Sony Digital Betacam DVW-707 Maintenance Manual page 206

4-3. Mechanical adjustments
Check
1. REC Mode Setting
Insert a FWD back tension measuring cassette
tape, and put into the recording mode.
2. FWD Back Tension Check
Check that the value of the FWD back tension
measuring cassette tape at the S side satisfies the
specification. If the specification is not satisfied,
perform step 3 and higher after checking that the
value is larger or smaller than the specification.
Adjustment
3. EJECT Mode Setting
Eject the FWD back tension measuring cassette
tape.
4. Back Tension Adjustment
Change the position of the spring on the tension
regulator arm block.
Reference of adjustment
. If the value is larger than the specification, move
the position of the spring to the direction b.
. If the value is smaller than the specification,
move the position of the spring to the direction a.
5. FWD Back Tension Check After
Adjustment
Perform out the steps 1 and 2 and check that the
value satisfies the specification.
n
If the value is not satisfies the specification after
performing step 4, move the position of the spring
at the drawer arm side to the direction c. Perform
step 4 again and re-adjust.
4-122
Cassette compartment
a b
Spring
c
FWD back tension measuring
cassette tape
+0.1
x10
Spec. : 52 _2 N.m
_0.05
+10
(52 gf.cm)
_5
Drawer arm
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1