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Pioneer PL-110 Service Manual page 12

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9. ADJUSTMENTS
9.1 AUTO.RETURN
l.Insert
a small flat-head screwdriver into the
player through the opening as shown in Fig. 9-1,
and turn the index cam counterclockwise until
it stops.
2. Hold ttre tone arm with your hand and move it
slowly toward the center spindle. When the
needle point of the tonearm reaches at a position
45 to 35 mm from the center of the spindle, the
tonealm will no longer move.
3. Insert the screwdriver once again into the player
through the opening, tum the index can clock-
wise slowly. The tonearm will move gradually
to the center spindle. Adjust gap between the
center spindle and needle point of the tonearm
to about 32 mm.
Note;
When this gap cannot be adjusted to 32 mrn, the
PU plate (B) ae*mbly
b not installed correctly.
Reinstall the PU plate (B) assembly, and readjust
thie gap.
9.2 ARM-ELEVATION ADJUSTMENT
The height of the stylus tip from the record sur-
face is 8 t 3mm (Fig. 9-2).
9.3 MOTOR ADJUSTMENT
1. Turn the power on and start the turntable
platter rotating.
2. Adjust VRl
and VR2 in the motor assembly
so that the stroboscope appears to be station-
ary. Again this adjustment is performed from
below.
3. Adjust VR1 for 45 rpm speed, and VR2 for
33 rpm.
4. Always adjust at 33 rpm.
Screwdriver
B
Fig. 9-1 Auto-return adjustment
Fig. 9-2 Arm-elevation adjustment
-
I
Fig. 9-3 Motor adjustment

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