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8-9-3.
Audio
Head
Azimuth
Adjustment
Tool:
Alignment
tape,
RR5-1SD
VTVM
or oscilloscope
Preparation:
(1) Connect
the VTVM
or oscilloscope to the
AUDIO
OUT
CH-1
or
CH-2
connector
of
the
connector
panel.
(2)
Playback
the
audio
10
kHz_
signal
portion
of the
alignment
tape.
Adjustment
procedure:
(1)
Loosen
the
locking
screw
and
adjust
the
audio
output
level
to
maximium
by
turning
the
adjustment
screw.
(2)
Tighten
the
locking
screw
and
performn
the
check
procedure.
8-9-4.
Audio
Head
Phase
Adjustment
Tool:
Alignment
tape,
RR5-1SD
Oscilloscope
Preparation:
(1)
Connect
the
terminals
of
the _
oscilloscope
to
the
AUDIO
OUT
CH-1
and
CH-2
connectors
of
the
connector
panel.
horizontal
and_-
vertical
(2)
Playback
the
audio
10 kHz
signal
portion
of the alignment
tape.
(3)
Adjust
the
scope
for
a
lissajous
wave-
form
with
horizontal
and _—
vertical
amplitudes
of
6 cm.
Check
procedure:
(1)
Playback
the
audio
10
kHz
signal
portion
of
the
alignment
tape,
and
check
that
the
vertical
amplitude
at
the
center
in
the
horizontal
direction
meets'
the
required
specification.
(2)
Playback
the
audio
1
kHz
signal
portion
of the alignment
tape, and check
that the
lissajous
waveform
meets'
the
required
specification.
Adjustment
procedure:
(1)
Loosen
the
locking
screw
1/4
to
1/2
turn
and
adjust
the
phase
by _
turning
the
adjustment
screw.
(2) Tighten
the locking
screw
and check
the
phase
again.
adjustment screw
a
locking screw
Audio/CTL Head
adjustment screw
locking screw
aN
GRD
Audio/CTL
Head
=
§ cm ————
L L
)
Spec.:
,
» within 0.52cm at 1kHz
'e within 1.5cm at 10kHz
\
phase difference 0°
Phase difference 90°
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