Marantz SD1010 - Page 9

5,
MECHANICAL
ADJUSTMENTS
5.1
ADJUSTING
THE
FLYWHEEL
THRUST
Adjust
the
thrust
screw
at
the
flywheel
bracket
until
the
clearance
between
the
capstan
tail
end
and
thrust
bearing
is
0.1
to
0.3mm
as
shown,
using
a
phillips
screw
driver.
For
adjusting,
feel
of
axial
dropping
of
the
flywheel
for
proper
clearance
as
this
cannot
be
seen
through.
Then
paint
the
screw
to
lock.
va.
Pom LAL
We A
5.2
ADJUSTING
THE
PAUSE
TIMING
Set
the
unit
in
the
play
mode
of
operation.
Then,
adjust
the
bend
angle
of
the
pinch
roller
bracket
arm
(point
A
in
the
line
drawing)
unti!
the
clerance
be-
tween
the
pinch
roller
and
capstan
is
0.1
to
0.3
mm
at
the
time
when
the
take-up
reel
is
stopped
by
slowly
pressing
the
PAUSE
pushbutton
down,
NOTE:
To
widen
the
clearance,
make
the
bend
angle
smaller
(in
the
direction
C).
To
make
the
clearance
narrower,
widen
the
bend
angle
(in
the
direction
B).
A
mS
iP.
5.3 ADJUSTING THE PINCH ROLLER PRESSURE
Measure the pressure of the pinch roller using a gauge
as shown. For measurement, draw the pinch roller in
the arrow direction in which it is detached from the
capstan shaft and gradually return it. toward the
capstan. Read the gauge at the time when the pinch
roller starts turning. The standard pressure is 30050 g.
If the pressure is out of the range, bend the pinch
roller spring around the point A in the direction B or
Cc.
NOTE: To make the pressure strong, bend in the
direction B. To make the pressure weak, bend
in the direction C.
5.4 ADJUSTING THE PLAY TIMING
It is normal that when the PLAY pushbutton is de-
pressed, the take-up reel table turns first, then the
pinch roller is rotated. The reel table and pinch roller
must not start turning at the same time.
NOTE: Make certain that such a subsequent operation
is made irrespective of locking state is de-
pressed slowly without loading the tape.
1. Checking for Adjustment
Check whether or not the clearance between the pinch
roller and capstan is 0.2 to 0.5 mm when the take-up
reel table starts turning with the PLAY pushbutton
depressed slowly.
2. Adjustment
Bend the pinch roller bracket at the point that touches
the head chassis stopper. In the line drawing, benciing
left reduces the clearance between the capstan and
pinch roller.
NOTE:
Make
certain
that
the
pinch
roller
bracket
does
not
leave
touching
the
head
chasssis
stopper
in
the
play
mode
of
operation
as
a
result
of
excessive
bending.
Q2~O5Smm
CAPSTAN SHar~T