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System Maintenance
Section 6-11
Select “I/O Check”.
Select “Device Check”.
Select “Battery”.
“The voltage is within the normal range.” or
“The voltage is lowered.” is displayed.
After confirming the result of the check, press “Quit”. The NT31/NT31C returns to
the “DEVICE CHECK MENU” screen.
Note When “The voltage is lowered” is displayed, replace the built-in battery immediate-
ly. For details on the replacement method, refer to 11-3-1 “Replacing the Battery”
(page 634).
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