Phono Motor Speed Adjustment; Stylus Height Adjustment - Pioneer PL-44F Service Manual

6. The voltage difference is decreased by ttuning
VR1 clockwise, and increased byturning counter
clockwise (see Fig. 9.4).
Note:
Shade the sensor section from erternal
light during this
adjustment.
9.3 PHONO MOTOR SPEED ADJUSTMENT
1. Remove the bonnet and switch the power on.
Place a stroboscope on the turntable platter,
and press the MANUAL
key to put the ttun-
table into manual play mode.
2. Switch the speed selector to 33-1/3rpm, and
adjust VR2 to obtain the "stationaxy" strobo
effect.
3. Then switch the speed selector to 45rpm, and
adjwt VR3 to again obtain the ,,stationary,'
strobo effect.
4. Turntable speed is increased by turning the
adjustment controls (VR2 and VR3) clockwise,
and decreased by turning counter clockwise.
9.4 STYLUS HEIGHT ADJUSTMENT
1. Remove the bonnet, switch the power on, press
the OPEN/CLOSE key, and pull the slide base
out forwards.
2.Place a record on the turntable platter, and press
the MANUAL key to move the tonearm forwards.
3. While holding the tonearm in the left hand,
adjust the adjustment screw with
a wrench
(1.5mm) passd through the adjustment hole as
shown in Fig. 9.6.
4. Adjust the stylus to a height 5 to gmm above
the reeord.
Fig. 9.5 Phono Motor Speed Adjustment
Wrench (1.Smml
Tonearm
Height adjustrnent screw
fl
rill U
flru fl
U f l
vnzffg
y p j V R l
B
-
b
Fig. 9.6 Stylus Height Adjustment
_i
1 9