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3-1-13.
Direction Change Stopper Position
Adjustment
1.
Loosen
the
stopper
holding
screw.
2.
Place the unit in the FWD
(or REV)
mode.
Adjust
the
position
of the
direction
change
stopper
so
that
the
clearance
between
the
4.
Apply lock paint to the screws.
pinch roller
REV mode
FWD mode
_ direction change lever
io
screw
screw
a
direction"
change stopper (L)
"~. direction
change stopper (R)
4mm (5/32")
in
FWD mode
4mm (5/32")
in REV mode
Fig. 3-15.
Direction change stopper position
adjustment
3-1-14.
Pinch Roller Pressure Adjustment
1.
Make a loop in a piece of string and attach the
0 to 1,600 g (3 1b 8 02) spring scale around the
base of the pinch roller shaft. See Fig. 3-16.
Pull the scale. The pulling direction should be
aligned
with
the
pinch
roller
shaft
and
the
capstan.
Check
the
reading
when
the
pinch
rolier just stops rotating. It should be 1,200 to
1,400 g (42: to 49 oz ). If necessary, change the
hooking
position
of the
spring.
Adjust by changing the hooking position.
strong
a
weak
—~20—
REV mode
FWD mode
pinch 'roller
spring scale."
Fig. 3-16.
Pinch roller pressure adjustment
3-1-15.
Direction Switch Joint Rod Stroke Adjustment
1.
Place the unit in the STOP mode. Push the tip
of
the
direction
switch
lever
slowly
in the
direction
shown by the arrow
in Fig. 3-17 as
far as the slide switches on the playback and the
bias osc.
circuit
boards are changed.
(Do not
move the position of switch).
2.
Push the REV button. Make sure that the tip of
the lever is pushed
moreover
by 0.5~1
mm
(1/64
~3/64") in the direction shown
by the
arrow
by the
solenoid.
3.
Change the mode
from the FWD
to REV and
vice versa several times and make sure that the
slide switches are changed perfectly.
4.
Change
the position
of direction switch joint
tod to the direction
change lever if necessary.
0.5~1mm
direction switch joint rod
(1/64~ 3/64")
=
i
i
|
_—!
iu
} Change position of
sy
joint rod.
Remove direction switch joint rod |
by bending here.
i
'
1
direction
switch lever
Fig. 3-17.
Direction switch joint rod stroke
adjustment
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