Keysight Technologies N5244/5B Service Manual page 572

Repair and Replacement Procedures
Removing and Replacing the A20 Power Supply Assembly
Removing and Replacing the A20 Power Supply Assembly
Tools Required
— T-10 TORX driver (set to 9 in-lb)
— T-20 TORX driver (set to 21 in-lb)
— ESD grounding wrist strap
Removal Procedure
IMPORTANT! If the rear power supply rear cover must be replaced, a new
KC label is required (part number N5240-80041). Refer to
Support, Services, and Assistance" on page
Refer to
1. Disconnect the power cord.
2. Remove the outer and inner covers. Refer to
3. Remove the three flat head screws (item
4. Remove the seven pan head screws (item
5. Slide the A20 power supply assembly out the rear of the analyzer.
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Perform the post-repair adjustments, verifications, and performance tests
7-32
Figure 7-14 for this procedure.
page 7-8.
bracket.
panel.
that pertain to this removal procedure. Refer to
"Keysight
2-7.
"Removing the Covers" on

) from the power supply

) from the power supply rear
Table 7-2 on page
Keysight N5244B/45B Service Guide
7-93.