Keysight NFA Series Noise Figure Analyzers Service Guide 441
Assembly Replacement Procedures
Analog I.F. (AIF)/Digital I.F. (DIF) Assembly
4. Refer to Figure 15-40. Pull the AIF/DIF assembly part way out of the
chassis. Remove cables W13 or W41, W14, and W15 or W37 from the AIF
assembly.
5. The AIF/DIF assembly can be removed from the chassis by pulling straight
out the back.
Figure 15-40 AIF/DIF Assembly Removal