CARE AND MAINTENANCE
Your RadioShack System 420 Call Waiting Caller ID is an ex- ample of superior design and craftsmanship. The following suggestions will help you care for your system so your can en- joy it for years.
•Keep the system dry. If it gets wet, wipe it dry immedi- ately. Liquids can contain minerals that corrode the elec- tronic circuits.
•Use and store the system only in normal temperature environments. Temperature extremes can shorten the life of electronic devices, damage batteries, and distort or melt plastic parts.
•Handle the system gently and carefully. Dropping it can damage circuit boards and cases and cause the system to work improperly.
•Keep the system away from dust and dirt, which can cause premature wear of parts.
•Wipe the system with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning sol- vents, or strong detergents to clean your system.
Modifying or tampering with the system’s internal components can cause a malfunction and might invalidate its warranty and void your FCC authorization to operate it. If your system is not performing as it should, take it to your local RadioShack store for assistance. If the trouble is affecting the phone lines, the phone company might ask you to disconnect your system until you have resolved the problem.
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