Tg2/7 Arm Block, Tg2/7 Band Block And Tension Coil Spring (Tg2)/(Tg7) - Sony DSR-50P Service Manual

3-16.

TG2/7 ARM BLOCK, TG2/7 BAND BLOCK AND TENSION COIL SPRING (TG2)/(TG7)

Disassembly: Remove them in order of 1,2,3,4
For the disassembling and assembling procedures of the assembly
components of the TG2/TG7 arm, refer to page 5-22.
Be careful not to touch
the tape guide (
Stop washer 3
Compression
TG2 arm
coil spring (TG)
assembly
4
2
Stop washer
1
Tension coil
spring (TG2)
Shaft A
Shaft C
Fig. 1
Assembly: Attach them while referring to figure above
or below and the descriptions.
When these parts are replaced or attached, perform each adjust-
ment from Adjustment Start -3 of the flowchart on page 5-23.
F
C
H
[TG2 side]
Hook the spring from the inside
and put it under the TG band.
part) and TG band block.
Stop washer
3
Stop washer
2
Compression coil
spring (TG)
4
TG7 arm assembly
Tension coil
spring (TG7)
1
Shaft B
Shaft D
Hook each spring on
the second hook from above
G
Sub-slider
Fig. 3
[TG7 side]
Fig. 4
Hook the spring from the outside
and put it under the arm.
Notes during work
Be careful when handling the TG arm and the peripheral parts.
• Twisting and bending of the band block and tension coil spring
• Dirt and scratches of the tape guide
• Loss of the compression coil spring (TG)
Do not reuse removed stop washers.
Disassembly of the band TG2/TG7 assembly
When pulling portion E of the TG2 or TG7 band in the
direction of the arrow, a click sound is heard as the
band is removed. To attach the bands, pull out the
opposite side to portion E to lock.
Band TG2/TG7 assembly
1 Apply grease to the top side of the fixing shaft (A or B) of
the TG arm. (Fig. 1)
2 Attach the TG band assembly to the TG arm assembly. (Fig. 2)
Be sure that the felt sides of the TG band face toward the reel
tables so that they surround the respective reel tables.
3 Attach the tension coil spring to the TG arm assembly. (Fig. 3,
4)
• Hook the spring of the tension coil spring (TG2) from the
inside and put it under the TG band. (Fig. 3-F, 4)
• Hook the spring of the tension coil spring (TG7) from the
outside and put it under the TG7 band. (Fig. 3-G, 4)
D
4 Attach the TG arm block to the shaft (A or B) and attach the
tension coil spring to the second hook. When attaching the TG2
arm, the
(Fig. 3)
5 Attach the adjuster of the TG band to shafts C and D.
Good
6 Fix the TG band and TG arm with new stop washers. When
attaching the TG arm, do not forget to attach the compression
coil spring (TG). (Fig. 1)
5-16
Fig. 2
Half size of one grain of rice
part must be at the left of portion H of the slider.
Fixing shaft C or D
Not good
This part also must be
inserted into the shaft.
E
Shaft