Sony DSR-250, Service Manual

Page: 201 / 322

5-43
Disassembly/Assembly
(Do not touch the TG band block.)
When the reel table assembly is replaced or attached, perform each
adjustment from Adjustment Start -1 of the flowchart on page 5-52.
2-3-13. REEL TABLE ASSEMBLY, IDLER GEAR A ASSEMBLY AND IDLER GEAR B
Disassembly: Remove them in order of
1
,
2
,
3
,
4
(To attach them, perform the disassembly steps in reverse order.)
2-3-12. BRAKE ARM S, RATCHET BRAKE T, TENSION COIL SPRING (BRAKE), SBR SLIDER AND FP-248 FLEXIBLE
BOARD (CONDENSATION SENSOR)
Checks before work
The TG band winds around the slit of the reel table assembly. Before
removing the reel table assembly, clear off the TG band while
referring to the left figure. When attaching the TG band, be sure to
use new stop washers.
When attaching each gear, apply grease to each fixing shaft. Apply
grease of half the size of one rice grain to the top side of shaft
C
.
When attaching the idler gear A assembly, be careful not to apply
grease to the reflection panel.
Shaft
E
Shaft
A
Shaft
B
Shaft
B
Shaft
A
Shaft
D
Shaft
C
Clear off the stop washers of
the adjuster side of the TG
band in advance as shown
in the figure.
Idler gear A
assemblies
IReel table assembly
Idler gears B
Reel table assembly
Apply grease to part.
(half size of one grain of rice)
Shaft
B
Shaft
A
Shaft
C
Good Not good
Shaft
D
or
E
When attaching the TG band, the part also
must be inserted into shaft
D
or
E
.
When attaching the idler gear
A assembly, be careful not to
apply grease to the reflection panel.
1
2
1
4
3
2
Shaft
B
Hole
A
C
Shaft
A
Hole
B
FP-248 flexible board
(Condensation sensor)
SBR slider
Brake arm S
Tension coil spring
(brake)
Ratchet brake T
Tension coil
spring (brake)
Clean here
with alcohol.
Remove the SBR slider
while being careful not
to touch the adjuster.
Portion
C
of the SBR slider
and brake arm S must run
close to each other.
The idler gear
A
assembly
must be engaged with the
gear teeth.
Cannot be
removed.
Can be
removed.
Insert shaft
A
into hole
A
.
Insert shaft
B
into hole
B
.
Hook the hook of the spring on
the brake side from underneath.
When attaching the FP-248 flexible
board, scrape the contact surface
with a swab to stick the flexible
board to the chassis.
Do not touch the sensor block
(black area).
Two solders
Temperature of tip of soldering iron:
350
±
20
°
C
Hold time:
one second or shorter