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FDD412A/B
(2)
The
VFO
circuit
modifies
in
timing
the
signals
read
out
from
the
floppy
disk,
divides
them
into
clock
and
data
signals,
and
trans-~
mits
them
to
the
FDC.
;
Door
lock
solenoid
Door
switch
SS
Indicator
LED
PS
~t
Index
1
Floppy
disk
|
t
;
sensor
[
S
|
(Photo-
ae
DD
;/{
transis-
tors)
\
ea
Spindle
Collet
motor
{Index
sensor
(LEDs)
|
Carriage
Step
motor
File
protect
sensor
Head
load
solenoid
0 track
sensor
Spindle
motor
|
VFO
Control
electronics
control
circuit
circuit
(Read/write
control
circuits)
Fig. 2.3
Device
Composition
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