28 Installation Note N5222-90118
Installation Procedure for the Upgrade
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Step 20. Install the A13 13.5 GHz (Source 2) Synthesizer Board and
Cables
1. Install new gray cable W67 (N5242-60030) to connector J5 of the new
A13 (source 2) synthesizer board (N5240-60074). The loose end of the
cable will be connected on the A10 frequency reference board (J7) after
the A13 board has been installed in the analyzer.
2. Install the A13 board into slot 2 in the motherboard. Secure the board into
the chassis using two screws (0515-0380). To see an image showing the
location of the A13 board in the motherboard, click the Chapter 6
bookmark “Top Assemblies, All Options” in the PDF Service Guide
1
.
3. Connect cable W2 (N5222-20090) between the A8 source 2 board and the
A13 (source 2) synthesizer board. Tighten the cable connectors to 10
in-lbs using a 5/16-in torque wrench.
4. Connect the loose end of new gray flex cable W67 (N5242-60030) on the
A10 frequency reference board (J7). (The other end of this cable was
previously connected to J5 of the A13 (source 2) synthesizer board.)
Step 21. Install the Test Set Cables
Flexible Cables Required for Upgrading to an Option 401 PNA
Install the following gray flexible cables in the order listed. To see images
showing the location of these cables, click either of the Chapter 6 bookmarks
“Bottom RF Cables, 4-Port, Option 417” in the PDF Service Guide
. New parts
are listed in
.
— W60 (N5242-60013) A20 IF multiplexer board P203 to A12 SPAM board J2
— W62 (N5242-60015) A20 IF multiplexer board P603 to A12 SPAM board J5
If the following cables were not connected when the new mixer brick assembly
was installed earlier, connect them now:
— W52 (N5242-60021) A23 mixer brick (R1) to A20 IF multiplexer (P411)
— W53 (N5242-60022) A23 mixer brick (R2) to A20 IF multiplexer (P412)
1. See
“Downloading the Online PNA Service Guide” on page 6
.
Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections
except the front and rear panel bulkhead connectors. Torque these
connections to 21 in-lb.
Follow instructions carefully when making cable connections, especially
wire harness connections. Incorrect connections can destroy components,
resulting in additional customer costs.