Keysight Technologies N5244/5B Service Manual page 631

Repair and Replacement Procedures
Removing and Replacing the Lithium Battery
Removing and Replacing the Lithium Battery
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
Refer to
1. Disconnect the power cord.
2. Remove the solid state drive (SSD) from the A21 CPU board. Refer to
3. Remove 22 top cover attachment screws (item
4. Remove the top cover from the A21 CPU board assembly.
5. Remove the battery from the battery holder by lifting it at the open end of
6. DO NOT THROW AWAY THE BATTERY. COLLECT IT AS SMALL CHEMICAL
Replacement Procedure
1. Reverse the order of the removal procedure following all instructions
2. Perform the post-repair adjustments, verifications, and performance tests
Keysight N5244B/45B Service Guide
Figure 7-46 for this procedure.
"Removing and Replacing the A55 Solid State Drive (SSD)" on page
the holder and then sliding it from under the clip (item
WASTE. Refer to "Lithium Battery Disposal" on page 1-12
information on battery disposal.
included with the new battery.
that pertain to this removal procedure. Refer to
7-64.

).

).
for additional
Table 7-2 on page 7-93.
7-91