Sony BVW-55 Maintenance Manual page 378

5-9. AT Head Height Check and Adjustment
Adjustment procedure
8. In case both levels increase when the
tape is pressed down (Fig. 1)
Turn the height adjustment nut counterclockwise
so that both output waveforms in CH-1 and CH-2
are maximum.
9. In case both levels increase when the
tape is pushed up (Fig. 2)
Turn the height adjustment nut clockwise and
adjust so that both output waveforms in CH-1 and
CH-2 are maximum.
In Case the Adjustment is Performed
10. Adjust the AT head azimuth
(Refer to Section 5-10.)
11. Adjust the AT head head-to-tape
contact
(Refer to Section 5-11.)
12. Adjust the AT head position
(Refer to Section 5-8.)
13. Recheck the AT head height
(Refer to steps 6 and 7 in this section.)
14. Re-check the AT head
Perform the steps 10 and 12 again.
15. Locking compound applying
(Refer to Section 5-1.)
n
After adjustment are completed, be sure to set
S100-1 switch on the SV-206 board to OFF
position.
5-36
<Fig.1>
Tape
CH-1
CH-2
<Fig.2>
Tape
CH-1
CH-2
Height adjustment nut
AT head
Minimize
Height adjustment nut
AT head
Minimize
BVW-55 P2