298 Keysight N9010A EXA Service Guide
Analog/Digital IF Troubleshooting
40 MHz BW IF Section
10.Refer to Figure 7-20, carefully disconnect W38.
Figure 7-20 A3 Digital IF Cables
11. Connect the W38 cable to the MMCX female to SMA female connector.
Use an appropriate cable to go from the SMA connector to the RF input of
a functioning spectrum analyzer to verify the 250 MHz I.F. signal
frequency and amplitude is correct.
12. Press Freq, 250 MHz, Span, 1 MHz, Peak Search on the functioning
spectrum analyzer.