Technics SL-DL1 Service Manual

Speed selector P.C.B.f@
Neon lamp P.C.B.
Pitch control (VR601)
SL-DL1 7} BS
Operation P.C.B. BJ
Voltage adjuster switch (S402)
Power switch (S401)
Power transistor P.C.B.
Power P.C.B.E)
m FEATURES
Dynamic balanced linear tracking tonearm employs
optical sensor and groove deflection angle detection
for extremely stable and accurate tracking.
The linear tracking tonearm moves across the record surface
in the same way as the cutter head used to make the record
in the first place. Therefore there is virtually no tracking
error or skating force.
Located by the stylus is an optical sensor that detects
tracking conditions by means of groove deflection angle.
Based on this information, tonearm movement is controlled
to maintain optimum tracking at all times.
A precision DC motor is used for tonearm drive to
assure quiet and accurate control.
Simple base operation. Completely automatic play.
Turn on the power, put on a record, close the top and press
the start switch. After that, everything is handled by the
microcomputer and optical sensor which automatically
detect record size, select correct speed and cue the tonearm
to the lead-in groove.
For non-standard records, front panel speed selectors let
you select the correct speed manually (large 45s, or small
33-1/3 records, for example).
The tonearm automatically returns to the start position
after completing play. The tonearm does not move if no
record is on the platter.
Complex operation also possible.
Main P.C.B. EY ae sets : : : :
Baulee
transformer}
A
precision
DC
motor
and
low-friction
slide
bearing
assure
Although
easy
operation
is
a
basic
feature
of
this
unit,
accurate tonearm movement. complex functions are also possible. The “search” function
Reset
switch
(S307)
A
4-point
pivot
bearing
gimbal
suspension
developed
by
allows
start,
stop
switches
controlled
inward
and
outward
Technics reduces friction and raises sensitivity while con movement of the tonearm at slow and fast speed, plus fine
tributing to smooth tracing ability. control in approximately 1 mm steps.
Disc size detector LED P.C.B.
eh Start Switch Stop Switch
%* $309 (end detection switch) will pressed
be
replaced
by
MN1400PE
of
aaa
aaa
Pressed
Pressed
which the end detection unit is Pressed momen- continuously Pressed momen- continuously
built
into
MN1400PA
(1C301)
in
Dust
cover
tarily
(less
than
|
Pressed
tarily
(tess
than
|
Pressed
+
the course of manufacture. Cueing ene'sécond) intermittently Lightly Hard one second) intermittently Lightly Hard
Disc size sensor P.C.B. Rest position switch (S308) Bpidenn as o- Bee ie i ee te
End position switch (S309) Cartridge Cueing up Tonearm moves Tonearm Tonearm moves Tonearm
(¥) inward in moves es ————_ | outward in moves Moves
Tonearm - small steps. inward, aster smal{ steps. outward. faster.
Arm drive wheel
Tonearm rises Tonearm | Tonearm Tonearm | Tonearm
A ds Cueing down and returns to rises rises rises rises
rm
_
drive
motor
Arm
base
start
position
—————_———
and
and
gee
Sa
and
and
(¥) and begins play moves moves moves moves
again. inward. faster, outward. | faster.

Technics SL-DL1 Specifications

General

Brand	Technics
Model	SL-DL1
Category	Turntable
Language	English