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Play the tape and check that the core of the
head
extends
0.1mm
above
and
0.25mm
below the edges of the tape.
See Fig. 7-15.
The height can also be adjusted
by inserting
spacers.
screw (B)
Fig. 7-14
Audio/CTL head (1)
0.25 mm
screw (B) for
azimuth adj.
Fig. 7-15
Audio/CTL head (2)
10.
1}.
12.
13.
14.
15.
7-5.
Connect
a. VTVM
to the
EARPHONE
jack.
Play back the 7 kHz section of the alignment
tape.
Adjust
the
azimuth
adjustment
screw
in
Fig. 7-15
to obtain maximum
VTVM
reading.
Play
back
video
alignment
tape.
Check
the
monitor
picture for signal-to-noise ratio.
Adjust
TRACKING
control
to
obtain
best
picture.
If S/N is poor, proceed to Step 12.
Connect
scope
to
TP-7.
Sync
the
scope
externally from TP-19.
Play back video alignment tape.
Loosen the
screws
in the long slots shown
in Fig. 7-14.
Move
the head slightly to the right or left
until maximum
output
is obtained
on scope.
Tighten the screws.
STOP BRAKE ADJUSTMENT
The tape should not slacken when
the VTR is
Remove reel panel.
Set the function lever to fast forward.
Check for 0.9 + 0.1 mm clearance between the
reel table and brake shoe.
Bend @ or ®
portion for correct
clearance.
See Fig. 7-16.
Fig. 7-16
Brake adjustment
7-7
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