Sega WORLD SERIES '99 - Manual (Page 16)

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3 - 9 BACK UP DATA CLEAR
Clears the contents of BOOKKEEPING.
When clearing bring-> to YES and when not clearing, to NO, by using the SERVICE SW and then push the TEST
button.
When clearing has been finished, COMPLETED will be dislayed.
Pressing the TEST button will have the MENU return to the screen.
BACK UP DATA CLEAR
YES (CLEAR)
->NO (CANCEL)
SELECT WITH SERVICE BUTTON AND
PRESS TEST BUTTON TO EXIT