EC-2035 Fraction Calculator
(650-0529)                 Power Supply               Faxback Doc. # 33491

Power Supply

The Two-Way Power System of this calculator uses a solar cell, in addition
to one LR44 button type battery.  Unlike calculators equipped with a solar
cell only, you can use this calculator under virtually any lighting
conditions, as long as there is enough light for you to read the display.

Battery Replacement

If the display becomes dim and difficult to read or if nothing appears on
the display when you press on/AC (especially when lighting is dim), you
probably need to replace the button type battery.  We recommend an alkaline
battery, such as Radio Shack Cat. No. 23-115.

To replace the battery

1.  Remove the screws on the back of the calculator and remove the back
    cover.

2.  Remove the old battery.

3.  Wipe the surfaces of a new battery with a dry cloth, and load it into
    the calculator making sure the positive + side is facing up
    (so you can see it).

4.  Taking care to make sure that the tabs align properly with their
    slots, replace the back cover.  Secure the cover in place with the
    screws.

5.  Press On/[AC] to switch power on.

6.  Press [MC] to clear the independent memory.

Battery Precautions

Incorrectly using batteries can cause them to burst or leak, possibly
damaging the interior of the unit.  Note the following precautions:

    Be sure that the positive + side of the battery is facing up
    (so you can see it) when you install it in the unit.

    Never leave a dead battery in the battery compartment.  A dead battery
    can leak and damage the unit if left in the battery compartment for
    long periods.

    Remove the battery if you do not plan to use the unit for long
    periods.

    In order to avoid damage caused by leaking battery fluid, be sure to
    replace the battery at least once every 3 years.

WARNING!  Never try to recharge the battery supplied with the unit.

          Never expose batteries to direct flame or intense heat.

          Keep batteries out of the reach of small children.  If swallowed,
          consult with a physician immediately.

The unit may spend some time being shipped or in storage before you
purchase it.  This means that the life of the battery installed in the
unit when you purchase it probably will not supply power for the normal
battery life (about 3 years).

Auto Power Off Function

This calculator is not equipped with an OFF switch. Instead, it switches
power off automatically about six minutes after the last key operation is
performed.  To restore power, press ON/[AC].  Even if the Auto Power Off
function operates to clear memory, the contents of the independent memory
are not cleared.

(BR/EB 6/6/96)