4-2 Service Guide N5227-90001
Troubleshooting PNA Series Microwave Network Analyzers
Information in This Chapter N5227A
Information in This Chapter
The information in this chapter helps you:
• Identify the portion of the analyzer at fault.
• Locate the specific troubleshooting procedure to identify the assembly or peripheral at fault.
The sections in this chapter are arranged in a logical troubleshooting order. The following table lists the
sections and a brief summary of what to look for in that section.
Chapter Four at-a-Glance
Section Title Summary of Content Start Page
‘Getting Started with Troubleshooting’ A starting point for troubleshooting. Page 4-4
‘Power Up Troubleshooting’ Power-up problems:
• Power supply problems
•LCD problems
• Bootup for the network analyzer interface
Page 4-6
‘Front Panel Troubleshooting’
Problems occurring after the network analyzer
interface is loaded:
• Does the display color appear correct?
• Do the front panel keys function properly?
• Does the front panel USB connector function
properly?
Page 4-13
‘Rear Panel Troubleshooting’
Problems associated with the rear panel
interconnects.
The data found at these rear panel interconnects can
be used to troubleshoot the CPU board.
Page 4-17
‘Measurement System
Troubleshooting’
Problems with the measurement portion of the
analyzer.
• Checking the A, B, R1, and R2 signals.
• Checking the source group.
• Checking the signal separation group.
• Checking the receiver group.
Page 4-23
Instrument Block Diagrams Block diagrams for the analyzer including all options. Page 4-44
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