Mic Base Guide, Mic Base Assembly And Mic Base Spring; Drum Cap, Drum Assembly And Tape Support - Sony DSR-50P Service Manual

3-7.

MIC BASE GUIDE, MIC BASE ASSEMBLY AND MIC BASE SPRING

Disassembly/Assembly
For the disassembling and assembling procedures of the compo-
nents of the MIC base assembly, refer to page 5-21.
MIC base guide
Claw
FP-104 flexible
board
(Remove the
six solders.)
Hole
A
Positioning pins
When selecting a cassette position, be careful not to touch the
slider drive shaft because it can be easily bent or broken.
Do not touch the slider drive shaft.
Select the desired cassette position by pressing the claw position.
3-8.

DRUM CAP, DRUM ASSEMBLY AND TAPE SUPPORT

Disassembly: Remove them in order of 1,2,3
For the disassembly and assembly procedures of the components
of the drum assembly, refer to page 5-22.
Flexible board (10P)
Drum
assembly
3
Drum cap
Drum reference pins
3
1
Drum fixing screw assembly
(Fasten the screws in order
1
Stop washer
(Do not reuse.)
Claw
MIC base
assembly
B
MIC base spring
Reel selector slider
Reel select slider
Flexible board (7P)
Positioning pins
Tape support
1
4
Be careful not to remove
this together with the drum
cap.
2
2 Tightening torque of
drum assembly
0.02941 ± 0.0049 N • m
, , .)
2 3
(0.3 ± 0.05 kg • cm)
Remove the six solders on the FP-104 flexible board from
the rear of the chassis. Pass the flexible board through
hole A and pull it out of the front side of the chassis while
being careful not to damage it. To attach the flexible board,
perform the steps of disassembly in reverse order.
Six solders
Temperature of tip
: 350 ± 20 °C
of soldering iron
Hold time : one second or shorter
Move the reel selector slider in the direction of arrow B
and attach the MIC base assembly at the position of "S
cassette". For the assembly of the MIC base spring, refer
to the figure.
Note: Do not hold the shaft
when selecting the reels.
Insert the side of the
shorter spring into the
hole of the holder and
hook the side of the
longer spring.
When attaching the MIC base
guide, lock the positioning pins, claw
C, and claw D in this order. Route
the flexible board into the clearance
of the MIC base guide.
Clearance
Assembly: Attach the parts while referring to the
disassembly procedure and the figure below.
(After assembling, adjust the tape path while referring to page 5-
23 and thereafter.)
Assembly and disassembly of the drum assembly
When pulling the
the claw is removed from the center shaft, then the right
pin and the drum cap are removed as shown in the figure
on the right. To attach the drum assembly, perform the
disassembly steps in reverse order.
Pins
Assembly and disassembly of the drum assembly
Be careful that the 7P flexible board
does not interfere with the
Assembly and disassembly of the tape support
The claw is hooked
on the sub-chassis.
5-12
MD-76 board
Hole
A
MIC base assembly
FP-104
flexible board
MIC base guide
Claw Pins
D Claw
part in the direction of the arrow,
Pin
Center shaft
part.
Insertion hole of
flexible board (7P)
Insertion hole of
flexible board (10P)
The claws are
hooked under
the sub-chassis.
Positioning pin
C