Sony DVW-790WS/790WSP User Manual

4-125

DVW-790WS/709WS/707

DVW-790WSP/709WSP/707P P2V1

4-3. Mechanical Adjustments

When replacing the swing gear assembly, capstan motor or timing belt, be sure to carry out belt tension
adjustment.

1.

Check that the unit is in the unthreading end mode.

2.

Remove the front lid and the outside panel. (Refer to section 1-6 of Maintenance Manual Part 1.)

. Torque screwdriver bit (for M1.4)

: J-6325-110-A

. Torque screwdriver (for 3 kg)

: J-6325-400-A

(1) Check that the spring and its hook shown in

the  figure of the swing gear assembly are not

deformed.
n
The belt tension automatically is adjusted by

this tension spring.

Before this adjustment, check that the spring

and its hook are not deformed.

If the spring or its hook is deformed, replace it

before this adjustment.

(2) Loosen the screw shown in the figure 1 or 2

turns.

(3) After pressing the swing gear arm in the direc-

tion of the arrow by finger, release it.

The swing gear arm will automatically return

to the correct position by the power of the

spring.

(4) Tighten the screw loosened in the step (2).

n
When tightening the screw, never hold the

swing gear assembly block by finger.

Swing gear arm

Screw

Tension spring