Keysight Technologies N9020B Installation Note page 25

Replace Front End Control Assembly
1. Refer to Figure 13. Remove the ribbon cables W16, W17, and W18 and the wire harness W22
from the Front End Control assembly (1).
2. If present, disconnect the flexible coax cables W36, W37, W38, and W39 from the Front End
Control assembly.
3. The Front End Control assembly can now be unplugged from the motherboard by leveraging
up on the ejector and lifting the board up on the other side.
Figure 13 Front End Control Assembly Removal
Installation Note N9020-90289
Refer to Analyzer Information at the beginning of the Installation Procedure. Do not perform this
procedure if the Front End Controller has a Hw Id of 41 or 75.
Installation Procedure
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