Installation Note N5245-90012 21
Installation Procedure for the Upgrade
Step 11.Install the A30 and A31 Reference Coupler Assemblies
Install the A30 and A31 reference coupler assemblies. For instructions, click
the Chapter 7 bookmark, “Removing and Replacing the A29-A32 Reference
Couplers and Reference Coupler Mounting Brackets” in the PDF Service
Guide
. New parts are listed in
of this document.
Step 12.Assemble the A47 and A48 Receiver Attenuator Assemblies
Assemble the A47 and A48 receiver attenuator assemblies. For instructions,
click the Chapter 7 bookmark, “Removing and Replacing the A38-A41 Source
Attenuators and the A46-A49 Receiver Attenuators” in the PDF Service Guide
New parts are listed in
of this document.
Step 13.Install the A47 and A48 Receiver Attenuator Assemblies
Install the A47 and A48 receiver attenuator assemblies. For instructions, click
the Chapter 7 bookmark, “Removing and Replacing the A38-A41 Source
Attenuators and the A46-A49 Receiver Attenuators” in the PDF Service Guide
New parts are listed in
of this document.
Step 14.Assemble the A39 and A40 Source Attenuator Assemblies
Assemble the A39 and A40 source attenuator assemblies. For instructions,
click the Chapter 7 bookmark, “Removing and Replacing the A38-A41 Source
Attenuators and the A46-A49 Receiver Attenuators” in the PDF Service Guide
New parts are listed in
of this document.
Step 15.Install the A39 and A40 Source Attenuator Assemblies
Install the A39 and A40 source attenuator assemblies. For instructions, click
the Chapter 7 bookmark, “Removing and Replacing the A38-A41 Source
Attenuators and the A46-A49 Receiver Attenuators” in the PDF Service Guide
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