Keysight CXG, EXG, and MXG X-Series Signal Generators Service Guide 93
Self Test
Troubleshooting Self Test 901 to 905
8. Set up the generator:
a. Press Preset
b. Press Frequency and set to 1 GHz
c. Press I/Q, and set I/Q to On
9. The output signal frequency from J2004 should be 1 GHz at 0 dBm
±5 dB.
10.Repeat steps 7b and 8b for frequencies 2, 3, 4, 5 and 6 GHz.
11.If the measurements are within range, the A3 RF assembly is likely good.
replace the A2 Vector assembly.