Agilent Technologies ENA Series User Manual page 385

The Error Message "Port N receiver overload" (N denotes a port number) is
Displayed.
• During the measurement of an amplifier, Error Messages 221 through 224 "Port N
receiver overload" (N denotes a port number) on page 385 are displayed.
This error occurs when the input to a test port exceeds the maximum input level in the
measurement of an amplifier. The measurement value obtained in such a case is not
correct. In the worst case, a failure (damage to the receiver) may occur.
Change the measurement condition so that the input to the test port does not exceed
the maximum input level.
When this message is displayed with nothing connected to the test port, there is a
possibility of a failure of the instrument. Contact Agilent Technology's Customer
Contact listed at the end of this guide or the company from which you bought the
device.
A Clearly Abnormal Measurement Value
• The measurement value is not reproducible, or clearly abnormal.
Confirm that the DUT, connection cables, and other parts are connected correctly.
Confirm that the connectors and cables used to connect the DUT are free from
damage and poor contact.
Confirm that the calibration has been executed correctly. If you have not acquired a
correct error correction factor, you cannot obtain a correct measurement value.
Confirm that the calibration kit was selected correctly.
Confirm that the calibration kit is defined correctly.
When taking all these measures does not result in a correct measurement value, there is a
possibility of a failure. Contact Agilent Technology's Customer Contact listed at the end of
this guide or the company from which you bought the device.
The System Cannot be Operated Manually (Front Panel Keys, Keyboard, and
Mouse)
• The keyboard or mouse becomes inoperable.
Confirm that the keyboard or mouse is connected correctly. When it is connected
correctly, turn off the power once, and restart the system.
• The front panel key or keyboard becomes inoperable.
Using the mouse, turn
• The mouse becomes inoperable.
Using the front panel keys or keyboard, turn
OFF.
Keyboard Lock
• All of the front panel keys, keyboard, and mouse become inoperable.
Confirm that the keyboard or mouse is connected correctly. When it is connected
correctly, turn off the power once, and restart the system.
• The keyboard and mouse have been connected after power-on.
Appendix B
– –
System Key Lock Front Panel & Keyboard Lock
System
Troubleshooting
Troubleshooting
OFF.
– –
Key Lock Front Panel &
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