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4-2-2. COARSE ADJUSTMENT OF THE
TAPE
GUIDE POST HEIGHTS
(P2 and P3)
<<NOTE>>
The
Tape Guide Posts have been precisely adjusted at the
factory. Therefore, normally do
not
change the height
of
the
P2
and
P3
Posts.
The
following adjustment is required only when replacing
the
posts.
To
prevent the alignment tape from being damaged, use a
normal cassette tape for this procedure.
<<TOOL>>
Post Adjustment
Plate
;
VFK0191
Reel
Table Height Gauge ;
VFK0190
Post Adjustment Screwdriver ;
VFK0329
Check Light ;
VFK0343
L Type Screwdriver ;
VFK0326
1.
Remove the cassette compartment.
(Refer
to Disas-
sembly Procedures)
2.
Place the Post Adjustment
Plate
over the
reel
tables.
Confirm that the Post Adjustment
Plate
is
firmly seated
as
shown
In
Figure
M3.
P2 P3
VFK0191
Figure
M3
3.
Lower 2 tape guide posts
(P2
and
P3)
by
turning the
Post Adjustment screwdriver so that the condition of
post becomes
as
shown
in
Figure
M4.
That is the lower
edge of Tape guide should
be
lower than surface of
Adjustment
Plate.
Scraper
VFK0191
~-~-......&.-~1
Figure
M4
VFK0329
4-4
<<NOTE>>
Before turning
P2
and
P3
posts, slightly loosen the Lock Screw
using
the
L Type Screwdriver.
4.
Place
the scraper of
Reel
Table Height Gauge
as
shown
in
Figure
MS.
Set
the gauge to
zero,
then
raise
the post slowly until
the lower tape guide just touches the bottom of the
scraper.
Use
the gauge to determine the exact point
at
which the lower tape guide touches the scraper.
Post
[No
Good]
[Good]
Figure
M5
5.
After the adjustment, install the cassette compartment
referring to Reinstallation of cassette compartment.
6.
Play
back the beginning portion of NV-E180 cassette
tape,
and
confirm that tape travel
as
shown
in
Figure
M6.
Post
P1
Post P2,P3
Post
P4
Figure
M6
7.
Make
sure that the edges of the tape
are
not curling or
waving
at
the bottom or top
end
of the posts
P2,
P3
by
using the Check Light.
8.
If
there
are
waving or frilling
at
the lower or upper edge
of the
P2
and
P3
posts, readjust the heights of
P2
and
P3
Posts correctly
as
shown
in
Figure
M7.
Post
P2,
P3
0
n
()
No
Good
()
Figure
M7
Turning
Direction
for
correction
9.
And
confirm that the tape runs along the Cylinder
Lead
Correctly.
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