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Parts Identification - Technics SL-220 Service Manual

Frequency generator servo automatic turntable system
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@ PARTS IDENTIFICATION
Phono cables
AC power plug
Turntable base
45-rpm adaptor
Turntable mat
Turntable platter
Center spindle
Arm clamp
Strobe dots
Speed selector
Pitch control knobs
@ FEATURES
New Type Frequency Generator Servo Control
One of the major secrets behind the razor-sharp accuracy
and superb quality of sound
lies in the new type (Fre-
quency
Generator)
servo
controlled
DC
motor,
and
greatly improved
highly rellable iC circuitry.
Even the
slightest hint of speed change and drift is corrected im-
mediately.
Electronic Speed Switching
Even though this turntable is belt-driven, gone is the old
conventional
pulley
type
speed
changing
mechanism.
Speed
switching
in this unit is fully electronic, thereby
adding to the high degree of mechanical
precision and
reliability.
All Front-Panel Controls
The advancement to complete front-panel contro! marks
a big step forward
in turntable operation, not only be-
cause of the greater convenience, but also because of the
greater protection from dust, as the dust cover can stay
closed.
Tonearm Cueing Controlled from Front Panel
The
tonearm
is raised and lowered softly by a viscous-
damped cueing lifter. Even with the dust cover closed, a
cueing can be easily performed as the control is located
on the front panel.
Output terminals
Ground wire (GND)
Hinge
Balance weight
Stylus-pressure ring
Anti-skating control knob
Arm rest
Locking nut
Headshell
Strobe iluminator/pilot lamp
Cueing control
Stop knob
Fig. 1
High Sensitive Gimbal Suspension
The recently developed high sensitivity tonearm bearings
featured
in this unit achieve a very high degree of per-
formance.
In
addition,
the
universal-type
detachable
headshell features all gold-plated pin connections to en-
sure unwavering reliability through many years of use.
Independent Pitch Controls
Permits record speed (at both 33-1/3 and 45 rpm) to be
varied by up to 6%.
Precision Strobe IIluminator/Pilot Lam p
With the built-in strobe illuminator/pilot larap, accurate
speed adjustments can be made rapidly and tasily.
Anti-Skating Force Mechanism
The well-designed
anti-skating force mecha ism ensures
minimum
side
thrust
with
different
cartridges
and
guarantees accurate center-of-the-groove tradeing.
Automatic Tonearm Return
For
greater
operational
convenience,
thé
tonearm
returns to the arm rest automatically, folloy ed by auto-
matic shut-off of the motor.
Detachable Dust Cover

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