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Description of this Upgrade
Step 7. Reinstall Some Bottom Cables
Step 7. Reinstall Some Bottom Cables
Carefully turn your instrument over so the bottom side is up.
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.
To avoid damage when connecting and torquing the bias T combiner
semirigid cables, always use a wrench to hold the bias T combiner
connectors.
Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections
except the front and rear panel bulkhead connectors. On these, use a
9 mm nutsetter or open end torque wrench set to 21 in-lb.
Install the New Test Set Semi-rigid Cables
To see an image showing the location of these cables, refer to
page
Configuration [for your option]" in the PDF Service Guide. New parts are listed
in
Install the following new cable:
Refer to
—
Installation Note N5225-90142
22. See also the Chapter 6 bookmarks "Bottom RF Cables, 2-port
Table on page
8.
Figure 6 on page
①
—W51(N5224/5B & N5244/5B)/W61 (N5227B & N5247B)
(N5240-20125) A15 13.5 GHz (LO) DD synthesizer assembly J5 to A21
HMA26.5 RF IN (The top-side end will be connected in
*NEW* A15 Direct Digital Synthesizer (DDS) Assembly" on page
22.
Figure 6 on
"Step 9. Install
23.)
21
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