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I_
-
2.6
PINCH
ROLLER
PRESSURE
STROKE
AOJUSTMENT
1.
Set
the
deck
in
the fonrvard
or
reverse
play
mode.
2.
Adjust
by
turning the
pressure
stroke
adj. nut
(Fig.24)
so
that
the
clearance between
the
pin
and the stopper cushion
is
about
1.0mm.
3.
Since
the
clearance
is
produced
at
one
side
(left
or right),
adiust-
ment
f
or
this
side
only
is
permissible.
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a'ryti.
pinch
roller
Either the
left
or right
should
have a
clearance
of about
1.0mm.
7+?1mmiEE
(t6L'bbh')
Fig.
2-6
2.7
PINCH
ROLLER
PRESSURE
MEASUREMENT
t{OTES:
1.
The explanation below
applies
to
both
the
left
and
right pinch
rollers.
2.
Both
pinch
roller
pressures
are
automatically
set
with
equal
value.
l.
Hold both the
left
and
right
tension
arms
in the
upper positions
using
rubber
bands,
string
etc.
2.
Set
the
deck
in either play
mode
with
no tape loaded.
3.
Attach
the
spring
scale
to
the pinch roller
as
shown
in
the
figure.
4.
Draiv
the
pinch
roller
away
from
the capstan
shaft (in the
direc-
tion
of
a
line
intersecting
the
centers
of the
capstan
shaft
and the
pinch roller) until the
capstan
shaft and the pinch
roller
are
se-
parated.
Return the
scale
back
until the
pinch roller
just
begins
to
turn.
The
scale
should
then
be
reading
as
follow.
Reference
value:
1.35k9
to
1.9k9
(3.0
lbs
to 4.2
lbs)
lf
the
reading
is
out of specification,
replace defective part(s).
There are no adiustable
parts.
Fig.2-.
5.
6.
raght capstan
right
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