22 Installation Note N5245-90113
Description of the Upgrade
Installation Procedure for the Upgrade
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Figure 5
Bias Tee Brackets
Step 17. Install the A43 and A44 Bias Tees
Install the A43 and A44 bias tees. For instructions, click the Chapter 7
bookmark, “Removing and Replacing the A42-A45 Bias Tees” in the PDF
Service Guide
1
. New parts are listed in
Step 18. Assemble the A33 - A36 Test Port Coupler Assemblies
1.
Remove the A33 test port 1 coupler and A36 test port 2 coupler from the
PNA. For instructions, click the Chapter 7 bookmark, “Removing and
Replacing the A33 - A36 Test Port Couplers” in the PDF Service Guide
2.
Using pliers, remove the adhesive bumper on the A33 test port 1 coupler
and on the A36 test port 2 coupler.
1. See
“Downloading the Online PNA Service Guide” on page 6
Orient the port 3 bias tee so that the capacitor faces the capacitor on the
port 1 bias tee. Likewise, port 2 and port 4 bias tee capacitors should face
each other. Also, fasten each bias tee’s red wire lug nut using the screw on
the side of the bias tee without a capacitor.
