Disconnect the
ac
power
cord
and
remove
the top
and
bottom
covers.
Mark
and
disconnect the solenoid leads.
Loosen
the lock nut
on
the solenoid plunger
and
unscrew the chain
link
and
modified screw
from
the plunger.
Dismount
the solenoid
from
the
deck
by
removing
the
two
10-32 screws driven
from
underneath the deck.
Mount
the replacement
sole-
noid
on
the deck. Reconnect the solenoid leads. Reinsert the modified
screw
and
chain
link
in the plunger. Perform the
deck
adjustments
described in paragraph 5-35.
5-33.
SOLENOID
CHAIN
REPLACEMENT
Refer to
Drawing
D906-3122.
Disconnect the
ac
power
cord
and
remove
the top
and
bottom
covers.
Unhook
the spring
from
the chain underneath the deck,
remove
the
master chain
link
and
slip
the chain out of the modified screw. Manually
raise
the pressure
roller
and
remove
the screw
from
the
roller
shaft.
Insert
the replacement chain in the modified screw.
With
a small
pair
of
needle nose
pliers,
fit
on
the master
link
and
secure
it
with the lock.
Manually
raise
the pressure
roller
and
reinsert
the screw through the
chain.
Feed
the chain through the
deck
opening
and
around the chain
mounting clamp. Underneath the
deck
reconnect the spring
and
chain.
Finally,
perform the tape
deck
adjustments described in paragraph 5-35.
5-34.
SOLENOID
PLUNGER
ADJUSTMENT
Solenoid plunger
travel
is
determined
by
the
setting
of
the
adjustment screw
which
links
the plunger to the solenoid chain,
and
is
set
to bring the pressure
roller
against
the capstan drive
shaft
just
prior
to the plunger
hitting
its
limit
of
travel.
With
no
cartridge
in the machine, hold the
Ready
microswitch
open
and
push
the
START
pushbutton; the solenoid will pull the pressure
roller
into
the drive
shaft.
Turn
the plunger clockwise in one-half turn
increments while
alternately
pushing the
START
button
until
an
audible
noise,
the plunger
hitting
''bottom'',
is
heard with solenoid
action.
Now
turn the plunger counter-clockwise
for
1 1/2 turns
beyond
the point
that
the noise has disappeared
and
tighten
the locknut snugly
against
the
end
of the plunger.
5-35.
5-36.
I
Non
I
THE
MOTOR
ALIGNMENT
HAS
TO
BE
PERFORMED
PRIOR
TO
THIS
ADJUSTMENT.
TAPE
DECK
ADJUSTMENTS
PRESSURE
ROLLER
ADJUSTMENT
Refer to
Drawing
D906-3122.
32
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