Keysight N5224B, Service Manual, Page: 565 / 614

Keysight N5224B/25B Service Guide 7-59
Repair and Replacement Procedures
Removing and Replacing the A70 or A75 Low Frequency Extension (LFE) Board
Removing and Replacing the A70 or A75 Low Frequency Extension
(LFE) Board
Tools Required
— T-10 TORX driver (torque to 9 in-lb or 1.02 N.m)
— T-20 TORX driver (torque to 21 in-lb or 2.38 N.m)
— 5/16 inch open-end torque wrench (torque to 10 in-lb or 1.13 N.m)
— ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-28 on page 7-60 , Figure 7-32 on page 7-64 , and Figure 7-29
on page 7-61 for this procedure.
1. Disconnect the power cord.
2. Remove the outer cover. Refer to “Removing the Covers” on page 7-7 .
3. Position the analyzer bottom side up.
4. Remove the A23 test set motherboard. Refer to “Removing and Replacing
the A23 Test Set Motherboard” on page 7-33 .