Spa Assembly Replacement - Anritsu S412E Maintenance Manual

Chapter 7 — Assembly Replacement
7-4

SPA Assembly Replacement

This section describes the removal of the SPA Assembly board.
1. Open the case as described in
2. Remove the PCB Assembly from the front panel as described in
Replacement".
3. Remove the castle nuts from the External Reference connector and the External Trigger connector
(Figure 7-5).
4. Remove the Main/VNA board ribbon connector.
5. Remove the 2 MCX connectors between the SPA board and the DSP board.
6. Remove the 6 screws retaining the SPA board.
7. Slide the SPA board out of the top panel.
8. Installation is the reverse of removal.
Remove
3 screws
Figure 7-5. Removing the SPA Assembly
S412E MM
Section 7-2 "Opening the S412E
Remove Castle Nuts
SPA Board
PN: 10580-00324 Rev. N
7-4 SPA Assembly Replacement
Case".
Section 7-3 "PCB Assembly
Disconnect
MCX Cables
Disconnect
Ribbon Cable
DSP Board
Remove
3 Screws
7-5