POWER Amplifiers - ASA Electronics

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POWER AmplifiersTroubleshootingProblem Possible Cause Corrective ActionAmplifier does not No power to +12V Check fuse(s)turn onterminalNo power to REMterminalCheck head unit fuse(s) andwiringBlown main fuse atbatteryReplace fuse and identifycause of failureBlown fuse at amplifier Replace fuse and identifycause of failureFaulty groundRe-ground main powerground to bare metalchassisVolume control toosensitiveInput level controladjusted too highRe-adjust the input level(refer to page 8)Distorted sound Input level controladjusted too highRe-adjust the input level(refer to page 8)Blows fuse(s) at amp Power wires connectedbackwardsReconnect power wiresproperlyInternal problem with Take unit for serviceampEngine noise /Alternator whineGround loop(s) Use good quality shieldedRCA cablesFaulty ground at amp Re-ground amp to cleanbare metal chassisFaulty ground at headunitRe-ground head unit toclean bare metal chassisInductive coupling Re-route RCA and/orspeaker wires away fromfactory harnessesInput level on amp settoo highRe-adjust input level (referto page 8)Thermal protectionactivatedAmplifier driving 2 ohmload for long durationsIf the amplifier “thermals”frequently while drivingsubwoofers, install fan tokeep amp cool.Short circuit Blown speakers Check all speakersprotection activated Speaker wire(s) shorting Check for faulty wiringto groundDefective crossover Faulty passive crossoverLow impedance Amp connected to Check speaker connectionsprotection activated improper loadAmp will not drive a 1ohm mono load, 2 ohmVerify that speakers areconnected properlyminimum in monoconfigurationSpeakers defective/ Check speakersblownFaulty passiveCheck crossoverscrossoversPoor bass response Speakers out of phase Check speaker polarity;reverse the connection toone speaker only if twosubwoofers are connectedto the amplifier.NOTE: If the protection light is activated with no speakers connected tothe amplifier, and all the power connections are correct, this wouldindicate an internal problem with the amplifier.12
POWER AmplifiersCEA Power OutputRMS Power Output @ 1% THD+N, 14.4VDCPower 400Power Output: 60 watts RMS X 2 channels into 4-ohms @ < 1% THD+NSignal to Noise Ratio: 100dBA below reference (Reference: 1 watt, 4-ohms)Additional Power Output:80 watts RMS X 2 channels into 2-ohms @ < 1% THD+N160 watts RMS X 1 channels (Bridged Mono) into 4-ohms @ < 1% THD+NFrequency Response: 10Hz to 60 kHz, -3dB (Reference: 1 watt)Dimensions: L9.5" x H2.5" x W9.0"Power 760Power Output: 60 watts RMS X 4 channels into 4-ohms @ < 1% THD+NSignal to Noise Ratio: 100dBA below reference (Reference: 1 watt, 4-ohms)Additional Power Output:80 watts RMS X 4 channels into 2-ohms @ < 1% THD+N155 watts RMS X 2 channels (Bridged Stereo) into 4-ohms @ < 1% THD+NFrequency Response: 10Hz to 60 kHz, -3dB (Reference: 1 watt)Dimensions: L12.5" x H2.5" x W9.0"Power 880Power Output: 125 watts RMS X 2 channels into 4-ohms @ < 1% THD+NSignal to Noise Ratio: 100dBA below reference (Reference: 1 watt, 4-ohms)Additional Power Output:200 watts RMS X 2 channels into 2-ohms @ < 1% THD+N410 watts RMS X 1 channels (Bridged Mono) into 4-ohms @ < 1% THD+NFrequency Response: 10Hz to 60kHz, -3dB (Reference: 1 watt)Dimensions: L14.0" x H2.5" x W9.0"Power 900Power Output: 230 watts RMS X 1 channels into 4-ohms @ < 1% THD+NSignal to Noise Ratio: 100dBA below reference (Reference: 1 watt, 4-ohms)Additional Power Output:340 watts RMS X 1 channels into 2-ohms @ < 1% THD+NFrequency Response: 10Hz to 240Hz, -3dB (Reference: 1 watt)Dimensions: L15.75" x H2.5" x W9.0"Power 920Power Output: 90 watts RMS X 4 channels into 4-ohms @ < 1% THD+NSignal to Noise Ratio: 100dBA below reference (Reference: 1 watt, 4-ohms)Additional Power Output:120 watts RMS X 4 channels into 2-ohms @ < 1% THD+N190 watts RMS X 2 channels (Bridged Stereo) into 4-ohms @ < 1% THD+NFrequency Response: 10Hz to 60 kHz, -3dB (Reference: 1 watt)Dimensions: L15.75" x H2.5" x W9.0"Power 1050Power Output: 290 watts RMS X 1 channels into 4-ohms @ < 1% THD+NSignal to Noise Ratio: 100dBA below reference (Reference: 1 watt, 4-ohms)Additional Power Output:430 watts RMS X 1 channel into 2-ohms @ < 1% THD+NFrequency Response: 10Hz to 150Hz, -3dB (Reference: 1 watt)Dimensions: L17.25" x H2.5" x W9.0"13
Page 1 and 2: POWER Amplifiers400, 760, 880, 900,
Page 3 and 4: POWER AmplifiersIntroductionThe Jen
Page 5 and 6: POWER AmplifiersInstallationBefore
Page 7 and 8: POWER AmplifiersGround Terminal (GN
Page 9 and 10: POWER AmplifiersPower 760/920Four S
Page 11 and 12: POWER Amplifiers4 ChannelMODE2 3 4L
Page 13: POWER AmplifiersTestingBefore finis
Page 17 and 18: Amplificadores POWERIntroducciónLa
Page 19 and 20: Amplificadores POWERInstalaciónAnt
Page 21 and 22: Amplificadores POWERTerminal a Tier
Page 23 and 24: Amplificadores POWERPower 760/920Cu
Page 25 and 26: Amplificadores POWER4 ChannelMODE2
Page 27 and 28: Amplificadores POWERTesteoAntes de
Page 29 and 30: Amplificadores POWERSalida de Energ
Page 31 and 32: Amplificateurs POWERIntroductionL'e
Page 33 and 34: Amplificateurs POWERInstallationAva
Page 35 and 36: Amplificateurs POWERBorne à terre
Page 37 and 38: Amplificateurs POWERPower 760/920Qu
Page 39 and 40: Amplificateurs POWER4 ChannelMODE2
Page 41 and 42: Amplificateurs POWEREssaisAvant de
Page 43 and 44: Amplificateurs POWERSortie de puiss
Page 45 and 46: Garantía Limitada NO RETORNE ESTE
Page 48: Audiovox Electronics CorporationHau

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