U3022AM06
Troubleshooting the Test Set
Troubleshooting the Test Set
If the Test Set is not operating properly, use the following procedures to isolate the
problem. It is recommended that a qualified service technician perform the following
procedures.
Refer to the Keysight PNA Series: Service & Support Home Page at:
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://keysight.com/find/service
No operator serviceable parts inside. Refer servicing to qualified personnel. To
prevent electrical shock do not remove covers.
Non-RF Failures
Non RF failures are; Power Supply, Fans, Control Lines, Status LEDs or Interface
not operating. Refer to
1.
Verify that the front panel Power Switch is operational.The front panel Active LED
will be
off
unless the Test Set interface cable is connected and the Test Set is
addressed by the network analyzer.
2.
Turn
on
the Test Set and the analyzer.The rear panel Deck and Internal power
supply fans should be operational. If not continue with
step 3
.
3.
AC Line voltage checks (remove AC power from the instrument).
a.
Ensure the proper AC Line voltage is present at the instrument line cord.
b.
Remove the AC power cord from the instrument. Verify the instrument AC Line
Module fuse (2119-0709) and replace if necessary. Refer to
c.
Verify the Internal AC lines fuse (2110-0342). Remove the instrument bottom
cover. Near the rear panel are two fuse holders, verify the fuses and replace if
4.
Internal DC Power checks.
a.
Set the front panel switch to the Standby position. No fans or indicator lights
should be operational
b.
Remove the top cover.
c.
Set the Standby switch to the
on
position. Both the rear panel and internal
power supply fans should be operational. Verify that the DC indicator LEDs are
on
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Keysight U3022AM06 User's and Service Guide
