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AKAI M-9 · M-9DX
16.
HEAD DEMAGNETIZATION
Normally, the steel pole pieces which form a part of the recording and playback
heads become slightly magnetized.
The effect of the slight head magnetization is to
partially erase the tape. Mostly high frequencies suffer. Generally, slightly magnet-
ized heads can be detected by noticing Joss of normal high frequency response which
cannot be corrected through head alignment.
Severe magnetization which may re-
suit if magnetized tools are used in the vicinity of the heads, will result in noise or
considerable distortion in addition to the Joss of high frequency response. Although
the M-9 (M-9DX) already has a buit-in Head Demagnetizing circuit, it is recommended
that head demagnetization be performed periodically.
After removing the head cover, head demagnetization can be accomplished by touch-
ing the head Iightly with the demagnetizer and making severa! small circular motions
over ali head surface areas as weil as the head housing.
1
7.
TAPE
DUPLICATION
Connecting AKAI X-355 Tape Recorder with M-9 (M-9DX).
Connecting M-9 (M-9DX) with another M-9 (M-9DX).
PRE-RECORDED TAPE
BLANK TAPE
OUTPUT
R
R
L
L
~_j
~
'-..._...-
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