Keysight NFA Series Noise Figure Analyzers Service Guide 443
Assembly Replacement Procedures
Analog I.F. (AIF)/Digital I.F. (DIF) Assembly
Replacement
1. Slide the AIF/DIF assembly into the slot at the rear of the instrument and
push on the assembly to mate the connectors to the midplane assembly.
2. Refer to Figure 15-40. Replace cables W13, W14, and W15 or W37 to the
AIF assembly.
3. Refer to Figure 15-39. Replace the appropriate cables to the bottom of the
DIF assembly.
4. Replace the rear panel. Refer to the “Rear Panel” replacement procedure.
5. Replace the instrument outer case. Refer to the “Instrument Outer Case”
replacement procedure.
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