Akai 1730-SS User Manual

12-HEAD DEMAGNETIZING
Normally the steel pole pieces which form a
part of the Recording and Playback Heads
become
slightly
magnetized,
The
effect
of
slight head magnetization is that it partially
erases
the
tape,
especially
at
high
frequencies,
Generally,
this
condition
can
be
detected
by
the loss of high frequency response which can-
not
be
corrected
through
head
alignment,
d
by using magnetized tools in the vicinity of the
Severe magnetization (which may be caus
heads) will result in’ noise or considerable
distortion in addition to the loss of high frequen-
cy response, Although Model 1730-SS already
has
a
built-in
head
demagnetizing
circuit,
it
is
recommended that head demagnetization be
performed periodically. This can be accomp-
lished by touching the head lightly with the
demagnetizer and making several small circular
motions over all heads surface areas as well as
the head housing.
NOTE: To avoid scratching the bead surface.
we
suggest
that
you
cover
both
prongs
of
the
head demagnetizer with a sort of masking tape,
13-TAPE ERASING
Any signals previously recorded on the tape
will
be
automatically
erased
as
a
new
record-
ing is made. For erasing only, load tape and
set
recorder
to
recording
mode.
Model
1730-
is equipped with separate 2-channel and full
track erase heads, For full track erase, set
STEREO TAPE SELECTOR to “4-CH”
position
and
for
2-Channel
erase,
set
to
“2-CH™
position. No plugs should be connected to the
line
input
jacks
or
microphone
jacks.
For
quick and complete erasing, the use of a Bulk
Tape Eraser is recommended,

Akai 1730-SS Specifications

General

Brand	Akai
Model	1730-SS
Category	Tape Deck
Language	English