Installation Note N5222-90129 37
Installation Procedure for the Upgrade
Step 22. Install the Test Set Cables
Flexible Cables Required for Upgrading to an Option 417 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, S/N Prefix
≥
6021” in the PDF Service
Guide
1
. 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)
— W55 (N5242-60024) A24 mixer brick (D) to A20 IF multiplexer (P801)
— W56 (N5242-60019) A24 mixer brick (R4) to A20 IF multiplexer (P414)
— W57 (N5242-60020) A24 mixer brick (R3) to A20 IF multiplexer (P413)
— W58 (N5242-60023) A24 mixer brick (C) to A20 IF multiplexer (P601)
Follow instructions carefully when making cable connections, especially
wire harness connections. Incorrect connections can destroy components,
resulting in additional customer costs.
Be careful not to damage the center pins of the semi-rigid cables. Some
flexing of the cables may be necessary but do not over-bend them.
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.
Cables that are to be reinstalled are designated with “reuse.”
1. See
Содержание N5221BU-677
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