A.
When the taper guide is replaced
or guide roller 2 is
adjusted,
it is necessary
to adjust
the height
of V /S
erase head.
B.
If the audio-l
and audio-S channels
are not influenced
by V/S erase head when a video signal is recorded
in
the ASSEMBLE
mode,
the height
of
erase head
is
as correct.
C.
If the harness
of the
monitor
and
heads
is not
firmly
clamped
with
a harness
holder, the leads of the
erase head may be caught
on the holder
and it will prevent
the
erase head
moving. When the erasure of the video and sync signals
is incomplete,
close the slant guides and check that
the harness holder is holding
the harness of the audio/
CTL heads tightly
and the V / S erase head can move
smoothly.
1.
Record 3 kHz
on the audio-l
and -3 channels.
2.
Rewind
half of the segment
recorded
in Step 1, and
record
a video signal on the video and sync channels
in the ASSEMBLE
mode.
3.
Connect
the oscilloscope
to AUDIO-l
and AUDIO-3
LINE OUTPUTs.
4.
back the segment
recorded
in Steps 1 and 2,
check
that
the waveform
does not change at the IN
point. If the waveform
perform the following
adjustment.
5.
Take off
erase head assy by removing
6.
Change the thickness
of the spacer.
screw.
a.
If the audio-I
waveform
changes,
decrease
the
thickness
of the spacer.
b.
If the audio-S
waveform
changes,
increase
the
thickness
of the spacer.
I-
Z
w
2
z
<.9
-.J
«
2
w
I-
(J)
>-
(J)
I
I-
«
o,
w
o,
«
l-
e:>
Thickness
(mm)
Part No.
0.05
3-6 5 1-4 19-0 1
0.1
3-651-41 9-21
7.
Mount
erase head
assy
and check the
of
1 to 4 again.
10-43,
performing
SLANT GUIDES
Fig. 10-42. Confirmation
of Harness Clamp
VIS ERASE
HEAD
VIS SCREW
10-43. V /S Erase Head Height Adjustment
10-30
BVH-2000(U/C)/PS/PM
BVH-2180( U/C)/PS/PM
BVH-2500( U/C) /P
Содержание BVH-2000
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