E-11
2. Making sure that you do not accidently press the M key, slide the case onto the calculator 
and then turn it over.
3. Remove the battery cover from the calculator by 
pulling with your finger at the point marked .
4. Remove the four old batteries.
5. Load a new set of four batteries, making sure that 
their positive (+) and negative (–) ends are facing in 
the proper directions.
6. Replace the battery cover.
7. Turn the calculator front side up and slide off its 
case. Next, press M to turn on power.
• If the figures on the display appear too light and hard to see after you turn on power, adjust 
the contrast. 
I About the Auto Power Off Function
Calculator power turns off automatically if you do not perform any operation within the Auto 
Power Off trigger time you specify. You can specify either 10 minutes or 60 minutes as the 
trigger time (see “Power Properties Settings” on page 12-1). To restore power, press M.
fx-9860GII SD
fx-9860GII
fx-9860G AU PLUS
fx-9750GII
fx-7400GII
fx-9860GII SD
fx-9860GII
fx-9860G AU PLUS
fx-9750GII
fx-7400GII