Tascam 3030 - 2-4 Brake Torque Measurement; 2-5 Pause Position Adjustment

-
2.
3.
4.
24
BRAKE
TOBOUE MEASUREMENT
l. Pface
an empty 7" reel,
connected to
a spring
scale
by
a
string,
on
the reel table.
Pull
the
scale away
from
the reel
and read the
scale
indication
only
when the reel
table is
steady motion.
Do steps 1 and
2
for
each measuring
condition,
(A)
through
(01
in Fig.
2-3.
The values
are as chart in Fig.
2-3.
Fig.2-3
2.5
PAUSE
POSITION
ADJUSTMENT
1.
Place
the
deck
in the
pause
mode.
2. Adjust
by
turning
the
pause positioning
nut
so
that
the clearance
between
the capstan
shaft and the tape is
0.5mm
to 1.0mm.
3. 0f the two
capstan shaft/pinch rollen,
adjustment is allowable
only
for
the
side
having the
narrower
clsarance.
4.
Check
that,
by repetition
of
play
mode t0
pause
mode and
stop
mods to
pause
mode, there is
clearance at
both
sides.
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pause positioning
nut
pressure
stroke
adjusting nu1
Fig.24 Pause
position
and
pinch
roller
pressure
stroke adjustments
Fig.2-S
Pause
position
adiustment
t
t
a
L
,/7 tal
F. n lal
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t.2-1
.9
0.7
0.zt-l
F
Et)
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r.2-1
.9
0.7
Htl
:
kg.cm
(ts
)vt
6+tlg)
Itr
Il
spring
scale
t
Forward
direction
(Bl (C)
1
.2
to I
.9kg-cm
(
I 7 to
26oz-inch)
1
Reverse direction
(A) (Dl
0.7kgrm
(9.702-inch)
or
les
Left/right deviation
0.2kg-cm
(2.802-inch)
or les
ItOTES:
l.
The
revene
direction
values are
reference.
2.
The
specification of left/right
deviation
only
applies for
fonvard
direction
torques.
Torque calculating formulas:
(l)
Torque
(in
g-cm
or oz-inch)
=
Force
or Weight
(in
g
or oz)
x Badius
(in
cm or inch)
l2l
Conversion
of
g-cm
to oz-inch:
g+mx0.0139=oz-inch