JMECHA - Sony VCR Service Manual (repair manual). Page 27

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1)

Remove three screws (M1.4 

×

 2.5).

2)

Move the coaster-S block assy and coaster-T block assy out
from the drum base groove in the direction of the arrow A.

3)

Remove the drum base block assy.

4)

Remove the coaster-S block assy from the GL gear shaft-S.

5)

Remove the coaster-T block assy from the GL gear shaft-T.

1)

Insert a coaster-S block assy and coaster-T block assy into the
drum base groove.

2)

Place a drum base block assy on top of the mechanism chassis
assy.  Insert a coaster-T block assy into the GL gear shaft-T.

3)

Insert a coaster-S block assy in the oblique direction.  While
adjusting phase so that the spring of coaster-S block assy agrees
with the GL gear lever marking of the coaster-T block assy,
insert a coaster-S block assy into the GL gear shaft-S.

• There must be no phase difference.
• Do not remove coaster-S block assy and coaster-T block assy

from the drum base block assy.

4)

Determine the exact position of the drum base block assy that
has been tentatively placed, on the mechanism chassis assy.
Tighten the screws at A, B and C in this order.
Tightening torque: 0.059 ± 0.01 N•m (0.6 kg•cm)

Be careful that the position setting boss of drum base block assy
does not override on the mechanism chassis.

×

A

C

B

A