Motor Adjustments - Pioneer PL-450 Service Manual

10.2 ARM-ELEVATION ADJUSTMENT
@ Arm Elevation Height Adjustment
1. Turn the arm elevation lever up to raise the
tone arm.
2. Adjust the screw so that stylus is 23 mm above
the panel. When the adjustment screw is turned
counterclockwise, the stylus lowers.
10.3 MOTOR ADJUSTMENTS
Place the record player on blocks as shown in
Fig. 10-3 and adjust the motor from the under base.
1. Turn the arm elevation lever up to raise the
arm.
2.Place a strobo sheet on the turntable, move
the arm to the turntable side, and rotate the
turntable.
3. Adjust semifixed resistors VR1 and VR2 of
the motor ass'y so the strobo of the strobo
sheet appears to the static.
4. First adjust VR2 for 33 1/3 rpm and then ad-
just VR1 for 45 rpm.
Screw driver
Screw driver
Fig. 10-3 Motor adjustment
17