DV MECHANICAL ADJUSTMENT MANUAL VII
4-2. TG3/TG5 Guide Coarse Adjustment4-4. TG3/TG5 Guide Fine Adjustment
1) Play back the tracking alignment tape (XH 2-1) (Ref. No. J-5).1) Play back the tracking alignment tape (XH 2-1) (Ref. No. J-5).
2) Adjust the TG3 and TG5 guides until the RF enve2lope w) Adjust the aveformTG3 so that the RF envelope has the larger amplitude
becomes flat. (Refer to Fig. 4-8.)at the entrance side first, than adjust TG3 guide for flat
amplitude. (Refer to Fig. 4-8.)
Pinch roller3) Adjust the TG5 so that the RF envelope has the larger amplitude
Drumat the exit side first, than adjust TG5 guide for flat amplitude.TG7 guide
TG3 guide,(Refer to Fig. 4-9.)
TG5 guide
Adjustment nut
Entrance sideExit side
TG6 guide
TG5 guide
TG4 guide
TG1 guide
TG3 guide
TG2 guide
Fig. 4-6
4-3. FWD Back Tension Adjustment
1) Set the mini DV torque cassette (Ref. No. J-6) and establish
the FWD mode.
2) Confirm that the S side torque cassette reading value is in the
range of 0.2 to 0.3 mNYm (2.0 to 3.0 gYcm) including deviation.
If the measurement value does not satisfy the specifications,
perform the following adjustment.
Fig. 4-8
Y If the measurement value is higher than the specification:
(Decreases the spring tension)
Move the tension coil spring hook to another spring stay in
the direction of B.Entrance sideExit side
Y If the measurement value is lower than the specification:
(Increases the spring tension)
Move the tension coil spring hook to another spring stay in
the direction of A.
Tension coil spring (tension regulator)
A
TG2 arm
assy
B
LS chassis assy
Fig. 4-9
Fig. 4-7
N 50 N |
ACEC
SONY
