Sony SLV-495 - Howto Remove a Rotary Upper Drum; Howto Attach a New Rotary Upper Drum

HOW TO REPLACE A ROTARY
UPPER DRUM (SLV-675HF/676HF/
675HFPX/685HF/695HF/L60HFCS/
L60HFMX/L60HFPA/X6HFMX/
L70HFCS/L70HFMX/L70HFPA)
5-1. HOWTO REMOVE A ROTARY UPPER DRUM
1)
2)
3)
Remove screw @ (+P3x8) and remove the ground shaft
assembly @). (Refer to Fig. 4.)
Remove soldering which is marked by arrow and remove the
rotary upper drum board completely.
Remove two screws @ (PSW3x8) and remove the rotary upper
drum in the direction of @. (Refer to Fig. 5.)
If removal is difficult, remove it while rotating it slowly.
Note: If removal is difficult, check again if soldering is removed
completely.
@® Ground shaft assembly
@
Screw
(+P3
x
8)
Drum
when
viewed
from
the
top
cs
)
o—
5-2. HOWTO ATTACH A NEW ROTARY UPPER
DRUM
1) Pay attention so that finger print or like must not be put when
inserting a new upper drum into lower drum.
2) Align =» mark of the rotary upper drum board with the =>
mark of the rotary transformer board so that the screw hole on
the upper drum and that on the lower drum are aligned. (Refer
to Fig. 5.)
3) If attaching is difficult, attach a upper drum while rotating it
slowly.
Note: Pay attention not to damage the video heads.
Confirm that the upper drum is inserted completely.
4) Tighten the two screws ® (PSW3x8). (Refer to Fig. 5.)
5) Fix the earth shaft @ by tightening the screw @ (+P3x8) so
that protrusion at the tip of the earth shaft contacts the center
of the drum shaft.
Note: When attaching the ground shaft assembly @, never give
force to the plate spring @.
© PSW3 x8
Upper drum assembl
DERAA5-R ‘
(8-848-576-02)
Align the two arrow marks.
Fig. 5