392 Keysight Technologies N9040B UXA Signal Analyzer Service Guide
Assembly Replacement Procedures
RF Area - Options 544, 550
Replacement
1. Assure the shield are installed on both attenuators.
2. Refer to Figure 15-40. Position the attenuator in the bracket so that the
ribbon connector end is “down”.
3. Replace the two screws (0515-0372) that attach the attenuator to the
bracket. Torque to 9 inch-pounds.
4. Position the attenuators and bracket into the chassis and attach with the
three screws (3) (0515-0372). Torque to 9 inch-pounds.
5. Replace the ribbon cable and semi-rigid cables W2, W3, W4, and W51 to
the attenuators. Torque the semi-rigid cables to 10 inch-pounds.
6. Replace the RF bracket, front panel, and instrument outer case as
described on page 360.
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