MX-J300
1-25
Arrangement of adjusting positions
Cassette mechanism section (Mechanism A section)
Cassette mechanism section (Back side)
Head azimuth
adjusting screw
(Forward side)
Head azimuth
adjusting screw
(Reverse side)
Head azimuth
adjusting screw
(Forward side)
Head azimuth
adjusting screw
(Reverse side)
Playback
head
Playback,recording and eraser
heads or playback head
1.Playback the test tape VT703(10kHz).
2.With the playback mechanism or recording &
playback mechanism, adjust the head azimuth
screw so that the forward and reverse output
levels become maximum.After adjustment,lock
the head azimuth at least by half a turn.
3.In either case,this adjustment should be
performed in both the forward and reverse
directions with the head azimuth screw.
<Constant speed>
Adjust the volume inside of capstan motor1 so that
the frequency counter reading becomes 3,000Hz
60Hz when playing back the test tape VT712(3kHz)
with the playback mechanism or playback and
recording mechanism after ending forward winding
of the tape.
Confirmation
of head angle
Confirmation
of tape speed
Test tape
VT703(10kHz)
Measurement
output terminal
:Speaker terminal
Speaker R
(Load resistor:3ohm)
:Headphone terminal
Test tape
:VT712(3kHz)
Measurement
output terminal
:Headphone terminal
Maximum
output
Tape speed
of decks
(A and B)
:3,000Hz
60Hz
Adjust the head
azimuth screw
only when the
head has been
changed.
Volume Inside
of capstan
motor
Items
Measurement
conditions
Measurement method
Standard
values
Adjusting
positions
Tape recorder section