Information In This Chapter; Chapter Four At-A-Glance - Keysight N5224A Service Manual

Troubleshooting

Information in This Chapter

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
'Getting Started with Troubleshooting'
'Power Up Troubleshooting'
'Front Panel Troubleshooting'
'Rear Panel Troubleshooting'
'Measurement System
Troubleshooting'
Instrument Block Diagrams
4-2
Summary of Content
A starting point for troubleshooting.
Power-up problems:
• Power supply problems
• LCD problems
• Bootup for the network analyzer interface
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?
Problems associated with the rear panel
interconnects.
The data found at these rear panel interconnects can
be used to troubleshoot the CPU board.
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.
Block diagrams for the analyzer including all options.
PNA Series Microwave Network Analyzers
N5224A and N5225A
Start Page
Page 4-4
Page 4-6
Page 4-13
Page 4-17
Page 4-23
Page 4-43
Service Guide N5225-90001