Keysight Technologies Option 503 Service Manual page 464

Assembly Replacement Procedures
RF Area (Options 543, 544, 550)
Replacement
1. Refer to
2. Replace the two screws (0515-0372) that attach the attenuator to the
3. Position the attenuator and bracket into the chassis and attach with the
4. Replace the ribbon cable and semi-rigid cables W2, W3, W4, or W6 to the
5. Refer to
6. Replace the front panel. Refer to the
7. Replace the instrument outer case. Refer to the
464
Figure 16-44. Position the attenuator and magnetic shield in the
bracket so that the attenuator ribbon connector end is "up".
bracket. Torque to 9 inch-pounds.
two screws (0515-0372). Torque to 9 inch-pounds.
attenuator. Torque the semi-rigid cables to 10 inch-pounds.
Figure 16-43. Position the RF bracket onto the chassis and
replace the sixteen screws (0515-0372). Torque to 9 inch-pounds.
procedure.
replacement procedure.
Front Frame Assembly
Instrument Outer Case
N9030A PXA Signal Analyzer Service Guide
replacement