PREPARATION
INSTALLING BATTERIES
Your System 931 requires four AAA batteries (not sup- plied) for power. For the longest operation and best performance, we recommend alkaline batteries, avail- able at your local RadioShack store.
Cautions:
•Always use fresh batteries of the required size and recommended type.
•Do not mix old and new batteries, different types of batteries (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 button on the system after you remove the old batteries. Doing so could erase all stored infor- mation.
10