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20. Servicing – Do not attempt to service this product yourself as
opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified service
personnel.
21. Damage Requiring Service – Unplug this product 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 product.
c. If the product has been exposed to rain or water.
d. If the product 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 product to its normal operation.
e. If the product has been dropped or damaged in any way, and
f. When the product exhibits a distinct change in performance – this
indicates a need for service.
22. Replacement Parts – When replacement parts are required, be
sure the service technician has used replacement parts specified
by the manufacturer or have the same characteristics as the
original part. Unauthorized substitutions may result in fire, electric
shock, or other hazards.
23. Safety Check – Upon completion of any service or repairs to this
product, ask the service technician to perform safety checks to
determine that the product is in proper operating condition.
24. Wall or Ceiling Mounting – The product should be mounted to a
wall or ceiling only as recommended by the manufacturer.
25. Heat – The product should be situated away from heat sources
such as radiators, heat registers, stoves, or other products
(including amplifiers) that produce heat.
FIGURE 1
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE, ANSI/NFPA 70
This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la Classe B est conforme à la norme
NMB-003 du Canada.
NEC - NATIONAL ELECTRICAL CODE
ANTENNA
LEAD IN
WIRE
GROUND
CLAMP
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
ELECTRIC
SERVICE
EQUIPMENT
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
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