32 Installation Note N5222-90133
Description of this Upgrade
Step 13. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables
-
Step 13. Install *NEW* and Reused Direct Digital Synthesis (DDS)
Assembly Cables
1.
Connect the following new cables in the order listed.
Refer to
—
①
—W41 (N5240-20122) A11 13.5 GHz (LO) DD synthesizer
assembly J5 to A21 HMA26.5 RF IN (One end was connected in
“Step 10. Reinstall Bottom Assemblies and Cables” on page 26
)
—
➁
—W1 (N5240-20121) A11 13.5 GHz (SRC 1) DD synthesizer
assembly J4 to A5 26.5 GHz source (1) board RF IN
—
➂
—W2 (N5240-20123) A11 13.5 GHz (SRC 2) DD synthesizer
assembly J6 to A8 26.5 GHz source (2) board RF IN
Torque all cables to 10-lbs.
Figure 16
Install New DDS Assembly Top Cables (N5240-20121, N5240-20122, and
N5240-20123 (i.e., N5240-20127 Applies to Option 422/423 Only – See also,
))
Torque all
cables to
10 in-lbs.
