Tension Confirmation - Panasonic DVCPRO50 Service Manual

3-8. Tension Confirmation

SPEC
PLAY : 0.06N ± 0.01N (6gf ± 1gf)
REV : 0.09N ± 0.02N (9gf ± 2gf)
PLAY, REV ×1
MODE
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.
Reverse side
of Magnetic Side
Plumb
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.
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.
NOTE :
Pay attention not to give some tape damage.
MECH-7
Figure 3-8-2
Figure 3-8-3