Keysight N9040B Option 508 - Replacement

442 Keysight Technologies N9040B UXA Signal Analyzer Service Guide
Assembly Replacement Procedures
A6 Power Supply
Replacement
Serial Number Prefix < 5605 Options 508, 513, 526
1. Reinstall the power supply into position in the chassis and slide forward to
mate with the rear motherboard.
2. Refer to Figure 15-88. Replace the five screws (2) (0515-0372) that
attach the power supply (1) to the chassis. Torque to 9 inch-pounds.
3. Replace the top brace as described in the “Top Brace and Card Cage
Brace” replacement procedure.
4. Replace the instrument outer case. Refer to the “Instrument Outer Case”
replacement procedure.
Serial Number Prefix ≥ 5605 and All Options 544 and 550
1. Reinstall the power supply into position in the chassis and slide forward to
mate with the rear motherboard.
2. Refer to Figure 15-90. Replace the nine screws (2) (0515-1946) that
attach the A6 power supply (1) to the bracket. Torque to 9 inch-pounds.
3. If the instrument has Option B2X or B5X, the A22 and A23 Wideband
Digital I.F. boards must be replaced. Refer to the “A22 & A23 Wideband
Digital I.F. Boards” replacement procedure.
4. Replace the top brace as described in the “Top Brace and Card Cage
Brace” replacement procedure.
5. Replace the instrument outer case. Refer to the “Instrument Outer Case”
replacement procedure.