Teac MT-20D-IO - Page 198

4-4-8 Replacement of head base ASs'y
(1)
Articles to be used
(a) Phillips
screwdriver No.
0
(b) Phillips
screwdriver No. 1
(c) Other articles required in "Check
and Adjustment" item
Permalloy Head
(2) Replacement procedure
(a) Detach the protector guide in accordance with Item 4-2-3.(1).
(b) Detach the PCBA Interface Control in accordance with Item 4-4-10.
(c) Extract the connector J8.
(d) Extract the contacts (terminal Nos. 1, 2) of the solenoid Ass'y
from the connector housing.
(e) Remove the cables of the solenoid Ass' y from the PCBA holder to
make them free (Fig. 436).
(f) Remove the cables of the LED indicator from the cord clamper.
(g) Extract the connector J6.
(h) Remove the mounting screws from the head Ass'y, and detach the
head Ass'y, head collar and insulation sheet. Be careful not to
damage the front face of the head Ass'y detached. (Fig. 434)
(i) Remove the two mounting screws from each tape guide, and detach
the two tape guides and shims (tape guide) (Fig. 450).
(j) Remove the three mounting screws from the head base Ass' y, and
detach the head shift Ass'y from the main unit by lifting it
(Fig. 451).
(k) Remove the two mounting screws from the solenoid Ass'y, and detach
the solenoid Ass'y and cord clamper (Fig. 452).
(1) Reattach the solenoid Ass'y and cord clamper, which were detached
in step (k), to the ne, .. head base Ass' y .
At
this time, be sure to set the shift spring (solenoid Ass'y) to
the curved side of the shift collar (head base Ass'y) (Fig. 452).
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