Sharp VL-PD1U

VL-PDl U
8-4. Running rough adjustment
(Since this adjustment is performed without cassette controller, put a proper weight so that the cassette does not rise ,
and make an adjustment.)
Adjustment item
1) Su, Tu guide roller height adjustment
Method and description
(l)Loosen the guide roller lock screw, then tighten loosely so that
the roller turns easily.
Turn to 180”
a
c
T roller
(2)Replay an alignment tape, and adjust the Su, Tu guide roller so
that the envelope sides of entrance and exit are flat.
(3)Perform a l/4 shift, then, as in the above case, adjust until the
envelope becomes flat.
* If running is difficult for the entrance changed, turn the T roller to
180”. (refer to Fig. 1)
2) Check of V&R envelope wave form
(l)Confirm that the envelope waveform peaks in V/SR mode are
uniform.
(2)lf they are not uniform, fine-adjust the guide roller and the Tu
guide.
1
A
Adjust so that A $ B.
B
3) Check of tape wrinkles
(l)Make sure that the S guide flange tape is free from creases
in the PB mode and V/SR mode.
elf crease is found, make an adjustment in the range of f180°.
@After adjustment apply Screw Lock.
(2)Check that the tape is not distorted between the Tu guide and
pinch in the PB mode and the V/SR mode.
Qlf crease is found, make an adjustment in the range of t180”.
QAfter adjustment apply Screw Lock.
Deformation
T roller
Pinch roller
Wrinkles
~
Tu guide
\
0
//
Deformation
‘q // ‘Deformation
4) Check the rising time of the envelope wave
form
(1)Check the rising time of the envelope when switching from V/
SR mode to PB mode. (Within 5 set)
(2)Check the rising time of the envelope when switching from
STOP mode to PB mode. (Within 5 set)
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