Keysight N5221A Service Manual page 119

2-port and 4-port pna microwave network analyzers (10 mhz - 13.5 ghz) (10 mhz - 26.5 ghz)

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Table of Contents

PNA Series Microwave Network Analyzers

5. If the measured signal is present, replace the A12 SPAM board. Refer to

A4–A13 Boards" on page

6. If the measured signal is not present replace the A20 IF multiplexer board. Refer to

Replacing the A20 IF Multiplexer Board" on page

Service Guide N5222-90001

Troubleshooting

Measurement System Troubleshooting

"Removing and Replacing the

"Removing and

Troubleshooting