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20 ReplacementPartsWhenreplacementpartsarerequired.
besuretheservicetechnicianhasusedreplacementparts
specifiedbythemanulhcturerorh:nethesame
characteristicsastheoriginalpart.Unauthorized
substitutionsmayresultinfire.electricshock,orother
hazards.
21 Sali:tyCheckUponcompletionofanyserviceorrepairsto
thisproduct,asktheservicetechniciantoperformsafety
checkstodeterminethattheproductisinproperoperafing
condition.
22 WallorCeilingMountingTheunitshouldbemountedtoa
wallorceilingonlyasrecommendedbythemanufacturer.
23 HeatTheproductshouldbesituatedawayfromheat
sourcessuchasradiators,heatregisters,stoves,orother
products(includingamplifiers)thatproduceheat.
24 OutdoorAntennaGroundingIfanoutsideantennaor
cablesystemisconnectedtotheproduct,besuretheantenna
orcablesystemisgroundedsoastoprovidesome
protectionagainstvoltagesurgesandbuilt-upstaticcharges.
Article810oftheNationalElectricalCode.ANSI/NFPA70.
providesinformationwithregardtopropergroundingofthe
mastandsupportingstructure,groundingoftheleadqnwire
toanantennadischargeunit.sizeofgroundingconductors.
locationofantennadischargeunit.connectiontogrounding
electrodes,andrequirementslk)rthegroundingelectrode.
EXAMPLE OF ANTENNA GROUNDING
j POWER SERVICEGROUNDING
ELECTRODESYSTEM
(NEC ART 250 PART H)
NEC NATIONAL ELECTRICAL(ODE
YAMAHA CORPORATION
Printed in Malaysia _c_ WG63450