Agilent Technologies 8590 Series Service Manual page 309

15.Carefully remove the RF assembly from the analyzer.
To disassemble or assemble the RF assembly, refer to the Foldouts at
NOTE
the end of
for the RF assembly and the tracking generator assembly.
Figure 7-5 RF Assembly Replacement
Chapter 7
Chapter 12. Chapter 11
Replacing Major Assemblies
provides cable location information
RF Assembly
309