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Procedure 16. A21 OCXO
Replacement
1. Connect W49, coax 82, to the OCXO and position the OCXO in the spectrum analyzer.
Dress W50, orange cable, next to W49 through the opening in the deck.
2. Secure the OCXO to the spectrum analyzer main deck using three screws (1). See
Figure 4-28.
3. Connect W50 to A15J306. Install tie wraps to hold W49 and W50 together.
4. Fold the Al4 and Al5 assemblies into the spectrum analyzer as described in “Procedure 9.
Al4 and Al5 Assemblies Removal.”
5. Perform the rear frame assembly replacement procedure described in “Procedure 13. Rear
Frame/Rear Dress Panel Removal.”
Assembly Replacement 4-57