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Condition
.
VFO
circuit
pulling
in
i
Data
read
out
(LOW
CURRENT-N)
(MFM
GATE-N)
VFO
SYNC-N
DATA
AREA-N
ere
FDD412A/B
Description
In
reading
data
from
inner
tracks
(44.76).
In reading
MFM
data.
The
data
read
out
is
auto-
matically
transferred
to the
FDC.
The
FDC
gives
a command
after
detecting
AM in
the
data
part.
With
the
VFO
provided
(model
A),.
data
and
clock
bits
are
auto-
matically
separated
for
trans-
mission.
~23—
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