Models 830/Sb2 With Fc 9074 - Power Distribution Backplane (Pb1) - IBM iSeries 270 Service Manual

a. Apply ac power.
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.
18. After exchanging an item, go to Verify the repair.
This ends the procedure.

Models 830/SB2 with FC 9074 - Power distribution backplane (PB1)

For use by authorized service providers.
Use this procedure to remove or replace the power distribution board - PB1 in an Models 830/SB2 with FC
9074.
To remove or replace the power distribution board - PB1:
1. You must remove both disk unit backplanes DB1 and DB2 before continuing with this procedure.
Perform "Model 830/SB2 - Device board (DB1 and DB2)" on page 59 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 58.)
3. Remove the PCI drawer. (See "Models 830/SB2 with FC 9074 - Tower card (CB1)" on page 72.)
4. Remove the AC Box. (See "Models 830/SB2 with FC 9074 (with single line cord) - AC input/charger
(A01)" on page 50.)
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Hardware (Remove and Replace; Part Locations and Listings)