Keysight Technologies N5244/5B Service Manual page 586

Repair and Replacement Procedures
Removing and Replacing the A26 Splitter
Removing and Replacing the A26 Splitter
Tools Required
— T-8 TORX driver (set to 6 in-lb)
— T-20 TORX driver (set to 21 in-lb)
— 5/16 inch open-end torque wrench (set to 10 in-lb)
— ESD grounding wrist strap
Removal Procedure
Refer to
Be careful not to damage the center pins of the semirigid cables. Some
flexing of the cables is necessary to remove the assembly. However, do not
over-bend the semirigid cables.
1. Disconnect the power cord.
2. Remove the outer cover. Refer to
3. Position the analyzer bottom side up.
4. Disconnect cable W52 at the A26 splitter connection.
5. Remove cable W53 from between the A26 splitter and the A27 mixer brick.
6. Remove cable W54 from between the A26 splitter and the A28 mixer brick.
7. Remove two screws (item
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Perform the post-repair adjustments, verifications, and performance tests
1. The A26 splitter (5067-4086) and N5245-20013, N5245-20022, N5245-20023, N5245-20101, and
N5245-20150 cables are only used with a legacy HMA26.5 p/n: 5087-7765. If you are unclear which
HMA26.5 assembly your PNA has installed, refer to Chapter 7 and
on A26 splitter and cabling, refer to your option-model in Chapter 6
Prefixes <6021" on page 6-34
7-46
Figure 7-21 for this procedure.
of the analyzer.
Torque all RF cable connections to 10 in-lbs.
that pertain to this removal procedure. Refer to
and "4-Port Configuration, Serial Number Prefix <6021" on page
1
"Removing the Covers" on page

) from the A26 splitter and lift the splitter out
Table 7-2 on page
Figure 7-20 on page 7-45
"2-Port Configurations, Serial Number
Keysight N5244B/45B Service Guide
7-8.
7-93.
and for details
6-129.