Keysight NFA Series Noise Figure Analyzers Service Guide 401
Assembly Replacement Procedures
RF Area (N8973B, 74B, 75B)
Low Band Switch - Standard RF/Microwave Instruments
Removal
1. Refer to Figure 15-9. Remove the ribbon cable W18.
2. Remove the semi-rigid cables W3, W8, and W9 using the 5/16 inch
wrench.
3. Remove the two screws (2) using the T-10 driver. The low band switch
(1) can now be removed from the chassis.
Figure 15-9 Low Band Switch Removal
W8 will not be present on the N8973B.
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