Installation Note N5245-90012 23
Installation Procedure for the Upgrade
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.
3. Follow the two instructions shown in
. New parts are listed in
of this document.
Figure 6
A33 - A36 Test Port Coupler Assembly
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.