4
5
IMPORTANT SAFEGUARDS
, continued
12. Power Lines
An outside antenna system should not be located 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, extreme care
should be taken to keep from touching such power lines or circuits as contact with them might be fatal.
13. Overloading
Do not overload wall outlets and extension cords as this can result in a risk of fire or electric shock.
14. Object and Liquid Entry
Never push objects of any kind into this HDTV Receiver/Controller through openings as they may touch dangerous
voltage points or short-out parts that could result in fire or electric shock. Never spill liquid of any kind on or into the
HDTV Receiver/Controller.
15. Outdoor Antenna Grounding
If an outside antenna or cable system is connected to the HDTV Receiver, be
sure the antenna or cable system is grounded so as to provide some protection
against voltage surges and built-up static charges.
Section 810 of the National Electric Code, ANSI/NFPA No. 70-1984,
provides information with respect to proper grounding of the mast and sup-
porting 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.
16. Servicing
Do not attempt to service this HDTV Receiver/Controller yourself as opening or removing covers may expose you to
dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
17. Damage Requiring Service
Unplug the HDTV Receiver/Controller from the wall outlet and refer servicing to qualified service personnel under the
following conditions:
(a) When the power-supply cord or plug is damaged.
(b) If liquid has been spilled, or objects have fallen into the HDTV Receiver/Controller.
(c) If the HDTV Receiver/Controller has been exposed to rain or water.
(d) If the HDTV Receiver/Controller does not operate normally by following the operating instructions, adjust only
those controls that are covered by the operating instructions as an improper adjustment of other controls may result
in damage and will often require extensive work by a qualified technician to restore the HDTV Receiver/Controller
to its normal operation.
(e) If the HDTV Receiver/Controller has been dropped or the cabinet has been damaged.
(f) When the HDTV Receiver/Controller exhibits a distinct change in performance - this indicates a need for service.
18. Replacement Parts
When replacement parts are required, be sure the service technician has used replacement parts specified by the manu-
facturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric
shock or other hazards.
19. Safety Check
Upon completion of any service or repair to the HDTV Receiver/Controller, ask the service technician to perform safety
checks to determine that the HDTV Receiver/Controller is in safe operating condition.
20. Heat
The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (includ
ing amplifiers) that produce heat.
ANTENNA
LEAD IN WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING
CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
GROUND CLAMP
ELECTRIC
SERVICE
EQUIPMENT
NEC — NATIONAL ELECTRICAL CODE
EXAMPLE OF ANTENNA GROUNDING
