Replacement - Keysight N8973B Service Manual

Assembly Replacement Procedures
RF Front End Assembly (N8973B, 74B, 75B)
Figure 15-24 RF Front End Assembly Removal

Replacement

1. Refer to
2. Reattach ribbon cable W17 to the RF Front End Assembly.
3. Reattach the cables W3, W4, W5, W7, W15 or W36, and W20 to the RF
W7 will not be present on the N8973B.
4. Replace the front panel. Refer to the
5. Replace the instrument top brace. Refer to the
6. Replace the instrument outer case. Refer to the
Keysight NFA Series Noise Figure Analyzers Service Guide
Figure 15-24. Place the RF Front End Assembly into the chassis.
Replace the four screws (2). Torque to 9 inch-pounds in the sequence
shown, starting with #1.
Front End Assembly (1). Torque the semi-rigid cables to 10 inch-pounds.
procedure.
procedure.
replacement procedure.
"Front Frame Assembly"
"Top Brace"
"Instrument Outer Case"
replacement
replacement
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