Operation Manual

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 
Nomusicsignalonloudspeakers ● +12Vand/orGROUND(GND/-12V)and/or“Remote”linenot(properly)
andSTATUS-LEDonampisredoroff  connected
 ● Fuseonamplifierordistributorblown
 ● MainFuseoncarbatterysideblown
 ● Short-circuitonanyofthespeakeroutputs
 ● DCvoltageatspeakeroutputs
 ● Amplifieroverload
 ● Amplifieroverheated
Ahigh-pitchedbuzzingsound ● Badground(GND)conntactofamplifierorheadunit
in-ordecreasingwithenginespeed ● InsufficientlyshieldedRCAinterconnectsand/orbadRCAcablerouting
  (inductiveinterferenceofon-boardelectronics)

Cracklingsoundin-ordecreasing ● Insufficientinterferenceeliminationofignitioncircuitry
withenginespeed
Humming ● Signofgroundloop(s),i.e.multiplegroundconnectionsofthecaraudio
  installationorpartsthereof.
 ● Checkalsogroundconnectionsofallotheraudiocomponentsconncected




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A1350-495 Manual D+E+F.indd 33 07.09.2007 12:23:51 Uhr