Sharp DV-NC55U Operation Manual page 4

IMPORTANT SAFEGUARDS AND PRECAUTIONS
7. Never open, remove covers or make any adjustments not described in this manual.
Attempting to do so could expose you to dangerous electrical shock or other hazards.
It may also cause serious damage to this Unit.
8. Keep liquids and foreign objects away from this Unit. Never operate this Unit if any
liquid or foreign object has entered it. Short circuits could result in and possibly cause
fire or shock hazards. Unplug this Unit immediately and have it inspected by a
qualified service technician.
OUTDOOR ANTENNA GROUNDING AND POWER LINES
1. If an outside antenna or cable system is connected to the Unit, be sure the antenna or cable system is
grounded, thus providing some protection against voltage surges and built-up static charges. Article 810 of
the National Electrical Code, ANSI/NFPA No.70, provides information regarding 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 diagram below.
NEC—N
ATIONAL
2. 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 come into contact with power lines or circuits. When installing an outside
antenna system, extreme care should be taken to keep from coming into contact with power lines or circuits;
contact with them might be fatal.
Service
1. Do not attempt to service this Unit yourself. Instead, unplug it and contact a qualified service technician. (See
CONSUMER LIMITED WARRANTY at the end of this manual.)
2. Be sure the service technician uses authorized replacement parts or their equivalents. Unauthorized parts
may cause fire, electrical shock, or other hazards.
3. Following any service or repair, be sure the service technician performs safety checks to certify that this Unit
is in safe operating order.
Copy Protection
This Unit supports Macrovision copy protection.
On DVD discs that include a copy protection code, if the contents of the DVD disc are copied using a VCR, the
copy protection code prevents the videotape copy from playing normally.
Apparatus Claims of U.S. Patent Nos. 4,631,603,
4,577,216, 4,819,098 and 4,907,093 licensed for
limited viewing uses only.
This product incorporates copyright protection technology that is protected by method claims of certain U.S.
patents and other intellectual property rights owned by Macrovision Corporation and other rights owners.
Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended
for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation.
Reverse engineering or disassembly is prohibited.
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ANTENNA LEAD-IN
WIRE
GROUND CLAMP
ELECTRIC
SERVICE
EQUIPMENT
E C
LECTRICAL ODE
EXAMPLE OF ANTENNA
GROUNDING AS PER NATIONAL
ELECTRICAL CODE
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)
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