Procedure 16. A21 OCXO (Option 003)

Procedure 16. A21 OCXO (Option 003)

Removal

1.Remove the rear-frame assembly as described in Procedure 13, “Rear Frame/Rear Dress Panel Removal,” steps 1 through 22.

2.Place the analyzer on its right-side frame.

3.Fold out the Al4 and Al5 assemblies as described in Procedure 9, “Al4 and Al5 Assemblies Removal,” steps 3 and 4.

4.Remove the three screws (1) securing the OCXO to the main deck. See Figure 3-28.

5.Disconnect W49, coax 82, and W50 from the OCXO and remove the OCXO from the analyzer.

Figure 3-28. A21 OCXO Mounting Screws

Replacement

1.Connect W49, coax 82, and W50 to the OCXO and position the OCXO in the analyzer.

2.Secure the OCXO to the analyzer’s main deck using three screws (1). See Figure 3-28.

3.Fold the Al4 and Al5 assemblies into the analyzer as described in Procedure 9.

4.Perform the rear-frame assembly replacement procedure described in Procedure 13.

Assembly Replacement 3-51