Technics RS-676US

A.
SUBJECT:
Modifications
of
RS-676US
Change of DC Motor (for Capstan)
REASON:
For
improvement
more
performance
and
countermeasure
of
safety.
MODIFICATION:
M55 QMD1340D —> QMD1340XPE
INTERCHANGEABILITY:
The new parts can be used to the former sets.
CHANGEOVER:
.
From
the
production
of
July,
1974.
(From
serial
number
RG4...onward)
Change of Takeup Reel Table Assembly
REASON:
In order to stabilize takeup tension.
MODIFICATION:
M71 QxD0040 ——> QXD0047A
INTERCHANGEABILITY :
The new parts can be used to the former sets.
NOTE:
Because
the
plate
spring
is
not
used
to
the
new
reel
table
assembly,
the
takeup
tension
can
not
be
adjusted,
but
takeup
tension
is
stabilized
by
new
reel
table
asseembly.
CHANGEOVER:
From
the
production
of
September,
1974.
(From
seriel
number
RI4...onward)
Change
of
Idler
Lever
Spring
REASON:
In
order
to
stabilize
takeup
tension
which
has
been
liable
to
become
unstable
at
low
temperature.
MODIFICATION:
M77 QBT1440 —— QBT1409M
INTERCHANGEABILITY:
The new parts can be used to the former sets.
CHANGEOVER:
From
the
production
of
May,
1974.
(From
serial
number
RE4...onward)
Change
of
DC
Motor
(for
Fast
Forward
&
Rewind)
REASON:
in
order
to
prevent
malcontact
of
relay
switch
(S215,
S216),
the
motor
is
changed.
Malcontact
of
relay
switch
is
occured
by
the
reversed
electromotive
force
of
FF/REW
motor.