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TAPE
MECHANISM
ADJUSTMENT
a. HEAD REPLACMENT AND AZIMUTH
ADJUSTMENT
(a)
(b)
Note:
(1)
After replacement,
demagnetize
the heads by using a degaukser.
(2) Be sure to clean the heads before attempting
to make any adjustments,
~3) Be sum both channels
(1 and 2) are the same level [Using a dual-channel
oscilloscope.)
(4) All wiring should be returned
to the original position after work is completed.
Head replacement
and Lead wire connections
TAPE"#
PLAY HEAD
I
P
n
,*
TAPE%"RIP
HEAD
I I
I
I
II
~A~E
,,
A
,,,
,,
B "Head
azimuth
adjustment
(1) Load a test tape (VTT-703etc.,
: 10kHz)
in Tape
Deck " A ".
(2) Press the PLAY (>) button (normal playback).
(3) Use a flat-tip
(-)
screwdriver
to turn
the screw for
normal azimuth adjustment so that the left and right
outputs are maximized at the same phase during nor-
mal playback).
(4)
Press the tape PLAY [<) button [reverse play-back).
[5) Play the tape in the reverse mode.
(6) Use a flat-tip( - ) screwdriver
to turn the screw for
reverse azimuth adjustment
so that the left and right
outputs
are maximized
at the same phase during
reverse playback,
[7) Press the STOP button.
[8) Repeat step (2) -
[7).
[9) Repeat procedure
for tape Deck"
El",
After
completion
of the adjustment,
use threadlock
(TB-1 401 B) to
secure
the
azimuth-adjustment
screws,
,,
:,$ . ...%
,,
ii
–6–
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