Model 820 - Time Of Day (Tod) Battery - IBM iSeries 270 Service Manual

f. Locate the push button located on the back of the control panel, directly behind the keystick
position, and depress it for 3-4 seconds.
7. Select function 7 on the system control panel. Press Enter. (07** will be displayed)
8. Use the arrow keys to increment/decrement to sub-function A9 (07A9 will be displayed). Press Enter
(07A9 00 will be displayed).
9. Use the arrow keys to increment/decrement to the frame address, nn (nn is usually '01' for system
units) (07nn will be displayed). Press Enter (07nn 00 will be displayed).
10. Use the arrow keys to increment/decrement to a configuration ID to '93. (0793 will be displayed).
Press Enter (0793 00 will be displayed).
11. After a few seconds, the display will go blank and then the bring-up SRCs will be displayed. When
the panel returns to function 01, bring up is complete.
12. Power the system unit back on. See Power on/off the system and logical partitions.
13. Set the system time and date.
This ends the procedure.

Model 820 - Time of day (TOD) battery

For use by authorized service providers.
Use this procedure to remove or replace the time of day (TOD) battery in the Model 820.
CAUTION:
This product contains a lithium battery. To avoid possible explosion, do no burn, exchange, or
charge the battery. Discard the battery as instructed by local regulations for lithium batteries.
(RSFTC232)
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Hardware (Remove and Replace; Part Locations and Listings)