400 Keysight NFA Series Noise Figure Analyzers Service Guide
Assembly Replacement Procedures
RF Area (N8973B, 74B, 75B)
To gain access to any of these parts, follow these steps:
1. Remove the instrument outer case. Refer to the “Instrument Outer Case”
removal procedure.
2. Remove the top brace. Refer to the “Top Brace” removal procedure.
3. Remove the front panel. Refer to the “Front Frame Assembly” removal
procedure.
4. Refer to Figure 15-8. Remove the chassis side, right (1) by removing the
thirteen screws (2) using the T-10 driver.
Figure 15-8 RF Bracket Removal