IBM i 830 Repair Manual page 706

Remove and Replace Procedures
16. After exchanging an item, go to "Verifying the Repair" on page 920.
17. On the FC 9079 tower or lower half of a FC 8079 tower, pull on the two side
18. Slide the panel partially out of the frame.
19. Disconnect the cables that are attached to backside of the control panel.
20. Remove the control panel from the frame.
21. Reverse the above procedure to install the panel.
22. Does the system that you are working on have a keystick lock?
23. Do you have the original system unit keys and are you reusing them?
24. Perform the following:
Figure 26. System Unit Control Panel with Keystick (NB1)
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iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
This ends the procedure.
fasteners to release the control panel assembly.
Note: When a control panel with keystick is replaced, discard the new
keysticks that come with the panel and reuse the original keysticks.
Yes No
↓
Go to step 25 on page 693 of this procedure.
No Yes
↓
Go to step 25 on page 693 of this procedure.
a. Apply AC power.