Panasonic AG-7350 Series Service Manual page 42

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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.