EC-364  (650-0833)          Replacing Batteries        Faxback Doc. # 3517

Secret Sender uses two types of batteries.

    Main Batteries

    Two AAA batteries (Radio Shack Cat. No. 23-555) are used for the main
    power supply.  Secret Sender will not operate at all if the main
    batteries are not installed.

    Back-up Battery

    One CR2032 lithium battery (Radio Shack Cat. No. 23-162) supplies
    power to the memory and protects its contents.

    Memory contents are lost when both the main batteries and the back-up
    battery are removed.  Be sure to always leave the main batteries or
    back-up battery in place to protect memory contents.  If, however, you
    remove the main batteries for any time, memory retention will depend
    entirely on the conditions of the back-up battery.  Over a long period
    of time with just the back-up battery in place, memory contents are
    likely to be damaged.  If memory seems corrupted, clear it using the
    RESET procedure described on page 14.

Important!  Incorrect use of batteries can cause them to burst or leak
possibly damaging the interior of Secret Sender.  Note the following
precautions:

    Be sure that the positive (+) and negative (-) poles of the batteries
    are facing in the proper direction.

    Never mix batteries of different types.

    Never leave dead batteries in the battery compartments.

    Remove the batteries if you expect to not use Secret Sender for a long
    period of time.

    Replace the main batteries at least every two years, and the back-up
    battery every three years.  Batteries should be replaced no matter how
    much you use the unit during that time.

Warning!  Never try to recharge the batteries supplied with Secret Sender.

          Do not expose batteries to direct heat, short-circuit them, or
          try to take them apart.

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

To replace the main batteries

1.  Press OFF.

2.  Use a Phillips screwdriver to loosen the screw of the large battery
    compartment cover on the back of the unit, and slide the battery
    compartment cover in the direction noted by the arrow.

3.  Remove the old batteries.

    Note:  Dispose of old batteries promptly and properly.
 
4.  Making sure that the positive (+) and negative (-) ends of the
    batteries are facing correctly.  Load two new batteries into the
    compartment according to the polarity symbols marked inside the
    compartment.

    Replace both old batteries with two fresh ones.

5.  Insert the tabs on the bottom of the battery compartment cover into
    the slots of the battery compartment and carefully close the cover.
    Secure the cover in place with the screw.

To replace the back-up battery

1.  Press OFF.

2.  Remove the sticker over the back-up battery.

3.  Use a Phillips screwdriver to loosen the screw of the small battery
    compartment cover on the back of the unit, and remove the back-up
    battery compartment cover.

4.  Insert a thin, pointed, non-metallic object into (A) and remove the
    old battery.

    Note:  Dispose of old batteries promptly and properly.

5.  Wipe off a new battery with a soft cloth.  Then load it into the
    compartment making sure that the positive (+) side is facing up (so
    you can see it.)

6.  Replace the cover.  Insert the tabs on the bottom of the battery
    compartment cover into the slots of the battery compartment and
    carefully close the cover.  Secure the cover in place with the screw.

Auto Power Off Function

This function automatically switches off the power if you do not touch any
of the unit's keys for about six minutes.  To restore power, press AC/ON.

If you do not touch any keys for six minutes while entering or editing
data, setting the current time, or setting an alarm time, power cuts off
without storing the data.

If you have set an alarm to go off and the unit has been shut off by auto
power off, the alarm will sound anyway at its appropriate time.

(br/all-12/09/94)