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Keysight U3045AM04 User’s and Service Guide
U3045AM04
Service Information
1-
Troubleshooting the Test Set
If the U3045AM04 is not operating properly, use the following procedures to
isolate and repair the type of failure encountered. 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
www.
k
eysight.com/find/service
.
No operator serviceable parts inside. Refer servicing to qualified
personnel. To prevent electrical shock do not remove covers.
Non-RF Failures
Typical malfunctions may be the rear panel fan, control lines or front panel
indicator lights.
1.
Verify that the front panel Power Switch is operational.
a.
The rear panel fan and front panel Active LED should operate when
the Standby Switch is in the On position.
2.
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. Confirm the
instrument AC line module fuse is operational. See
c.
Internal AC line fuses - Remove the bottom cover of the instrument.
Near the rear panel are two fuse holders, remove the fuses and
verify that they are operational. Refer to
The opening of covers or removal of parts is likely to expose the user to
dangerous voltages. Disconnect the instrument from all voltage
sources before being opened.
3.
Internal DC Power - During this check you will apply AC power to the
instrument with the top cover removed. Connect the AC power cord to the
test set.
a.
Set the front panel switch to the Standby position. The fans and
indicator lights should be Off.
