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2.
D)
2)
3)
Remounting
(See Fig. 7-7-35.)
Confirm
that
surfaces
where
the flywheel
and
the upper drum (UPPER
CYLINDER) are engaged
or make
contact
are free from
scratches
and
Girt.
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
@ is set with in the rotary transformer terminal
round
hole
side @
position
of
lower
drum
(LOWER
CYLINDER),
so
that
the two
screw
holes @ of the upper drum are aligned with the
two
screw
holes @ of the flywheel.
(Refer to
Mima rotoefaly4 tayo (a): ts) oa ©) n tM a :T-Yo MES 0(29)
In case
the
RE (ROTARY
ERASE)
HEAD
is
attached to the upper drum, pass the lead wires
through the lead wire hole.
(See Fig. 7-7-33.)
"Reassembie"
@ Code
Name
(Example :2N2N,
VAN] N RAN SN
e009
SP CH-1
Head
Rotary Transformer
Terminal
@Round
Hole'
4)
9]
6)
While keeping
the upper drum © parallel to the
lower
drum
(LOWER
CYLINDER)
©, insert
it
completely
into the flywheel.
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.
Note: When
the upper drum
has been
replaced,
Fig. 7-7-35.
— 143 —
perform a tape path adjustment as instructed
in 7-4, and the SW PHASE adjustment of the
servo
circuit.
@Screw
@Screw Holes
@Screw
Hole
Lower
Drum
(Lower Cylinder)
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