EC-4042  (650-0821)             Battery                Faxback Doc. # 3744

Battery Replacement

Note:  Your calculator cannot hold data in memory when the batteries are
       removed or become discharged.

The calculator uses two type 357 button-cell batteries.  Radio Shack
Catalog Number 23-115 provides up to 1000 hours of operation.  For up
to 2500 hours of operation, use Catalog Number 23-105.

1.  Turn the calculator off and place it face down on a table or desk.

2.  Using a small Phillips screwdriver, remove the screws from the back
    case.

3.  Lift the bottom edge of the back case, and then lift off the whole
    back case.

4.  Remove the discharged batteries and install the new ones positive side
    up, shown in the diagram inside the battery compartment.

    Caution:  Avoid contact with the other calculator compartment while
              changing the batteries.

5.  Replace the back case, top edge first, and then replace the screws.

6.  Press the ON/C key twice.  The display shows 0. and DEG, and the
    calculator is ready to be used.

Caution:  Dispose of old batteries properly.  Do not incinerate the
          batteries properly.  Do not incinerate the batteries or leave
          them where a child can find them.

(LB/all-12/21/94)