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3.
System
ConflQuratlon
The SMO-0501
MO
Disk Drive consists
of
several
mechanical
blocks,
an
optical block,
and
electrical
blocks.
The
electrical
blocks contain
all
of
the
an
analog
and
digital circuitry
for
the
drive functions.
The
analog
circuitry
includes laser
diode
drive,
RF
block
and
the
servo
systems
for
focusing
and
tracking.
The
digital circuitry
includes
analog/mechanism
control
logic,
modulator/demodulator
and
drive interface
(modified
ESDI)
logic.
The
block
diagram
of
the
SMO-D501
drive
is
shown
in
Fig.3.1.
1
4
Section
3:
System
Configuration
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