Chapter 2 45
Overall Troubleshooting
Check the Basics
Check the Basics
Before calling Agilent Technologies or returning the instrument for
service, please make the following checks:
1. Is there power at the power outlet? At the power receptacle on the
instrument?
2. Is the instrument turned on? Check to see if the front panel LED is
green, which indicates the power supply is on.
3. If other equipment, cables, and connectors are being used with the
instrument, make sure they are connected properly.
4. Review the procedure for the measurement being performed when
the problem appeared. Are all the settings correct?
5. If the instrument is not functioning as expected, return the unit to a
known state by pressing the
Preset key.
6. Is the measurement being performed, and the results that are
expected, within the specifications and capabilities of the
instrument? Refer to the specifications book for specifications.
7. In order to meet specifications, the instrument must be aligned.
Press
System, Alignments, Align All Now. The diagnostic tests should
all pass. If the instrument displays a failure during these tests, refer
to “Troubleshooting Using Auto-Align Tests” on page 49.
8. Check to see if the instrument has the latest firmware before
starting the troubleshooting procedure. Press
System, More, Show
System
. The firmware revision is listed under Firmware Rev. For
more information, refer to “Firmware Upgrades” on page 429.
9. Is the instrument displaying an error message? If so, refer to the
Instrument Messages and Functional Tests guide for more
information.
10.If the necessary test equipment is available, perform the functional
checks in the Instrument Messages and Functional Tests guide for
your instrument.
11.Use Table 2-1 on page 46 to identify the instrument’s symptoms and
the specific section (in this guide) which explains troubleshooting
procedures for the associated symptoms.
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