Teac A-4010GSL - Reel Motor Torque

REEL MOTOR TORQUE
IMPORTANT:
Be
sure
the
full
required
line
voltage
is
applied
and
that
the
unit
is
set
up
for
proper
line
frequency.
Holdback
Tension
-Forward-
1.
Tape
or
block
the
automatic
shut-off
arm
in
the
ON
position.
2.
Place
an
empty
reel
RE-702
(2"
diameter
hub)
and
spring
scale
on
the
left
reel
table
as
shown
in
figure.
7
3.
Rotate
the
reel
table
clockwise
and
wind
several
turns
of
string
around
the
hub.
4.
Place
the
unit
in
the
forward
play
mode
(
Be).
5.
Pull
the
scale
away
from
the
reel
against
the
motor
torque
with
a
steady
smooth
motion.
”
6.
Note
the
spring
scale
reading
while
it
is
in
steady
motion.
The
spring
scale
reading
should
be
50°52
grams(torque:
2501260
g-cm).
7.
If
adjustment
is
required,
move
the
slider
of
R-6
(D)
until
cor-
rect
tension
is
obtained.
Holdback
Tension
-Reverse-
8.
Place
the
empty
reel
and
spring
scale
on
the
right
reel
table.
9.
Place
unit
in
the
reverse
play
(~@)
mode.
NOTE:
Rotate
the
reel
table
counter
clockwise.
10.
Repeat
above
steps
3,
5,
6
of
forward
holdback
tension
section.
11.
The
spring
scale
reading
should
be
5052
grams
(torque:
250260
g-cm).
12.
Adjust
the
slider
of
R-8
(B)
until
correct
holdback
tension
is
obtained.
CHASSIS
he df. ad
TT p nord cama
BNOYO!) dN 34V1:NOISNAl HOVS
TAKE UP TORQUE: BACK TENSION
TEAC
RE-702
7204-30
oval
[Prog
LEFT MOTOR
ein Geta
|
mea
@-
sINCREASE TORQUE DIRECTION D-tt-ll
Fig.
5-4
Torque
Measurement
Fig.
5-5
Tensioning
Resistor