System Level Troubleshooting - Keysight Technologies N5261A User's And Service Manual

Installation & System Operation

System Level Troubleshooting

If the
following procedure to isolate the problem.
Refer to the Keysight PNA Series: firmware, Upgrades, and Support at:
http://na.support.keysight.com/pna for further information.
To request service, please contact your local service center. In the US, call
800-829-4444. For a listing of service centers worldwide, please visit us at
http://www.keysight.com/find/service.
1. Confirm that each piece of equipment is turned on and that all analyzer
2. Verify that the analyzer has the correct options for Millimeter mode
3. Verify that the analyzer is in Millimeter mode for the waveguide band of
4. If the receiver levels (A,B, C, D or R 1) fail the Banded System check refer
5. If one of more of the ports are working, substitute the mm-module with a
Turn off the test set before disconnecting or reconnecting the modules.
6. Confirm that the analyzer is working properly by disconnecting it from the
7. If the analyzer is operating properly, verify the test set by performing the
8. If the analyzer, test set and modules are functioning, but the system is not
Keysight N5261/62A User's & Service Guide
System Operation Verification
and module connections are correct.
operation. Refer to "Test Set Accessories" on page
the modules used.
to the Measure, Test and Reference graphs in the documentation included
with the module. If the REF IF and Test IF levels are low connect the REF IF
and TEST IF cables directly from the mm-wave module to the analyzer's
rear panel IF Inputs. If the levels are correct proceed to
are low continue with
known working module. If the port is still not working measure the RF Out
and LO Out power from the test set's RF Out and LO Out connectors at the
end of the cables. Replace or substitute the cables if the loss is greater
than the cable specification. If the cables are not the cause proceed to
.
step 7
test set and performing an Operation Verification (OP VER) in the Help
menu.
"Troubleshooting the Test Set" on page
operating properly, contact
on page 92.
procedure fails, perform the
.
step 5
63.
"Keysight Support, Services, and Assistance"
4.
. If the levels
step 7
47