Table of Contents
Advertisement
12-2. Tape Pass Adjustment
(A)
Tape Guide (left) Adjustment
Adjusting Parts:
tape guide (left)
See Fig. 12-1
(1) Thread a tape.
(2) Align
the upper
edge of the tape just on
the upper
edge of the erase head core by
turning
the tape guide located
on the left
side of the erase head.
(3) Turn the tape guide located on the left side
of the
erase
head
clockwise
by approxi--
mately
35°
from
the position
obtained
in
the preceding procedures, so that the upper
edge of the tape is approximately 0.05 mm
lower than that of the erase head core.
guide,
tape
S S 35°
(left)
[EN
\.
Procedures:
(1) Turn
the azimuth adjusting screws and the
angle
adjusting
screws
so
that
the record
head and the playback
head are positioned
nearly as shown
in Fig. 12-5.
(2) Turn
the p.b. head height adjusting screw
so that the upper edge of the p.b. head is
0.025 mm
lower than that of the tape and
memorize
the angle of turns.
(3) Turn the p.b. head zenith adjusting screw by
the same angle of turns to the same direction
of the p.b. head height adjusting screw.
guide, tape {right}
a=.
eee | ee
tT
Ned
/
0.05mm
0.025mm
Fig. 12-5
Tape guide (left) adjustment
(B)
Tentative Record and P.B. Heads Adjustments
Adjusting Parts:
(See Fig. 12-1.)
e P.B. Head
azimuth adjusting screw
angle adjusting screws
height adjusting screw
zenith adjusting screw
e Record Head
azimuth adjusting screw
angle adjusting screws
height adjusting screw
zenith adjusting screw
(The p.b. head and the record head adjustments
should
be made
in numerical
order.)
®©QGO8
OHO
= 98 a4
(4) Turn the record head height adjusting screw
so that the upper edge of the record head
is 0.025mm
lower
than
that of the tape
and memorize
the angle of turns.
(5) Turn the record head zenith adjusting screw
by the same
angle
of turns
to the same
direction of the record head height adjusting
screw.
(6) Set the machine
at 19cm/s
(7%ips)
tape
speed.
(7) Make the tape loose a little by pushing the
tension regulator arm
pin in the direction
shown
with
arrow
in Fig.12-6
and
then
adjust
the p.b. head and
the record head
zenith
adjusting screws to obtain
the reflec-
tion of light as shown in Fig, 12-6.
Advertisement
Table of Contents
