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Sony TCM-1000A - P.E.A (Pre-end alarm) Clock Frequency Adjustment

Sony TCM-1000A
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TCM-1000A
P.E.A
(Pre-end
alarm)
Clock
Frequency
Adjustment
Setting:
Supply
of
power
voltage:
2
V
Procedure:
1.
Connect
a
frequency
counter
as
shown
in
the
figure.
[MAIN
BOARD]
frequency
counter
.
Put
into
the
record
mode
and
adjust
RV201
so
that
the
reading
on
the
frequency
counter
at
about
the
end
of
the
tape
is
960
—
1,000
Hz.
Standerd
tape:
60
min.
tape
(CS-121
or
equiva-
lent.)
.
If
the
adjustment
control
does
not
have
enough
range,
change
the
connections
of
the
patterns
(A)
:
and
re-do
the
adjustment.
.
Confirm
if
the
tape
automatically
reverses
the
direction
at
within
2
+1
min.
from
the
end
of
the
tape.

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