Sony DSR-250, Service Manual

Page: 208 / 322

5-50
2-3-20. COMPONENTS OF GL ARM S/T ASSEMBLY
(GL ARM ASSEMBLY, GL HELICAL TORSION SPRING, GL GEAR)
2-3-21. COMPONENTS OF MIC BASE ASSEMBLY
(FP-104 FLEXIBLE BOARD, MIC BASE)
Disassembly
Remove the push switch from claw A of the MIC base.
Remove the screw and connector (4P). Then, remove the
flexible board while being careful not to touch hook
B .
Assembly
1 Attach each GL helical torsion spring to the GL gear. To
distinguish the S side from the T side when the opening of the
spring tip is facing toward the front, note that the coil tip of the
S side is located on the left and that of the T side is located on
the right.
2 Hook the tip of the spring on the bent portion of the GL arm
assembly and push the bent portion of the GL arm into the
large cut-out of the GL gear while rotating the GL gear in the
direction of the arrow.
Assembly Disassembly and distinguishing the S side from the T side
One phase adjustment hole
GL gear T
GL helical torsion spring T
Indented
GL arm assembly T
Two phase adjustment holes
GL gear S
GL helical torsion spring S
GL arm assembly S
Tip of coil
[T side] [S side]
Fit the tip of the spring into the small cut-out of the GL gear.
Bent portions
Push here.
When the bent portion of the GL arm comes
inside this range, push the bent portion into the gear.
Screw
Connector (4P)
Push switch (one key)
Hole
C
Pin
D
FP-104 flexible board
(Four parts are soldered.)
Claw
A
MIC base
Hook
B
Tightening torque of connector (4P)
0.0392
±
0.0098N • m (0.4
±
0.1 kg • cm)
Hook the flexible
board on hook
B
Attach the push switch
(one key) to claw
A .
Insert the pin of the
MIC base into hole
C .
Insert pin D into the hole
of the MIC base.