Table of Contents
Advertisement
6.2
Troubleshooting Assumptions
The troubleshooting procedures make the following assumptions:
a.
That the detailed troubleshooting procedures use the installation and checkout proce-
dures in Section
V as a
basis for the directed troubleshooting. This means that the
further into the installation and checkout procedure you are, the more equipment that
you can assume is operating properly. For example, if you are using a 9825A Calculator
a s the system controller and it has passed its own diagnostic test, the subsequent
troubleshooting will assume that it is operating properly. Therefore, if it will not func-
tion with the 10745A HP-IB interface when they are connected together, the initial
replacement will be the 10745A.
b.
That all system controls have been double checked to verify that they are in the proper
positions.
c.
That
all
cabling is correctly and firmly connected and that all system cards are cor-
rectly addressed and have the proper jumpers installed.
d.
That interconnect wiring will be checked and cabling replaced or repaired as required
if the detailed troubleshooting does not correct the malfunction.
e.
That for any repair beyond the circuit board level, the individual unit manuals will be
used.
f.
That power is removed prior to replacing any units or circuit boards.
g.
That the system optics are clean. Refer to the paragraph on preventive maintenance
in Section
V.
h.
That
all power supplies have been checked for correct output voltages.
i.
The final and perhaps most important point to remember about troubleshooting
procedures is that they cannot cover all possible malfunctions or combination of mal-
functions. However, at the very minimum, they will get you to the general area of
the problem. At that point, if you have read and understand the information in the
manuals, you should be able to determine the cause of the malfunction.
CAUTION
Use
of
controls,
adjustments,
or
procedures
other
than
those
specified
herein
may
result
in
hazardous radiation
exposure.
6.3
GENERAL TROUBLESHOOTING INFORMATION
If
a
system
has
previously
been
operating,
the
possible
troubles
can
usually
be
divided
into
the
following
general
areas:
a.
Malfunction
of
the
laser
head.
b.
Malfunction
of
one
of
the
receivers.
c.
Malfunction,
misalignment,
or
improper
application
of
the
optical
devices.
d.
Malfunction
of
the
system
controller.
e.
Malfunction
of
the
coupler
and
interface
electronics.
f.
Malfunction
of
a
power
supply.
I f
the problem can be isolated to one or more of these problems, perform the appropriate
troubleshooting to isolate a trouble to an assembly or device. The information is arranged to
correspond to the general trouble areas listed above. If you cannot isolate the problem, refer
to the detailed troubleshooting procedures for additional information.
Advertisement
Table of Contents
Troubleshooting
