Service manual
• Azimuth Adjustment and Head Cleaning
* Azimuth adjustment
of
record/playback head
1. Connect a synchroscope
to
the
collector
of
03003.
2. Load a
test
tape (TEAC, 3kHz-signal recorded) and play it back.
3. Rotate the azimuth adjusting screw so
that
the waveform on a synchroscope will be
the
maximum.
Record/playback
head
,
Head cleaning
Head
azimuth
adjusting screw
/
Clean
the
heads, capstan and pinch roller often,
to
remove
dust
and tape residue. Foreign material
on
them
impairs the sound
quality
of
both
recording and playback.
Open
the
cassette holder, remove
the
tape, push the play
button
and clean them with a
soft
cloth moistened
in
alcohol.
Erase protection
To
protect
a cassette
tape
from being accidentally erased it was designed with
two
removable tabs. ,When the tabs
are
removed, it
is
impossible
to
push the record
button.
When no cassette
is
inside
the
machine, no pushing
of
the record
button
is
allowed, either. Nevertheless, pushing
the
button
strongly may cause a trouble.
-23-
Pinch
roller
/
Head
MZ-80K