Sharp EL-6790

2. Loosen the screw (counter clockwise)
and remove the battery holder cover on
the back of the unit.
3. Remove the memory backup battery seal.
4. Remove the used battery using a ball-
point pen or similar object.
* Do not use a mechanical pencil or sharp
pointed object.
9. Install a new battery with the positive side (4) facing up.
6. Replace the seal and the holder cover and secure the cover
with the screw.
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7. Press to turn the power on. If nothing appears on the
display, press the RESET switch and press again. If
nothing appears on the display again, replace the operating
- batteries.