4-4 Service Guide E8364-90038
Troubleshooting PNA Series Microwave Network Analyzers
Getting Started with Troubleshooting E8362C, E8363C, E8364C
Getting Started with Troubleshooting
Where you begin troubleshooting depends upon the symptoms of the failure. Start by checking the basics as
outlined in the following section. Also review the flowchart in Figure 4-1 on page 4-5. You should then be
able to determine where in the troubleshooting procedure to begin, to locate the failed assembly.
Check the Basics
A problem can often be solved by repeating the procedure you were following when the problem occurred.
Before calling Agilent Technologies or returning the instrument for service, please perform the following
checks:
1. Is there power at the mains receptacle? If not, correct this situation and proceed.
2. Is the instrument turned on? Check to see if the front panel line switch glows. This indicates the power
supply is on. If the front panel line switch is on but the power supply does not appear to be on, go to
“Power Up Troubleshooting” on page 4-6.
3. Is the Windows
® operating system running? If not, refer to “Operating System Recovery” in Chapter 8
for instructions.
4. If other equipment, cables, and connectors are being used with the instrument, make sure they are
clean, connected properly and operating correctly.
5. If the PNA has Option 014, verify that the cables are connected properly.
6. Review the procedure for the measurement being performed when the problem appeared. Are all the
settings correct? If not, correct them.
7. If the instrument is not functioning as expected, return the unit to a known state by pressing the
Preset
key.
8. Is the measurement being performed, and the results that are expected, within the specifications and
capabilities of the instrument? Refer to the embedded help in the analyzer for instrument specifications.
9. If the problem is thought to be due to firmware, check to see if the instrument has the latest firmware
before starting the troubleshooting procedure. Refer to “Firmware Upgrades” in Chapter 8 for
instructions.
10. If the necessary test equipment is available, perform the operator’s check and system verification in
Chapter 3, “Tests and Adjustments.”
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