Anritsu VectorStar MN469 C Series, Maintenance Manual, Page: 59 / 78

Chapter 5 — Component Replacement 5-12 High Band SPDT Switch Assembly
MN469xC Series Multiport Test Set MM PN: 10410-00730 Rev. D 5-15
5-12 High Band SPDT Switch Assembly
Assemblies: 70241<R>/70242<R> or 3-70241<R>/3-70242<R>
This section provides a procedure for removing and replacing the High Band SPDT Switch Assembly, A12,
A13, A18 and A19. Refer to
Figure 5-2 on page 5-3 for module locations.
A12 Replacement
1. Remove the top cover from the test set as instructed in Section 5-3 .
2. Replace the Switch Assembly as illustrated in Figure 5-14 .
Note Use Anritsu 01-201 Torque Wrench to tighten all RF connectors when installing the module.
1. Disconnect the RF cables connected at J2 and J3 of the A18 assembly to provide clearance and then perform
the following:
Disconnect and remove the RF cable between J2 of A12 and J2 of A10.
Disconnect and remove the RF cable between J3 of A12 and J2 of A8.
2. Remove the Switch Control Board from A12 per the procedure in Section 5-11 , and then remove the three (3)
support standoffs.
3. Remove the four A12 switch mounting screws from the bracket.
4. Disconnect the semirigid cable from J1 of the switch and remove the switch from the chassis.
5. Installation is the reverse of removal.
Figure 5-14. A12 High Band SPDT Switch Assembly
1 2
3 4
A18
A12
A12
A12
J2 J3 J2 J2
A8 A10
J1
J1
A12