Y
TRANSPORT MECHANISM
Driving of Capstan
Fjgure l.
{Aj
Motor
(B)
Driving Belt
(flat
belt)
(C)
Capstan
(D)
FlYwheel
High-speed rotation of Mot /
(A)
is reduced by D/trire'
Br,
(B)
and transmitted to Capstan
(C),
which is connected
to Flywheel with ample inertia and €nables rated
rotaiion
by absorbing
mino.
rotation
distortion ofDotor itself.
Capstan Rotation 606 r.p.m.
at 7-%'(l9cn)pe. sec.
303r.p.m. at 3-%'(9.5 cm)
per sec.
l5l.5r.p.m, at l
-16'
(4.7s
cmlper sec.
Motor Rotation 2,900 to 1,450 r.p.m. at 50 cps.
3,480 to 1,74{r.p.m. at 60cps.
Fig.
I
Driving of Pinch Roller
Put tape between rotating capstan and pinch roller
and
push pinch
rouer
against
capstan,
this will transport
thc
tape
at rat€d spe€d.
Th€ appropriate pressure of
pinch
roller is between I,000 to I,150
grams at the tape sp€ed
of 7-%'
(19cm)
per s€cond.
R€coding and Play Back
TuJ[ rhe RECORD, PLA rB,4Cf
knob
(A)
to
"PLAY"
position, and pinch roller presses against capstan
to move
tape at the rated
sp€ed.
At the same time,
Idlel
(B)
moves
between
Motor &tshitag
ICI
znd t}:'e Tahe-Ut Reel Spindle
lD)
b rr^ns'lr.it the motol /rldtro,
to
{D)
so that th€
tape is
moved and wound on the take-up re€I.
The Tak€-Up Reel Spindle Base is made up of
two plas-
tic
rollers
(l
and 2l
with a clutch felt in betw€€n.
The ldler
is rot^titg the
plastic
mUel
(2)
under. Therefore, the tape-
winding friction is adjust€d by
the
slipping
of the felt
to
enabl€ rated
winding of the tap€.
on the other ha d, the S*pfb
Reel Sbtndle
IHI
h^s a
Blake
lo e/
lEl
hwg on the Plastic
Roll€r
{4)
under
which
provides
app.opriate back tension by
the .lutch fet slipp-
ing
to the rotation ofthe Pull€y
(3)above.
To prevent
accidental er^sure, the Record lnterloch
But-
to,
(F)
mut be depressed
before the RECORD,
PLAY-
BACK
knob can be moved
to the
"REC"
position.
The
Safet! dnice
lclls
depressed to ente.
the record mode
(See
Fisures 2 and
3)
ffi
\
ir
Slipping Rotation
Fig. 2
-6-
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