Table of Contents
Advertisement
Table
6-5.
70787A
Pulse
Converter
Troubleshooting
I
PRELIMINARY
PROCEDURE
1.
If
the
laser
head
does
not emit
red
light,
check
that
the
rear-panel
POWER
ON
light
i s
lit.
If
it
i s
not,
check
for
a
power
line
short.
This
can
cause
the
power
supply
to
current
limit
and
reduce
the
voltage
output
level
to
near
zero
volts.
Also
check
for
an
open
circuit
in
the
power
supply
wiring.
If
the
POWER
O N
light
is
lit,
check
the
status
of
the
four
rear-panel
indicators
associ-
ated
with
the
+15-volt
supplies
(two
UNBAL
indicators
and
two
FUSE
indicators).
If
power
is
available
to
the
laser
head
but
the
head
does
not
emit
red
light,
refer
to
the
separate
manual
for
the
laser
head
for
further
troubleshooting
information.
2.
If
the
LED
indicator
on
one
of the
system
receivers
does
not
light,
verify
that
the
+15
volts
is
present
at
the
system
cable
connector
for
the
receiver.
If
it
is
not,
troubleshoot
the
power
supply
and
the
system
wiring.
If
voltage
is
present
at
the
receiver
connector
and
the
LED
is
not
lit,
refer
to
the
separate
manual
for
the
receiver
for
further
troubleshooting
information.
INSTALLATION
A N D
ALIGNMENT
O F
LASER
HEAD,
RECEIVER,
AND
OPTICS
PROCEDURE
1.
If
the
laser
head
does
not
emit
red
light,
check that
the
rear-panel
POWER
ON
light
is
lit.
If
it
is
not,
check
for
a
power
line
short.
This
can
cause
the
power
supply
to
current
limit
and
re-
duce
the
voltage
output
level
to
near
zero
volts.
Also
check
for
an
open
circuit
in
the
power
supply
wiring.
If
the
POWER
ON
light
is
lit,
check
the
status
of
the
four
rear-panel
indicators
associated
with
the
fl5-volt
supplies
(two
UNBAL
indicators
and
two
FUSE
indicators).
If
power
is
available
to
the
laser
head
but
the
head
does
not emit
red
light,
refer
to
the
separate
manual
for
the
laser
head
for
further
troubleshooting
information.
2.
If
the
LED
indicator
on
one
of
the
system
receivers
does
not
light,
verify
that
the
+I5
volts
is
present
at
the
system
cable
connector
for
the
receiver.
If
it
i s
not,
troubleshoot
the
power
supply
and
the
system
wiring.
If
voltage
i s
present at
the
receiver
connector
and
the
LED
is
not
lit,
check
optics
and
alignment
(refer
to
Section
11).
CHECKOUT
PROCEDURE
1.
If
the
up/down
or
the
A-quad-B
pulses
are
not
present
at
the
pulse
converter
output,
first
check
for
the
presence of
the
reference
and
measurement
signal
inputs
to
the
pulse
converter.
If
they
are
not
present,
troubleshoot
the laser
head
or
receiver
respectively.
If
both
signals
are
present,
replace
or
troubleshoot
the
pulse
converter.
Advertisement
Table of Contents
Troubleshooting
