Teac MT-20D-IO - Page 180

4-4-3 Replacement of interrupter C Ass'y
(1) Articles to be used
(a) Phillips screwdriver No. 0
(b) Phillips screwdriver No. 1
(c) Tweezers
(d) Connector jig
(e) Other articles required in the "Check and Adjustment" item.
(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) Push in the ejector with the finger to bring about the cassette
load status (Figs. 302, 303).
(d) Extract the connector J9.
(e) Extract the connectors J8 and JI0.
(f) Remove the three mounting screws from the interrupter C AssTy, and
detach the interrupter C Ass'y (Fig. 438).
(g) Attach the new interrupter C Ass'y in the reverse procedure to the
above.
At this time, beware of the following items:
(i) Insert the three positioning parts of the interrupter C
ASs'y exactly into the chassis holes. (Fig. 439)
(ii) Attach the interrupter C Ass'y so that the face A touches
the side face of the lever bas.e (Fig. 440).
(iii) Check if there is a clearance between the photo interrupter
of the interrupter C Ass T y and the loading arm (M) (Fig.
440).
(h) Connect the connector J9.
(i) Connect the connectors J8 and JI0.
(j) Check the file protect sensor in accordance with Item 4-3-4.
(k) Check the cassette loading/unloading operation in accordance with
Item 4-3-5.
(1) Attach the PCBA Interface Control in accordance with Item 4-4-10.
(m) Attach the protector guide in accordance with Item 4-2-3.(2).
(n) Perform the overall check in accordance with Item 4-3-22.
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