEP.........
1ms.
Input coupling... DC
.
Adjust
oscilloscope’s
DC
zero
balance.
.
Switch
the
player
power
ON,
and
play
the
test
disc
(YEDS-18)
_
Measure
the
voltage
amplitude
of
the
signal
on
the
oscilloscope.
Note 1. If the measured amplitude is within a range of +/—-
15
mV,
the
turntable
height
is
correct.
{f
it
is
outside
this
range,
adjust
the
turntable
height
by
using
the
clearance gauge as a pry.
If
the
amplitude
exceeds
+15
mV,
lower
turntable.
If
the
amplitude
is
below
—15
mV,
elevate
the
turntable.
Turntable
Clearance gauge
grb 0.9mm
LLG, UNM ast.
4 ie |
!
Spindle motor
S
Note
2.
If
the
measured
amplitude
greatly
surpasses
or
falls
short
of
the
range
above,
set
VR105
at
or
around
the
center,
then
try
to
adjust
the
height
again.
(Then
be
sure
to
adjust
the
focus
offset
as
well.)
Filter
for
turntable
height
adjustment
Oscilloscope
Carbon resistor: 10kQ
Mylar capacitor: 0.1 wF
oP
Y
D
v
Adjusting fixture
¢
Temporary
setting
of
each
VR
Tracking gain adj.
[vA101] Best eye adj.
Tracking balance adj.
Temporary
VR
setting
if
any
of
the
trimmer
VRs
are
replaced
or
require
readjustment,
temporarily
set
them
to
the
following
positions:

Onkyo DX-C201 Specifications

General

Brand	Onkyo
Model	DX-C201
Category	CD Player
Language	English