User Manual

E-144
5. Perform the following key operation:
(1) O19(CLR)
(2) “All:EXE” (fc), then E
(3) E(Yes)
(4) A
• Make sure you perform the above key operation. Do
not skip it.
• Replacing the battery initializes the calculator, including
the custom shortcut keys and function shortcut keys.
See “Initializing the Calculator” (page E-3) for more
information.
FC-100V
This calculator is powered by a single AAA-size battery
(R03 (UM-4)).
A Replacing the Battery
The battery needs to be replaced after a specific number
of years. Also, replace the battery immediately after display
figures become dim.
A low battery is indicated by a dim display, even if contrast
is adjusted, or by failure of figures to appear on the display
immediately after you turn on the calculator. If this happens,
replace the battery with a new one.
Important!
• Removing the battery will cause all of the calculator’s
memory contents to be deleted.