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Sony APR-5000 Technical Service page 145

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STEP 4
Pull the
spring
scale so that the reel motor rotates
in
the counterclockwise
direction
.
reading
at the
point
at which the reel motor begins
to rotate
.
attain an
average
reading
,
should
be
360
g
(
+
/
-
80
g
)
.
Observe the scale
Perform this action several
times to
The
average reading
If
the
reel motor brake
torque
is not within
specification
,
remove the
top rear
cosmetic cover
(
the cover for the
TIB
board ) and
adjust
the brake
spring
tension as shown
in
Figure 6
-
6
.
STEP
5
Remove
the
500
g
spring
scale from the brake
torque
fixture and
replace
it with the 200
g
spring
scale
(
#
7
-
732
-
050
-
40 )
.
While
observing
the
reading on
the
spring
scale
,
pull
the scale such that the reel motor rotates in the
clockwise direction
.
Observe the scale
reading at
the
point
at which the reel motor
begins to
rotate
.
Perform this action several times to attain an
average reading
.
The
average reading
should be
80
g
(
+
/
-
40
g
)
.
STEP 6
STEP 7
NOTE
:
Since both the clockwise and counter
-
clockwise
torque
of the reel motor
brake
assembly
are
adjusted by
the same
spring
,
both
readings
will
be interactive
.
Hence
,
if the clockwise direction is
adjusted
the
counter
-
clockwise direction is also
adjusted
.
SPRING
ADJUSTMENT
HOLES
O
o
0
o
o
o
Figure 6
-
6
.
Reel Motor Brake
Assembly Spring Adjustment
n
6
-
14

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