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11. ADJUSTMENTS
11.1 AUTO-RETURN
ADJUSTMENT
1.
Turn the auto
retum
adjustment
screw full
around counter-clockwise.
2.
When the auto return adjustment screw is turn-
ed back a little at a time clockwise, the tone-
arm
will commence
to return
to the outer
circumference.
3.
Stop turning the adjustment
screw once the
stylus tip is 33mm away from the center shaft.
4.
Once the above adjustment procedure has been
completed, check
that
the
tonearm
returns
automatically as designed.
11.2 ARM-ELEVATION ADJUSTMENT
To
proceed
with
the
elevation
sheet
height
adjustment,
insert
the
hexagonal
wrench
(for
3mm)
into the hole at the front of the EV sheet
and
rotate it clockwise to reduce the height and
counter-clockwise
to
increase
the
height.
The
height of the
stylus
tip from the record surface
is 7 +2mm.
11.3 MOTOR ADJUSTMENT
1.
Turn the power
on
and start the turntable
platter rotating.
2.
Turn the speed
adjustment
knob
around
to
the mechanically center position.
3.
Adjust VR1
and VR2 in the motor assembly
so that the stroboscope appears to be station-
ary.
Again this adjustment is performed from
below.
4,
Adjust VR2
for 33 rpm speed, and VR1
for
45 rpm.
o.
Always adjust at 33rpm.
Screwdriver
Fig. 11-1
Auto-return adjustment
Elevation sheet
Fig. 11-2 Arm-elevation adjustment
VR2
33rpm
VR1
45rom
Fig. 11-3 Motor adjustment
19
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