IBM i 830, Repair Manual

Page: 683 / 1000

b. Insert the new keystick into the panel. The control panel will display 0000
5553.
c.
Locate the push button that is on the back side of the control panel. It is
located directly behind the keystick.
d. Depress the push button for 3-4 seconds.
e. The control panel will return to a function 01 display.
17. After exchanging an item, go to “Verifying the Repair” on page 920.
This ends the procedure.
Models 830/SB2 with FC 9074 – Power Distribution Backplane (PB1)
1. You must remove both disk unit backplanes DB1 and DB2 before continuing
with this procedure. Perform “Models 830/SB2 – Device Boards (DB1 and
DB2)” on page 664 for each backplane.
After you have removed
both disk unit backplanes DB1 and DB2 return here
and continue with the next step of this procedure.
2. Remove the rear cover (see “Models 830/SB2 with FC 9074 – Covers” on
page 663).
3. Remove the PCI drawer (see “Models 830/SB2 with FC 9074 – Tower Card
(CB1)” on page 675).
4. Remove the AC Box (see “Models 830/SB2 with FC 9074 (With Single Line
Cord) – AC Input/Charger (A01)” on page 653).
5. Remove the three power supplies (see “FC 9074, FC 9079, FC 5074/5079 –
Power Supply – P01, P02, and P03” on page 632).
6.
From the front of the tower, reach through the frame and remove the cables
from the backside of the power distribution backplane and note their locations.
7. From the rear of the tower, remove the mounting screws that hold the power
distribution backplane to the frame.
Remove and Replace Procedures
Chapter 4. Removal and Installation Procedures
669