Technics SL-BD21 - Page 7

@
MEASUREMENTS
AND
ADJUSTMENTS=s
English
==
© Arm-lift height adjustment
The
arm-lift
height
(distance
between
the
stylus
tip
and
the
record
surface
when
the
cueing
control
is
at
the
“YZ”
position)
has
been
adjusted
at
the
factory
to
approximately
5 to 7 mm
(3/16"—9/32").
|f the clearance is too narrow or too wide, turn the
adjustment
screw
clockwise
or
counterclockwise.
Clockwise rotation
—distance
between
the
record
and
stylus
tip
is
decreased.
Counterclockwise
rotation
—distance
between
the
record
and
stylus
tip
is
increased.
|
Adjustment
© Automatic return adjustment
1. Clamp the tonearm to the arm rest.
2. Remove the rubber cap.
3.
Turn
the
screw
with
a
screwdriver,
clockwise
or
counter-
clockwise
as necessary.
If
the
tonearm
tends
to
return
to
the
arm
rest
before
the
play
has finished,
—turn counterclockwise.
If
the
tonearm
fails
to
return
after
the
final
groove,
—turn clockwise.
©
Rotating
speed
When the turntable drive/control IC (IC 101) or the variable
resistors (VR101, 102) are changed, adjust the rotating
speed in the following procedure.
1, Set the speed selector switch to the “33” position.
2, Turn VR101 with a screwdriver from the bottom of the
set to the rated rotation (33-1/3 rpm) and check the
rotation with a strobe while adjusting the speed.
3. Set the speed selector switch to the “45” position.
4. Turn VR102 with a screwdriver from the bottom of the
set to the rated rotation (45 rpm) and check the
rotation with a strobe while adjusting the speed.
Note:
Be
sure
to
make
the
adjustment
for
33-1/3
rpm
first.
vR101
vRi02
(33-173
rpm)
(45
rpm)