LIGHTNING, STORM, or NOT IN USE Unplug the product from
the wall outlet and disconnect the aerial during a lightning storm,
when left unattended and unused for long periods of time, or during
maintenance of electrical installation .This will prevent damage to
the unit due to lightning and power-line surges.
Foreign objects. Never push foreign object through the unit's
ventilation slots as they could make contact with components of
dangerous voltages or cause component damage.
Component replacement. When replacing components, ensure
that the replacements meet the unit manufacturers specifications.