Sony SVT-RA168, Service Manual

Page: 35 / 100

2-19
SVT-RA40/RA168
3-7-2. Capstan Brake Assembly
1. Remove the spring
1
.
2. Remove the clamp
2
, then remove the capstan brake
assembly
3
.
Fig. 3-7-3
3-8. Loading Motor Assembly and Worm
Gear Assembly
1. Refer to Section 3-2 and remove the mechanism unit.
2. Remove the soldering on the lead wires
2
of the
loading motor assembly
1
from the MC-1 PWB as-
sembly. When you do this, be careful not to let the
soldering iron touch any other parts.
3. Press the clamp
3
, and remove the loading motor
assembly
1
and the damper
4
. Be careful not to
exert too much force on the clamp
3
.
4. Remove the worm gear assembly
5
. To maintain
performance, do not dis-assemble the worm gear
assembly
5
.
Assembly Notes:
1. Apply grease (VHJ-0010) to the teeth of the worm
gear assembly
5
. Then apply grease (VHJ-0114) to in
the hole of the worm gear assembly
5
.
2. Check that the clamps
3
and
6
are securing the
loading motor assembly.
3. Check the polarity of the lead wires
2
(the orange
wire is the positive terminal, and the gray wire is the
negative terminal). After soldering the lead wires
2
,
adjust them so that they do not touch the friction gear
assembly.
Fig. 3-8-1
1
Spring
2
Clamp
3
Capstan brake
assembly
2
Lead wires
4
Damper
Gray:
negative
Orange:
positive
Clamps
1
Loading motor assembly
5
Worm gear assembly
Apply
grease
(VHJ-0100)
Apply
grease
(VHJ-0114)
3
Clamp