Adjustment; Fwd Position Adjustment; Reel Torque Check - Sony DCR-HC39E Service Manual

4. Adjustment

4-1. FWD Position Adjustment

When the TG2 arm block assy or the band adjuster or the S reel
table assy is replaced or removed, the following adjustment becomes
necessary.
• TG2 FWD Position Adjustment (Refer to section 4-4.)
• FWD Back Tension Adjustment (Refer to section 4-4.)
• Reel Table (RVS) Check (Refer to section 4-2.)
1) Set the R/P mode and check the TG2 guide position as follows.
• Confirm that the distance between the TG2 guide and the L
motor is 1.0 mm. If not, perform adjustment as follows.
2) Loosen the fixing screw. Use the adjustment screwdriver (Ref
No. J-8) and adjust the band adjuster for the distance of 1.0
mm between the TG2 guide and the L motor. Upon completion
of adjustment, tighten the fixing screw securely as follows.
Tightening torque: 0.059 ± 0.01 N•m (0.6 ± 0.1 kgf•cm)
Note: Upon completion of adjustment, confirm that TG2 can move
with some margin in the direction of the arrow A.
DV MECHANICAL ADJUSTMENT MANUAL VII
L motor
Band adjuster
Fixing screw
Adjustment
screwdriver
Fig. 4-1
— 47 —

4-2. Reel Torque Check

1. Check Procedure
[FWD torque]
1) Set the mini DV torque cassette (Ref. No. J-6).
2) Establish the FWD mode. Confirm that the center value of the
T reel table torque value is in the range of 0.49 to 0.93 (mN•m)
(5.0 to 9.5 g•cm) within deviation of 0.39 (mN•m) (4.0 g•cm)
[RVS torque]
1) Set the mini DV torque cassette (Ref. No. J-6).
2) Establish the RVS mode. Confirm that the center value of the S
reel table torque value is in the range of 1.57 to 2.45 (mN•m)
(16.0 to 25.0 g•cm)
If the above specification is not satisfied, check the tension regulator
band for correct operation. If operation of the tension regulator
band has no problem, replace the respective reel tables.
A
Band adjuster