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Power Sources
This system is designed to operate on 8 “C” batteries, not included, or on normal
120V 60Hz AC house current. Attempting to operate this system on any other
power source may cause damage to the unit, and such damage is not covered by
your warranty.
AC Operation
Insert the small female plug of the AC power cord into the AC socket on the back
panel. The plug can only be inserted one way.
Insert the AC plug into your normal 120V 60Hz AC household outlet.
The display will show “AM 12:00”. The
display backlighting will turn on for a few
seconds and then turn off again.
NOTE: The system has a polarized AC plug with one wide blade and one
narrow blade. The plug will only fit into matching polarized AC outlets.
This is a safety feature to reduce the possibility
of electric shock. If the plug will not fit in your
AC outlet, you probably have an outdated non-
polarized outlet. You should have your outdated
outlet changed by a qualified, licensed
electrician. Do not file the wide blade on the
plug, or use an adapter to make the plug fit
into your outlet. This defeats the safety feature
and could expose you to electric shock.
AC Plug
AC Outlet
iP550_041907.p65 19/4/2007, 17:565