Keysight Technologies N9010B EXA Installation Note page 27

2. Refer to Figure 18. To replace the top brace (1), place it in the correct position and attach
using the screws included in the kit. There are two additional screws (0515-1946) (5) that are
required to attach the top brace to either the BBIQ Main board, or Wideband Analog IF and
Wideband Digital IF boards, if installed. Torque to 9 inch-pounds.
Figure 18 Top Brace Replacement
3. Attach the top brace to the new A15 Front End Control assembly using an additional screw
(0515-1946) (6) included in the kit.
4. Lay the rear panel on the table with the silk-screened side facing up and the text right-side up.
Along the right side of the rear panel are a number of holes with hole plugs. The top right hole
will be labeled either "AUX IF OUT".
5. Remove the hole plug from the AUX IF OUT hole.
6. Attach the W23 External Reference cable to the rear panel and secure with a lock washer
(2190-0102) and nut (0590-2332). Torque to 21 inch-pounds using a 9/16" nut driver.
7. Attach the W39 Aux IF Out cable to the rear panel and secure with the lock washer and nut
that came with the cable. Torque to 9 inch-pounds with a 5/16" nut driver.
Installation Note N9010-90066
Installation Procedure
27