
9-1.
Laser
diode
The
laser
diode
terminals
are
shorted
for
transportation
in
order
to
prevent
electrostatic
damage.After
replacement,open
the
shorted
circuit.When
removing
the
pickup
from
the
mechanism,
short
the
terminals
by
soldering
them
to
prevent
this
damage.
9-2.
Actuator
The
actuator
has
a
powerful
magnetic
circuit.If
a
magnetic
material
is
put
close
to
it.its
characteristics
will
change.Ensure
that
no
foreign
substances
enter
through
the
ventilation
siots
in
the
cover.
9-3.
Cleaning
the
lens
Dust
on
the
optical
lens
affects
performance.To
clean
the
lens,apply
a
small
amount
of
isopropylalcohol
to
lens
paper
and
wipe
the
lens
gently.
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