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6.6
.
1.2
Head Wrap and Azimuth
Adjustment
Procedure
The following
procedure
is used for both the
Repro
head and the
Sync
head
.
When
adjusting
the head
stack
,
be sure to
adjust
both the
Repro
head and
Sync
head
.
NOTE
:
STEP 1
Press the ALL
key
on the
ALN -
panel
,
provide the sum of all
2 channels
as
the
output
of
the CAL OUT connector
.
This
will
STEP 2
After
having completed
the check
procedure
in Section
6.6
.
1.1
,
continue with the
wrap
adjustment
.
The
wrap
adjustment scew
should be rotated to find the
peak
reading on
the ACVM
.
Remember to attain a
reading on
the ACVM the machine must be
playing
back the test
tape
(
as
in
Section 6.6
.
1.1 )
.
STEP 3
While
playing
back the 10 kHz tone
,
adjust
the azimuth
adjustment screw
( Refer
to Figure 6
-
23
)
so that the
reading on
the ACVM
is at peak amplitude
,
peak amplitude of
the ACVM is read
,
check the
phase
relationship of
the
signals
on the oscilloscope
,
channels will be in
phase
.
When the
All
o
MOUNTING
SCREWS
HCAO
HEIGHT
Figure
6
-
23
«
Headstack
Adjustment Screw
Locations
6
-
44
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