Sony DSR-250, Service Manual

Page: 205 / 322

5-47
4 Apply grease to the fixing block (shaft
J
and U-shaped groove
K
) of the coupling gear and portion
L
of the sub-cam gear
(half size of one grain of rice for each part). (Fig. 8)
5 Attach the coupling gear. After attaching, apply grease while
rotating the coupling gear by 120˚ each time. (Fig. 9, 10)
6 Attach the main cam gear while being careful of the directions
of the front and rear sides. Also, take care of the phase
adjustment to the sub-cam gear. (Fig. 8, 11, 12)
Phase pin
M of the main slider arm should be fitted in the
groove of the main cam gear (rear side). (Fig. 5)
Sub-cam gear
Main cam gear
Encoder gear
Groove K
Shaft J
L
[Front side of chassis]
▲
marks should face
each other.
a marks should face
each other.
Not
good
Not
good
Main cam gear
Sub-cam gear
U-shaped groove K
Shaft
J
Attach the coupling gear to shaft
J
and U-shaped groove K in order.
120
°
120
°
120
°
Apply grease to the three parts
(half size of one grain of rice for each part).
Main cam gear (rear side)
(
a
does not exist.)
Main cam gear (front side)
(
a
exists.)
Phase pin C should be fitted in
the groove of the main cam gear
(front side).
Sub-slider
Sub-slider arm
Reel selector slider
(After attaching the sub-slider arm,
return the reel base to
the original position (L cassette).)
(Position when L cassette is set)
Phase pin
F
should be fitted in
the long hole of the sub-slider arm.
Reel base S
Reel base T
Do not hold the shaft
when selecting the reels.
[Front side of chassis]
7
Attach the encoder gear. (Fig. 3)
Adjust the phases (marked) to those of the main cam gear. (Fig.
4/Fig. 8)
8
After moving the reel selector slider in the direction of arrow
N
to set the position of the reel base to “L cassette”, attach the
sub-slider in reverse order while referring to Fig. 3. (Fig. 13)
9
Attach the sub-slider arm. (Fig. 1/Fig. 13)
Fig. 8
Fig. 11
Fig. 9
Fig. 10
Fig. 12
Fig. 13