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Teac MT-20D-IO - Page 148

Teac MT-20D-IO
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The
forward
winding
encoder
frequency
is
indicated
to
the
display
DATA
1 on
SOA,
and
the
reverse
one
to
DATA
2
(90
ips
winding).
(p)
Adjust
R44
on
the
PCBA
Drive
Control
until
both
the
encoder
frequencies
are
within
8.58
kHz
to
8.60
kHz
(center
value:
8.594
kHz).
(q)
Key
in
"F"
to
stop
the
operation.
(r)
Key
in
"8".
The
indicator
HIS
on
SOA
goes
out
(low
speed
mode).
(s)
Key
in
"BA". The
tape
is
wound
forward
and
reversely
at
30
ips.
(t)
The
forward
winding
encoder
frequency
is
indicated
to
the
DATA
1
display
on
SOA,
and
the
reverse
one
to
the
DATA
2.
(u)
Adjust
R43
on
the
PCBA
Drive
Control
until
both
the
encoder
frequencies
are
within
2.86
to
2.88
kHz
(tne
center
frequency:
2.865
kHz).
(v)
Key
in
"F"
to
stop
the
operation.
(w)
Key
in
"8".
The
indicator
HIS
on
SOA
lights
up.
Remark
1.
The
tape
speed
should
be
adjusted
in
the
order
of
90
ips
(R44)
and
30
ips
(R43)
without
fail.
If
R44
is
adjusted
later
than
R43,
the
tape
speed
of
30
ips
is
also
changed.
2.
There
is
such
a
MTU
that
a
fixed
resistor
is
used
for
R43.
In
such
a
case,
R43
need
not
be
adjusted.
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