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DR- UA124X-
2, DR- UA124X-
3
DR - UA124X- 5
1.
SAFETY INFORMATION
This service manual is Intended for qualified service technicians; It Is not meant for the casual
do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been
trained to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void
the warranty. If you are
not
qualified to perform the repair of this product properly and safely, you should
not risk trying to do
so and
refer the repair to a qualified service technician.
WARNING
Lead
in
solder used
In this product Is listed
by
the
California Health
and
Welfare agency as a
known reproductive toxicant which
may cause birth defects or
other reproductive
harm (California Health & Safety Code, Section
25249.5).
When
servicing
or handling
circuit
boards and other
components
which contain lead in solder,
avoid
unprotected
skin
contact with
the solder. Also, when
soldering
do not inhale any smoke or fumes produced
.
. - (FOR EUROPEAN MODEL ONLY)
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RADIATION
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WARNING!
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DEVICE
IN
CLUDES
LASER DIODE WHICH
EMITS INVISIBLE
INFRARED RADIATION
WHICH
IS DANGEROUS TO EYES
.
THERE
IS
A WARNING
SIGN
ACCORDING
TO
PICTURE
1
INSIDE
THE DEVICE CLOSE TO THE
LASER
LASER
DIODE
.
Picture
1
Warning
sign for
la
ser
radi ation
IMPORTANT
THIS PIONEER
APPARATUS CONTAINS
LASER OF
CLASS
1
.
SERVICING
OPERATION OF THE APPARATUS
SHOU
LD
BE DONE BY A
SPECIALLY
INSTRUCTED PERSON
~LASER
DIODE CHARACTERISTICS
l
XIMUM
OUTPUT
POWER: 5 mw
VELENGTH
:
780-785
nm
Additional
Laser Caution - - - -
--
-.
1.
Laser
Interlock
Mechanism
The position
of
the
switch
(S902) for detecting
loading
completion
is detected by
the system
microprocessor,
and
the
design
prevents laser diode oscillation when
the
switch
($902) is not in
CLMP terminal
side
(when
the
mechanism
is not
clamped and
CLMP
signal is
high level).
Thus,
the
interlock
will no
longer function
if the
switch
(S902) is
deliberately set
to CLMP terminal
side.
(if CLMP
signal
is low
level).
In
the
test mode
*
the interlock mechanism will not
function.
Laser
diode
oscillation will
continue,
if pin 4 of TA2066F
(IC204) on
the MOTHER
board assy
are
connected
to
GND,
or
pin 19 is
connected to high
level
(ON), or else the
terminals of
0206
are
shorted
to
each other (
fault
condition
).
2.
When the cover is
opened,
close
viewing of the
Objective
lens
with
the
naked
eye
will
cause exposure
to
a
Class 1
laser beam.
*
:
Refer
to
page
23.
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