HP 8924E, Assembly

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Chapter 2, Troubleshooting
Further Isolating RF Failures
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Further Isolating RF Failures
Isolating failures in the RF assemblies of the Test Set can be difficult. One
problem is that the RF Diagnostics sometimes use the built-in RF analyzer to test
the built-in RF source, and vice versa. This is necessary to make the diagnostics
self-contained, that is, they run without external equipment.
Before using the helps in this section, run all of the RF Diagnostics (
see "More
About Step 2- Run the Functional Diagnostics," in chapter 2, on page 81
) It will also
be helpful to become familiar with:
• the RF source and analyzer block diagrams and theory of operation in chapter 11,
"Block Diagrams"
• the description of the RF and Miscellaneous Diagnostic tests in chapter 14,
"Diagnostics Descriptions" .
Some general-purpose, RF test equipment will be needed:
• RF signal generator
• RF modulation analyzer or spectrum analyzer.