Sony TA-2000F - Service Manual Supplement; Introduction; Description of the Modifications

SONY.
General
Export
Model
No. 1
July, 1971
SERVICE
MANUAL
SUPPLEMENT
Subject:
Changes
on
Model
TA-2000F
and
Service
Manual
Correction
1. INTRODUCTION
SONY
has
changed
the
design
of
knobs
equipped
in
TA-2000F
as
given
in
Table
below.
Note
that
the
new
knob
is
a
serrated
type
as
illustrated.
In
addition,
some
transistors
are
changed
in
the
amplifier
section.
Notice
that
there
is
printing
error
concerning
Idss
rank
illustration
in
the
service
manual.
To
avoid
confusion
make
the
following
correction.
2.
DESCRIPTION
OF
THE
MODIFICATIONS
2-1. NEW KNOB
Former
TABLE 1. PARTS CHANGED
Description
‘a Former
VOLUME, TONE(BASS, TREBLE) control knobs,
FUNCTION,
MODE
switch
knobs
X-20299-04
X-48049-04
BALANCE
control
knob,
HEADPHONE,
METER,
FILTER,
MIC
LEVEL
knobs,
IMPEDANCE
X-205
19-03
X-48066-11
SELECTOR
knob
Applicable Serial Numbers -
500,201 and later
. Interchangeability
New and old knobs are not interchangeable.