Teac MT-20D-IO - Page 171

4-4 Replacement of maintenance parts
4-4-1 Replacement of head Ass'y
(1)
Articles to
be used
(a)
Phillips screwdriver
No. 0
(b) Phillips screwdriver
No.
1
(c) Tweezers
(d)
Other articles required in
"Check and Adjustment"
item
Permalloy Head
(2) Replacement procedure
(a) Remove the protector guide in accordance with item 4-2-3.(1).
(b) Extract the connector J6.
(c) Remove the head screws, detach the head Ass'y and head collar
(Fig. 434).
At this time, keep the insulation sheet between the head and base
attached onto the base.
Remark
If the insulation sheet is attached to the head Ass 'y
together, strip it with tweezers.
(d) Attach the new head Ass'y in the reverse procedure to the above.
Remarks 1. Attach the head Ass'y so that it is pressed to the
cassette side against the positioning pins on the
base.
2. Since
the head collar has directivity for
installation, attach it so as to meet the slots in
the head.
3. Be sure to tighten screws with the tightening torque
of 1.5 kg-cm. If they are tightened with greater
torque, there is a danger that the head collar may
be damaged.
(e) Connect the connector J6.
(f) Detach the PCBA Interface Control in accordance with Item 4-4-10.
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