SLV-AV100B, SLV-AV100NP, SLV-AV100UX, SLV-AV100VC - Sony VCR Service Manual (repair manual). Page 6

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4) Solder 16 points on the rotary upper drum board. (See Fig. 2.)
5) Fix the shaft ground assembly 2 using the screw 1 (P3

x

8) so that the

protrusion of the shaft ground assembly end contacts the center of the
drum shaft, (See Fig. 2.)

When attaching the shaft ground assembly, be careful not to apply
force to the spring section of it.

6) Tighten the screw 1 (P3

x

8).

IV

In order to obtain the best perfotmance from this unit and make full use of its
capabilities, and to extend the life of the unit and tapes, it is recommended
that the following periodic checks and maintenance be performed.
•

The following must be done after every repair regardless of how many
hours the user has operated the machine.

1) Press a chamois cloth (Jig Ref. No. J-9) which has been dipped in cleaning

fludi (Jig Ref. No. J-8) lightly against the rotating drum assembly, then do
the cleaning by slowly rotating the rotating head disk by hand. (Never try
to clean by using the motor to turn it.)

2) Never try to clean by moving the chamois cloth at a vertical angle to the

head tip. There is a very great danger of damaging the head tip if this is
done.

1) Clean the surfaces which the tape contacts during its movement (tape guide,

drum assembly surface, capstan, pinch roller, etc.) with a chamois cloth
that has been dipped in cleaning fluid.

1) Clean the driving parts with a cloth that been dipped in cleaning fluid.

No. 2 guide
(TG2)

FE head

No. 1 guide
(TG1)

No. 0 guide
(TG0)

No. 3 guide
(TG3)

No. 4 guide
(TG4)

No. 5 guide
(TG5)

No. 6 guide
(TG6)

ACE head

No. 7 guide
(TG7)

No. 8 guide
(TG8)

capstan shaft

pinch roller