EC-443 (650-0597) Maintenance Faxback Doc. # 7536 Your EC-443 Solar Powered Calculator is an example of superior design and craftsmanship. The following suggestions will help you care for the calculator so you can enjoy it for years. Keep the calculator dry. If it gets wet, wipe it dry immediately. Liquids can contain minerals that can corrode the electronic circuits. Use and store the calculator only in normal temperature environments. Temperature extremes can shorten the life of electronic devices, and distort or melt plastic parts. Handle the calculator gently and carefully. Dropping it can damage circuit boards and cases and can cause the calculator to work improperly. Keep the calculator away from dust and dirt, which can cause premature wear of parts. Wipe the calculator with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the calculator. Modifying or tampering with the calculator's internal components can cause a malfunction and might invalidate its warranty. If your calculator is not performing as it should, take it to your local Radio Shack store for assistance. (br/all-9/15/94)