Cambridge Audio 840A user manual Troubleshooting

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TROUBLESHOOTING

There is no power

Ensure the AC power cord is connected securely.

Ensure the plug is fully inserted into the wall socket and is switched on. Check fuse in the mains plug or adaptor.

There is a loud buzz or hum

Check turntable or tone arm for ground and connection lead fault. Ensure no interconnects are loose or defective.

Ensure that your tape deck/turntable is not too close to the amplifier.

There is no sound

Make sure the unit is not in Standby mode.

Check that source component is properly connected.

Check that 'TAPE MON' is not switched on (unless tape input is required). Check that your speakers are properly connected.

If using Speaker B terminals check they are switched on. Make sure unit is not in mute mode.

There is no sound on one channel

Ensure that balance control is in the correct position.

Check speaker connections.

Check interconnects.

Unable to make or play tape recordings

Check that TAPE MON and TAPE OUT have been connected correctly.

There is weak bass or diffused stereo imaging

Ensure that speakers are not wired out of phase.

Message on display flashing

See section on CAP5 protection system.

22Azur Class XD integrated amplifier

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Contents Azur 840A Contents 840A Class XD integrated amplifier IntroductionChecking the Power Supply Rating Safety PrecautionsPlug Fitting Instructions UK Only Important Safety Instructions Rear Panel Connections Preamp Out RS232C BUS Ready/Incognito Ready multi-room outputsInput 1 Balanced Audio Tape In/OutStandby/On Front Panel ControlsPhones Bass and Treble VolumeMode Infrared sensorMute Remote ControlNumerical buttons SpeakerA/B Speaker A/BBasic connection ConnectionsTape connection Speaker B connections Preamp Out connectionsBalanced audio connections Speaker A/B Operating InstructionsBalance Amplifier Setup Input gain trim Volume displayFixed level inputs On/Off control menu 640TMULTI-ROOM PS10Custom Installation C.I. USE Remote control commands positiveDC detection Over temperature detectionCAP5 Five WAY Protection System Overvoltage/overcurrent detectionShort circuit detection Intelligent clipping detectionTroubleshooting Technical Specifications 840ALimited Warranty 840A Class XD integrated amplifier Azur 840A