Sony PS-X50 - Page 11

KSO PS-X50
PS-X50
Hall Device Gain Adjustment (33/3 rpm)
1.
Disconnect
the
white
lead
wire
and
connect
the
regulated
power
supply
as
shown
below.
Turntable Speed Adjustment
regulated dc
power supply (variable) 1, Set the SPEED switch (S2, 3) to “45” position.
ral
rot 700 ~ 200nS
2. Reference waveform:
Note: Waveform must appear @ side.
3. If the correct waveform does not appear, adjust
RV202 (45 rpm).
Disconnect the
white lead wire.
4. Set the SPEED switch (2, 3) to “33”? position.
2.
Connect
VTVM
to
H1
and
adjust
RV205
for
1.9
V
eee
ane
ac reading on VIVM.
5.
Reference
waveform:
Note:
Waveform
must
appear
@
side.
3. Connect VTVM to H2 and adjust RV206 for 1.9 V
ac reading on VI'VM.
6. If the correct waveform does not appear, adjust
RV201 (33 rpm) so that the stroboscope pattern
appears stationary.
Motor Amp Offset Adjustment (33!/3 rpm)
1.
Disconnect
the.
white
lead
wire
and
connect
the
2.
Connect
VTVM
or
oscilloscope
to
H1
and
adjust
regulated
power
supply as
shown
below.
RV204
for 0
V
dc
VTVM reading
or
the waveform
on
oscilloscope
as
shown
below.
aoe
3.
Connect
VTVM
or
oscilloscope
to
H2
and
adjust
f(A)
power:
supply
(variable)
RV203
for
0
V
dc
VTVM
reading
or
the
waveform
on
oscilloscope
as
shown
below.
dl
Waveform
on
Oscilloscope:
Note: Set the sweep time to longer for easy checking
the waveform
lobo 00] : \ : Speed Detecting Head Output Level Adjustment
90000
|
A
A
Power
switch:
ON
~Adjustment
Location—
a
B
oN,
1.
Adjust
the
position
of
the
head
so
that
the
VIVM
speed
detecting
head
(HMG)
BVTT,
3x12
Ghee Louie
:
reading
is
more
than
15
mV
ac
at 33+,
rpm.
:
°
2. Make sure that the head does not touch the turn-
table and tighten the screws securely.
Note: The clearance between the magnet coated tim and
the speed detecting head is more than 0.3 mm.
VTVM
frange: ac)
1000uF | wea
1000uF | |
16V t
t
more than
15 mV ac
(33 Y3 rom)
45