Keysight Technologies N9040B UXA Signal Analyzer Service Guide 191
Analog/Digital IF Troubleshooting
A2 Analog IF Troubleshooting
11.Carefully disconnect W25 cable at A15J900 as shown in Figure 6-1.
Figure 6-1 A15 RF Front End Control Assembly
12.Connect A15J900 to a functioning spectrum analyzer using the
appropriate MMCX connectors and cables.
13.Press Freq, 322.5 MHz, Span, 1 MHz, Peak Search on the functioning
spectrum analyzer.