Agilent Technologies N5241A, Service Manual

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Service Guide N5242-90001 4-3
PNA Series Microwave Network Analyzers Troubleshooting
N5241A/42A Operating the Analyzer With Covers Removed
Conventions Used for Hardkeys, Softkeys, and Menu Items
The following conventions are used in this document:
Operating the Analyzer With Covers Removed
CAUTION Do not operate the analyzer with the outer cover removed for more than
30 minutes, as this could cause the analyzer to overheat which could result in
costly damage.
Protect Against Electrostatic Discharge (ESD)
This is important. If not properly protected against, electrostatic discharge can seriously
damage your analyzer, resulting in costly repair.
CAUTION To reduce the chance of electrostatic discharge, follow all of the
recommendations outlined in
“Electrostatic Discharge Protection” on
page 1-6 , for all of the procedures in this chapter.
Assembly Replacement Sequence
After identifying the problem requiring an assembly to be replaced, follow these steps:
Step 1. Order a replacement assembly. Refer to Chapter 6, “Replaceable Parts.”
Step 2. Replace the faulty assembly and determine what adjustments are necessary.
Refer to
Chapter 7, “Repair and Replacement Procedures.”
Step 3. Perform the necessary adjustments. Refer to Chapter 3, “Tests and Adjustments.”
Step 4. Perform the necessary performance tests. Refer to Chapter 3, “Tests and
Adjustments.”
This represents a “hardkey”, a key that is physically located
on the instrument.
This represents a “softkey”, a key whose label is determined
by the instrument firmware.
Menu Item This represents an item in a drop-down or pop-up menu.
Hardkey
Softkey