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Teac MT-20D-IO - Page 156

Teac MT-20D-IO
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(k)
Key
in
"A63F".
Measure
the
signal
level
on
the
oscilloscope.
(1)
Perform
the
same
check
as
in
step
(h).
(m)
If
the
result
of
the
check
mentioned
in
step
(h)
are
out
of
the
specification,
make
the
following
adjustment.
(n)
Erase
again
the
level
test
tape
used
in
the
same
procedure
as
in
step
(a).
Load
the
erased
level
test
tape
on
MTU
again.
(0)
Key
in
"A22".
(p)
Key
in
"A63F".
Adjust
R2l
on
the
PCBA
Drive
Control
until
the
signal
level
becomes
equal
to
the
calibrated
value
of
the
level
test
tape
used.
(q)
Key
in
"F"
to
stop
the
operation.
( r ) Key
in
"A2l".
(s)
Key
in
"A63F".
Adjust
R17
on
the
PCBA
Drive
Control
until
the
signal
level
becomes
equal
to
the
calibrated
value
of
the
level
test
tape
used.
(t)
Key
in
"F"
to
stop
the
operation.
Remark
When
the
calibrated
value
of
1.0
V
to
2.0
V
is
indicated
on
the
level
test
tape,
find
the
calibrated
value
to
be
used
in
the
following
method:
For
example,
assuming
that
1.71
V
is
indicated
on
the
level
test
tape,
the
calibrated
value
250
x
1.
71/1.
5
285
mV
Namely,
the
calibrated
value
to
be
used
is
285
mV.
-
4063
-

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