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1)
2)
Remounting
(See
Fig. 6-1 1-6.)
4)
Confirm
that
surfaces
where
the
flywheel
and
the upper drum (UPPER CYLINDER) are engaged
or make contact
portion
are free from scratches
5)
and dirt.
The code name @ of the drum
is printed
on
the video
head side of the upper drum @ SP
CH-1 (channel
A, plus azimuth).
The code name
6)
@ is set with
in the rotary transformer
terminal
round
hole
side @ position
of
lower
drum
(LOWER
CYLINDER),
so that
the
two
screw
While keeping the upper drum @ parallel to the
lower
drum
(LOWER
CYLINDER)
@, insert
it
completely
into
the flywheel.
Temporarily
tighten
the two screws @
alternately
a little at a time, then tighten
them to a torque
of 6kg+m
using a torque
driver (VHJ-0014)
and
a 3mm
bit (VHJ-0045).
In case the RE head is attached
to the upper
drum @, solder the lead wires to the P.C. board.
Solder the red lead wire to the R terminal,
and
the yellow
lead wire to the Y terminal.
holes @ of the upper" drum are aligned with the
Note : When
the
upper drum
has been replaced,
two
screw
holes @ of the flywheel.
(Refer to
perform
a
tape
path
adjustment
as
3. Recognizing
the SP CH-1 Head side).
instructed
in 6-4. and CH-1/CH-2
switching
3)
In
case-
the - RE (ROTARY
ERASE)
HEAD
is
position
adjustment
of the servo circuit.
attached
to the upper drum, pass the lead wires
through
the
lead wire
hole.
(See Fig.5-l 1-4.)
t
...
:, ,~.,
... , ..
:.3
--- :-.
,
--, :.;....
L
"Reassemble"
- CO Screw Holes
0 Code Name
(Example : 2N2N,
2N3N, 2N4N, 4H4
@Upper
(Upper
Drum
Cylinder)
SP CH-1 Head
I
#
I
Flywheel
Rotary Tran
Terminal
ole
Drum
Cylinder)
@Round
Hol
. . . ..
,)
"i.
':-.
.-. >7
Fig.
5-11-6.
–65–
..-
,.
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