5
SAFETY INFORMATION (cont.)
Risk of fire or scorching
Never place naked flame sources, such as lighted candles, on your
set-top.
Outdoor antenna grounding
Be sure that any outside antenna or cable system connected to
your set-top is grounded so as to provide some protection against
voltage surges and static charges that have built up. Article 810 of
the National Electrical Code (USA), ANSI/NFPA 70 provides
information with regard to proper grounding of the mast and
supporting structure, grounding of the lead-in wire to an antenna-
discharge unit, size of grounding conductors, location of antenna-
discharge unit, connection to grounding electrodes and
requirements for the grounding electrode. See the diagram below.
electric service equipment
power service grounding electrode system
(NEC ART 250, PART H)
grounding conductors
(NEC section 810-21)
antenna-discharge unit
(NEC section 810-20)
antenna lead-in wire
ground clamps
ground clamps
(Example
antenna
Power lines
You must not locate an outside antenna system in the vicinity of
overhead power lines or other electric light or power circuits, or where
it can fall into such power lines or circuits. When installing an outside
antenna system, you must take extreme care to avoid touching such
power lines or circuits, as contact with them might be fatal.
Transporting
Move the combination of set-top and cart with care. Quick stops,
excessive force and uneven surfaces may cause the combination of
set-top and cart to overturn. See also item 12 in the Important
Safety Instructions.
Ambient temperature
The operating temperature range of your set-top is 32-104°F. If the
ambient temperature around your set-top falls outside this range,
you must correct this in order for your set-top to work correctly
and safely. For example, if the temperature is too high, switch on
the air conditioning.
Replacement parts
When replacement parts are required, be sure that the service
technician has used replacement parts specified by the
manufacturer or that have the same characteristics as the original
part. Unauthorized substitutions may result in fire, electric shock or
other hazards. See also item 14 in the Important Safety Instructions.
