260 Keysight N9038A MXE Service Guide
RF Downconverter Section
RF Downconverter Section Troubleshooting
Figure 6-22 A13 RF Front End High Band Signal Path
13.If the signal level is incorrect the most likely cause of the problem is the
A13 RF Front End assembly itself.
Before replacing an A13 RF Front End assembly for any failure, refer to Chapter 8, “Front End
Control.” for information on how to verify the control signals to it.