4-9
VL-E610S/VL-E610H
VL-E660S/VL-E96E
VL-E98E
4-4-3. Adjusting the Si roller height
After replacement of Si roller preset and adjust the Si roller height.
(1) Si roller height presetting
Adjust the height from the upper surface ofmechanism chassis to the upper surface of lower flange with the aid of jig.
Then lower it by 90
°
(clockwise).
Figure 3
(2) Adjusting the Si roller
1 Playback the tape to set the V/SR mode.
2 Ascertain that the tape is not folded on the lower flange (2) of Si roller (1). (Figure 4)
If tape folding is found, turn the upper flange (3) of Si roller (1) with the driver (clockwise) to eliminate the folding.
3 Playback the alignment tape (VR2DBOPS).
4 Adjust the Sup GR and Tu GR by the procedure described in section 4-2 above.
5 After V/S F,R perform playback so as to ascertain that the waveform rises horizontally within 2 seconds.
6 Unless the normal waveform is obtained (Figure 5), turn counterclockwise the upper flange (3) of Si roller (1), and
repeat the step (5) above. Repeat the steps (5) and (6) until the normal waveform is obtained. At this time ascertain
that the inlet travel does not change in the normal playback state. If any change is found, adjust the Sup GR, and
redo the step (5).
Figure 4
Figure 5
4-4-4. Adjusting the Tu guide
After replacement of Tu guide preset and adjust the height.
(1) Tu guide height presetting
Adjust the height from the upper surface of mechanism chassis to the upper surface of lower flange with the aid of jig.
Upper flange (3)
Si roller (1)
REV mode
Lower flange (2)
Tape must be free from foldeng.
Figure 6
Upper flange
Lower flange
Height adjusting jig
Master plane
(JiGMP-MX7U)
Rise waveform
REV
OK
Playback
REV
NG
Playback
Upper flange
Lower flange
Height setting jig
Master plane
(JiGMP-MX7U)
