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5.
FF/REW
Operation
1.
As
with the
head
operations a brush
is
attached
to
the
back
of
gear
"P" and
using patterns
and
the brush,
posi-
tion
sensing takes place
and
this
controls the
FF/REW
operation.
2.
Sub-motor
2
goes through
gears "L",
"M"
and
"N"
and
turns
gear "P".
When
gear
"P"
turns,
arm
"I" rotates
by
means
of
arm
"J".
Arm
"I"
rotates
the
FF/REW
idler
gear
and engages
it
with the
reel unit.
Gear L
Gear
M
Gear
N
3.
ADJUSTMENT
3.1
AZIMUTH
ADJUSTMENT
Reverse azimuth
adjustment
Tape
running
direction
Fig.
19
•
To
Adjust
1.
Play
"A"
side
of
STD-341
A
(10kHz,
-20dB).
Adjust
each screw
for
maximum
output
in
forward
and
reverse
directions.
2.
Play
"B"
side
in
forward
and
reverse directions to confirm
adjustment.
3.2
TAPE SPEED
ADJUSTMENT
Capstan motor
Fig.
20
•
To
Adjust
1.
Reproduce
STD-301
(3kHz,
—
10dB).
Adjust
the
semifixed
resistor
so
that the
frequency
counter
shows
3,
010Hz
(
+30
Hz,
-30Hz).
8
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