HP 70000 series - HP-IB Troubleshooting

f.
Press
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ANALYZR
TEST
.
9. Record any error messages, including the model numbers and HP-MSIB addresses displayed
in the error message block of the screen display.
Use the error messages, including model numbers and addresses, to identify the faulty
element. Refer to Chapter 5, \Error Messages," for an explanation of the displayed error
messages.
Note
When
testing
a lightwave signal analyzer using the Operation Verication
program,
only
the performance of the spectrum analyzer portion of the
lightwave signal analyzer system is veried. For further troubleshooting
information about the lightwave section, refer to \Troubleshooting a Lightwave
Signal Analyzer".
If no error messages are generated by this procedure and an instrument failure is still
suspected,
run
the
Operation
V
erication
program to verify that the analyzer meets its major
specications
.
Details for running the Operation Verication program are provided in HP 70000 Modular
Spectrum Analyzer Installation and Verication Manual . The following Operation Verication
function softkeys are particularly useful troubleshooting tools.
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Single Test is helpful for testing individual specications, allowing only the suspect
function
to
be
tested.
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Repeat
Test
is
used
to
test
an
individual
specication
repeatedly
,
allowing
an intermittent
failure
in
one
suspect function to be tested.
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Multiple
Tests
is
helpful
for
testing
multiple
specications
, allowing more than one
suspect function to be tested.
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Repeat
Mult.
is
used
to
test multiple specications repeatedly, allowing an intermittent
failure in more than one suspect function to be tested.
For more information about these function softkeys, refer to the HP 70000 Modular Spectrum
Analyzer Installation and Verication Manual .
Troubleshooting Over the HP-IB
Troubleshooting over HP-IB is recommended only if there is no display element (for example,
an HP 70205A graphics display) available.
The following analyzer remote commands may be
used to test the analyzer from an external
HP-IB computer
. The remote command, \TEST
," performs the same tests that are performed
when the
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ANALYZR TEST softkey is used.
TEST begins the analyzer test routine for the HP 70900B local oscillator source.
ERR (error query) returns the error number for each unreported analyzer error.
These errors include those reported by both the analyzer test and background
tests (for example, Operating Errors 2000|2999).
XERR (extended error query) returns the same information as the ERR programming
command, except that it also returns an ASCII description of each error and
the HP-MSIB address of the module that generated the error.
The commands listed above, along with their syntax, are described in HP 70000 Modular
Spectrum Analyzer Programming Manual .
Troubleshooting 5-13