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40 Installation Note N5247-90106
Installation Procedure for the Upgrade
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Step 39. Install Some Bottom-Side (Test Set) Cables
Flexible Cables Required for Upgrading to an Option 419 PNA
Install the following gray flexible cables in the order listed. 70 GHz cables were
connected to the 70 GHz doublers earlier in this procedure, but the other end
of these cables still requires a connection. To see images showing the location
of these cables, click either of the Chapter 6 bookmarks “Bottom RF Cables,
4-Port, Option 419” in the PDF Service Guide
. New parts are listed in
— W91 (reuse) (N5247-60006) A60 port 1 70 GHz doubler (J2) to A7 40 GHz
doubler (J401)
— W92 (reuse) (N5247-60007) A60 port 1 70 GHz doubler (J4) to A7 40 GHz
doubler (J500)
— W97 (reuse) (N5247-60008) A63 port 2 70 GHz doubler (J2) to A8 40 GHz
doubler (J401)
— W98 (reuse) (N5247-60009) A63 port 2 70 GHz doubler (J4) to A8 40 GHz
doubler (J500)
Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections
except the front and rear panel cable connectors. Torque these
connections to 21 in-lb.
Be careful not to damage the center pins of the semirigid cables. Some
flexing of the cables may be necessary but do not over-bend them.
Follow instructions carefully when making cable connections, especially
wire harness connections. Incorrect connections can destroy components,
resulting in additional customer costs.