442 N9030B PXA Signal Analyzer Service Guide
Assembly Replacement Procedures
RF Area (Options 503, 508, 513, 526)
Replacement
1. Refer to Figure 16-8. Position the attenuator in the bracket so that the
ribbon connector end is “up”.
2. Replace the two screws (0515-0372) that attach the attenuator to the
bracket. Torque to 9 inch-pounds.
3. Position the attenuator and bracket into the chassis and attach with the
two screws (0515-0372). Torque to 9 inch-pounds.
4. Replace the ribbon cable and semi-rigid cables W2, W3, W4, or W6 to the
attenuator. Torque the semi-rigid cables to 10 inch-pounds.
5. Refer to Figure 16-7. Position the RF bracket onto the chassis and replace
the sixteen screws (0515-0372). Torque to 9 inch-pounds.
6. Replace the front panel. Refer to the Front Frame Assembly replacement
procedure.
7. Replace the instrument outer case. Refer to the Instrument Outer Case
replacement procedure.
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