Sharp EL-506H

When the battery indicator is out, replace the batteries*.
1. Turn off the calculator.
2. Remove the screws from the back cover with a small screw driver (Fig. 1).
3. Replace the batteries. (Fig. 2) (+side must be up)
4. Hook the tabs of the back cover into the slits of the calculator proper. (Fig. 3)
5. Push the back cover in slightly while replacing the screws.
6. After the replacement, press the jOFFj , [ON/Cl , and |x-m| keys in this order to
clear the calculator.
When the batteries are correctly installed " . 0." will be displayed. (If the
display shows nothing or a meaningless symbol, or the keys become inoperative,
remove the batteries and install them again. Press the I OFF I , |on/c| and |x-m| keys
in this order and check the display again.)
Note: • Wipe off the surface of the new batteries with dry cloth and then
install the batteries as shown in Fig. 2.
• Always replace both of the batteries at the same time.