CASIO SF3990
Manual de Usuario

3. Slide the battery switch to the �REPLACE 1� setting. Insert a thin, pointed object into (A) and remove the old battery.

(A)

Caution Be sure to remove only one battery at a time. Otherwise, you will lose all data stored in memory. 4. Replace the old battery with a new one, making sure that the positive (+) side of the new battery is facing up (so you can see it). 5. Slide the battery switch to the �REPLACE 2� setting and repeat step 4 for the other battery. � Be sure to load two new CR2032 batteries at the same time . Never mix an old battery with a new one. 6. Slide the battery switch to the �LOCK� setting. 7. Replace the battery compartment cover.

Battery Precautions
� Keep + side of each battery facing up (so you can see it). � Keep batteries out of the reach of small children. If swallowed, consult with a physician immediately. The batteries that come with this unit discharge slightly during shipment and storage. Because of this, they may require replacement sooner than the normal expected battery life.

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