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180 Chapter 5
If You Have a Problem
Problem Symptoms and Solutions
Problem Symptoms and Solutions
The following section describes some transmitter tester problem
symptoms and possible solutions to those problems. They include:
“Key or Feature Does Not Appear in Menu” on page 180.
“Frequency Unlock or External Reference Missing - Error Messages”
on page 181.
“LAN External Loopback Test Failed - Error Message” on page 181.
“Instrument Fails Alignment - Error Message” on page 181.
“Measurement Keys Do Not Appear after Pressing the Mode Key” on
page 182.
“Instrument Power-On Problem” on page 182.
“LAN Communication Problem” on page 182.
“Instrument Keyboard is Locked” on page 182.
Key or Feature Does Not Appear in Menu
Symptom: You are unable to locate a key for a feature you want to use
in a particular measurement.
Solution 1: Many features are available only for making specific
measurements, and do not apply to other measurements. Verify that
the feature you are seeking is available for that particular
measurement by examining the key access table on page 53. Notes in
the key access path column indicate whether a feature can only be used
with a particular measurement. You can also review the section which
documents the measurement you are using, and indicates which
features apply to that measurement.
Solution 2: Some features are only available when using a specific
mode. Review the section describing the mode to verify that a feature is
available.
Solution 3: Some features of the transmitter tester are not yet
available and will be implemented with a future firmware release. For
an update on the status of firmware upgrades you can check the
following URL: www.agilent.com/find/vsa/.