Service Guide N5227-90001 4-3
PNA Series Microwave Network Analyzers Troubleshooting
N5227A 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.
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