Teac FD-55 Series, Maintenance Manual

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(2) SKA method
(a) Connect the SKA referring to item 4-2-4 and set the FD PWR switch to
the PSA side.
(b) Execute drive select by key "0". (DSO indicator turns on).
(c) Key in "CO" and confirm that “the TRACK indicator becomes "00".
(RECALIBRATE). ^ v. .
(d) Set the step rate and the settling time as follows referring to item
4-2-4-3.
48tpi: Step rate 6msec, Settling time 15msec
96tpi: Step rate 3msec, Settling time 15msec
(e) Key in "9". (STEP OUT)
(f) Confirm that the head carriage does not move even if "9" is keyed in
(head carriage rests on track 00).
(g) Confirm that the gap between the head carriage and the extreme end
of the track 00 stopper is 0.1 'v, 0.4mm. (See Fig.434) .
(h) Key in "CO" and key in "C5". (STEP TIMING, SgEK ±5)
(i) Confirm that no impact sound can be heard between the head carriage
and the track 00 stopper.
(j) Turn off the FD PWR switch of the SKA and depress the head carriage
lightly against the track 00 stopper. (See Fig.434).
t
(k) Confirm that the head carriage automatically returns to the initial
position (track 00) when the FD PWR switch is set to the PSA side again
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