408 Keysight Technologies N9040B UXA Signal Analyzer Service Guide
Assembly Replacement Procedures
RF Area - Options 544, 550
4. Refer to Figure 15-56. Unplug ribbon cables W22 and W28, and wire
harness W12 from the Front End Controller board.
Figure 15-56 Front End Controller Board Cables
5. Refer to Figure 15-57. From the bottom of the instrument, remove the six
screws (2) (0515-0372) that attach the Front End assembly (1) to the
chassis. The Front End assembly can now be removed.
Figure 15-57 Front End Assembly Bottom Screws - Removal