Keysight Technologies N9040B UXA Signal Analyzer Service Guide 147
RF Section Troubleshooting (RF/Microwave Analyzers)
Troubleshooting
IMPORTANT Turn off auto align by pressing System, Alignments, Auto Align, Off.
Disconnect the W16 cable from A15J902 on the Front End Controller IF IN. The
end of W16 cable is easily accessed from the top of the instrument (See Figure
4-2.
Figure 4-2 W16 at Front End Controller