Panasonic AJSD955B - DVCPRO50 STUDIO DECK, Service Manual, Page: 86 / 562

MECH-7
3-8. Tension Confirmation
SPEC
PLAY : 0.06N ± 0.01N (6gf ± 1gf)
REV : 0.09N ± 0.02N (9gf ± 2gf)
MODE
PLAY, REV
×
1
TAPE
63 min M size blank tape
TOOL
VFK1145A (Tension Meter)
♦
Please calibrate Tension Meter before tension
measurement by the following procedure.
<Calibration of Tension Meter>
1. Attach the 7 grams calibration plumb to DVCPRO
tape. (It’s tape and plumb are included in
VFK1145.)
2. Set the above tape to the Tension Meter as
shown in figure 3-8-1.
3. Pull up the tape by the speed of 33mm/sec and
adjust the Tension Meter so that the meter shows
7 grams (0.07N).
♦
To calibrate Tension Meter, the tape must be
inserted into the posts of Tension Meter as shown in
figure 3-8-1.
Figure 3-8-1
1.
Play back the beginning portion of the tape.
2. Insert the tension meter between S3 post and S4
post as shown in figure 3-8-2.
3. Confirm that the tension value is within the
specification.
Figure 3-8-2
4.
Place the unit in REV x1 mode.
5. Insert the tension meter between S4 post and S5
post as shown in figure 3-8-3. (Direction is
reverse)
6. Confirm that the tension value is within the
specification. (Read the meter from rear side as
shown in figure 3-8-3.)
7. If it is out of specification, please perform the
Tension Arm Adjustment.
Figure 3-8-3
NOTE :
Pay attention not to give some tape damage.
Plumb
Reverse side
of Magnetic Side