Sony DSR-250, Service Manual

Page: 198 / 322

5-40
1 Attach the coaster S/T assembly to the chassis with a new
coaster stopper while being careful not to touch the tape guide.
Do the work while holding the drum side of each coaster.
2
Attach the GL arm T assembly. Fix the stop washers in the
correct position, using new stop washers.
3
Attach the GL arm S assembly while checking the phase of
each part. Fix the stop washers at the correct position, using
new stop washers.
Check each phase adjustment while referring to the above
figure.
Hole
A of the GL gear T and hole B of the GL gear S must
face each other. Hole D of the loading arm assy must be aligned
with the hole of the chassis, and the endmost gear tooth of the
loading arm assy must face toward hole
C
of the GL gear S.
Assembly
With consideration for future assembly, check from the rear of the
chassis that the phase of the loading arm assy is aligned.
Move the TG2/7 arms to the loading position with the regulated power
supply or by hand while referring to page 5-35. Each coaster assembly
must be in the unloading position.
For the disassembling and assembling procedures of the GL gear,
GL helical torsion spring, etc., refer to page 5-50.
2-3-6. GL ARM S ASSEMBLY, GL ARM T ASSEMBLY, COASTER S ASSEMBLY AND COASTER T ASSEMBLY
Disassembly: Remove the parts in order of
1
,
2
,
3
,
4
,
5
,
6
,
7
,
8
,
9
,
0
1
4
3
7
8
0
9
6
2
5
Stop washer
Stop washer
Coater stop
washer
Coater stop
washer
GL arm S
assembly
Coaster stopper
Coaster S assembly
Coaster T
assembly
GL arm T
assembly
Do not touch the tape
guide (
part).
Coaster stopper
Unloading position
TG7 arm
TG2 arm
Loading arm assy
The phase must be aligned
with the hole of the chassis.
Coaster T assembly
Coaster stoppers
Coaster S assembly
Coaster stop washer
(The stop hole is larger.)
Stop washer
(The stop hole is smaller.)
GL arm T assembly
Stop washer
(The stop hole is smaller.)
Coaster stop washer
(The stop hole is larger.)
Hole
A
Hole
B
Hole
C
Hole
D
Loading arm assy