SONY DCRHC40
Service Manual

DV MECHANICAL ADJUSTMENT MANUAL VII

3-25. Coaster (S) Block Assy and Coaster (T) Block Assy
1.
1)

Removal procedure
Remove the coaster (T) block assy 1 from the coaster (T) block shaft. Remove the coaster (T) block assy from the right groove of the drum base. Remove the coaster (S) block assy 2 from the coaster (S) block shaft. Remove the coaster (S) block assy from the left groove of the drum base. Remove coaster (S) assy 3 by rotating it through the key hole of GL (S) assy 4.

2.
1) 2)

Attachment procedure
Install the coaster (S) assy 3 into the key hole of the GL (S) assy 4 by rotating it. Insert the coaster (S) block assy 2 into the coaster (S) block shaft. While aligning it with the left groove of the drum base, push it in the way that the V-groove comes to the top until it reaches the pressure-bearing S. Push in the coaster (T) block assy 1 along with the right groove of the drum base. Align the phase of the GL gear S, GL gear T and the GL drive arm at the three phasing locations. Then install the coaster (T) block assy 1 in the coaster (T) block assy shaft.

2)

3)

3)

Key Points in Re-assembling
� When aligning the coaster (S) assy with the left groove of the drum base, the V-groove must come to the top. � TG4 and TG5 must not have any stain and their arms must not be deformed.
2 Coaster (S) block assy 4 Keyhole of GL (S) assy

Phase Adjustment Key Points in Re-assembling
When re-assembling, adjust the gear phase at the three positions. GL gear (S) GL gear (T)

V-groove must come to the top.

3 Coaster (S) assy

1 Coaster (T) block assy

Coaster (S) shaft

Pressurebearing S V groove The second tooth from the left

GL driving arm Drum base groove GL gear (T) � mark

GL gear (S) GL gear (T) shaft GL driving arm

The second tooth from the left GL driving arm

� The second tooth from the left of the GL gear (S) and the V-groove of the GL gear (T) must be in phase. � The second tooth from the left of the GL drive arm and the v mark must be in phase.

� 36 �