10
PREPARATION
INSTALLING BATTERIES
You need four AAA batteries (not supplied) to protect the sys-
tem’s memory during a power failure. For the longest operation
and best performance, we recommend alkaline batteries, such
as RadioShack Cat. No. 23-558.
Cautions:
• Always use fresh batteries of the required size and rec-
ommended type.
• Do not mix old and new batteries, different types of batter-
ies (standard, alkaline, or rechargeable), or rechargeable
batteries of different capacities.
Follow these steps to install batteries.
Notes:
• When you replace the batteries, do not press any buttons
on the system after you remove the old batteries. Doing
so could erase all stored information.
• When replacing the batteries, have fresh ones on hand
before you begin. If you do not install the new batteries
within about 2 minutes after removing the old ones, you
will lose all the information stored in the system.
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