Technics SL-BD22D Service Manual

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MEASUREMENTS
AND
ADJUSTMENTS
ARM-LIFT HEIGHT ADJUSTMENT
The arm-lift height (distance between the stylus tip and the 5 mm ~ 7 mm (3/16" ~ 9/32")
record surface when the cueing control is at the "2"
position) has been adjusted at the factory to approximately
5 to 7 mm (3/16"—9/32").
If 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.
Auto-return, \
adjustment screw
SPEED
ADJUSTMENT
(PITCH
CONTROL)
There
are
strobe-lines
cut
on
this
turntable
platter
to
indicate
correct
rotational
speed
45rpm
If
the
strobe-line
appears
to
be
moving
as
the
turntable
33-1/3rpm
SoH
rotates,
adjust
while
playing
a
record.
45rpm
60Hz
1, Set the speed
selector
to the speed
to be adjusted
33-1/3¢pm
2.
Push
the
power
switch.
The
strobe-illuminator/pilot
lamp
will
light
up
and
the
platter
will
rotate.
3.
Watch
the
dot
pattern
on
the
side
of
the
platter.
Turn
the
pitch
control
one
way
or
the
other
until
the
dots
appear
to
stand
still.
This
is
the
correct
speed
4.
Turning
the
pitch
control
in
the
“+”
direction
increases
the
speed.
5.
Turning
the
pitch
control
in
the
“—"
direction
decreases
the
speed.
The strobe-line
for 60 Hz. 33-1/3 rpm
seems to be stationary
ROTATING SPEED
When the turntable drive/control IC (IC 101) or the variable
resistors (VR101, 102) are changed, or if the rated rotation
is not reached even when the pitch control knob is turned,
adjust the rotating speed in the following procedure.
1, Set the speed selector switch to the “45” position.
2. Turn VR101 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.
Set the speed selector switch to the “33” position.
4. Turn VR102 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. VR102
e
Note:
Be
sure
to
make
the
adjustment
for
45
rpm
first.
VR101
(33-1/3
rpm),
(45 rpm)

Technics SL-BD22D Specifications

General

Brand	Technics
Model	SL-BD22D
Category	Turntable
Language	English