And Any With Option B85, B1A, Or B1X) - Keysight n9020a Service Manual

Assembly Replacement Procedures
Reference Assembly
5. For instruments with Option B40, MPB, or DP2, refer to
Remove cables W5, W6, W14, W19, W23, W42, W43, and W25 (Option
BBA only) from the reference assembly (1). Use the 5/16 inch wrench
where necessary.
Figure 14-41 Reference Board Cables - Serial Prefix < MY/SG/US5233
with Options B40, MPB, DP2
6. The reference assembly can be removed from the chassis by leveraging up
on the ejector and pulling the board out on the other side.
Removal
(Serial Prefix ≥ MY/SG/US5233

and any with Option B85, B1A, or B1X)

1. Remove the instrument outer case. Refer to the Instrument Outer
Caseremoval procedure.
2. Remove the four flathead screws securing the top brace to the Reference
Assembly.
3. Remove the rear panel. Refer to the Rear Panelremoval procedure.
4. For standard instruments, refer to
W12, W14, W19, W20, W23, and W25 (Option BBA only) from the
reference assembly (1). Use the 5/16 inch wrench where necessary.
Figure 14-42. Remove cables W5, W6,
488
Figure 14-41.