Sony BVW-55 Maintenance Manual page 361

Adjustment procedure
7. Tape guide height adjustment
. In case that the tape tends to run on upper-end
side with the unit switched from PLAY to REW;
(1) Adjust T6 Guide (T tension regulator) by
turning the upper flange 90 degrees
clockwise and pressing it.
(2) Check the tape running conditions (by
performing the steps from 1 to 6.)
(3) If the tape running conditions do not meet
the specs 1 to 4, re-perform the tape guide
height adjustment. (Do not exceed 180
degrees (twice 90 degrees) when turning
the upper flange.)
. In case that the tape tends to run on lower-end
side with the unit switched from PLAY to REW;
(1) Adjust T6 Guide (T tension regulator) by
turning the upper flange 90 degrees
counterclockwise and pulling it.
(2) Check the tape running conditions (by
performing the steps from 1 to 6.)
(3) If the tape running conditions do not meet
the specs 1 to 4, re-perform the tape guide
height adjustment. (Do not exceed 180
degrees (twice 90 degrees) when turning
the upper flange.)
8. Recheck of tape running condition
Perform steps 1 through 6 again, and check the
tape running conditions meet each specifications.
If not, perform step 7 again.
In Case the Adjustment is Performed
9. Video tracking check and adjustment
(Refer to Section 5-5.)
10. CTL head position check and
adjustment
(Refer to Section 5-7.)
11. AT head height check and adjustment
(Refer to Section 5-9.)
12. AT head azimuth check and
adjustment
(Refer to Section 5-10.)
BVW-55 P2
Upward
13. CTL head position check and
adjustment
(Refer to Section 5-7.)
14. AT head position check and
adjustment
(Refer to Section 5-8.)
n
After check and adjustment are completed, be
sure to set the switch S100-1 on the SV-206
board to OFF.
5-4. Tape Running Check and Adjustment
Lock knob
Driver knob
Downward
5-19