Checking The Receiver Group - Keysight Technologies N5221A Service Manual

Troubleshooting
Measurement System Troubleshooting

Checking the Receiver Group

Equipment Used for These Tests
Equipment Type
Spectrum analyzer
a. Refer to Note on page 4-28. Must be capable of measuring signals at 7.61 MHz (analyzers with
DSP version 4.0), or 7.44 MHz (analyzers with DSP version 5.0), and 1 GHz.
For all of the following checks, refer to the block diagrams at the end of this
chapter and to any of the following that are appropriate:
— "2-Port Configuration, Option 200" on page 6-21
— "Bottom RF Cables, Standard 2-Port Configuration, Option 200" on
page 6-23
— "Bottom Assemblies, 2-Port, Option 219" on page 6-47
— "Bottom RF Cables, 2-Port, Option 219" on page 6-49
— "Bottom Assemblies, Standard 4-Port Configuration, Option 400" on
page 6-54
— "Bottom RF Cables, Standard 4-Port Configuration, Option 400" on
page 6-56
— "Bottom Assemblies, 4-Port, Option 419" on page 6-84
— "Bottom RF Cables, 4-Port, Option 419 (Ports 1 and 2)" on page 6-86
— "Bottom RF Cables, 4-Port, Option 419 (Ports 3 and 4)" on page 6-89
Getting Ready to Test
Before checking the assemblies, you must open the analyzer.
Use an antistatic work surface and wrist strap to reduce the chance of
electrostatic discharge for all of the procedures in this chapter.
1. Turn off the analyzer power.
2. Unplug the power to the analyzer and disconnect all front and rear panel
connections except installed jumpers.
3. Remove the outer and inner covers from the analyzer. Refer to
the Covers" on page
Procedures described in this document are performed with power
supplied to the product while protective covers are removed. Energy
available at many points may, if contacted, result in personal injury.
Keysight N5221A/22A Service Guide
Model or
Part Number
8565E
7-6.
Alternate Model or Part
Number
a
856xE
"Removing
4-43