Question about Cambridge Audio Azur 540D

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Speaker Connection Excuse my ignorance but just got my cambridge audio 540A amp home and cant connect my speakers to it. I cant get the plastic protective caps out of the terminals on the amp.Please help?

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Put teh wire of the cable in the side of the plugs once you have untwisted them - they dont come out.

Posted on Jul 21, 2008


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Caimbridge audio amp right channel always dies

Stereo amps are two mono amps put together. So if you have a bad channel then you also have a good channel to compare it with. I suspect you have a faulty transistor. You can test it by proding the channels with a pen or your finger - touching plastic only parts. The two channels should buzz. If buzzs in the left then if you touch it in the right it should do the same. An alteration or change in the sound in the right and you have found the faulty part.
It's nothing to do with the power supply section so keep away from that!

Dec 10, 2012 | Cambridge Audio Audio Players & Recorders

3 Answers

Volume goes to zero and protection light comes on, any idea what the problem is?

Check the speaker wires for a short. Try operating the amp without the speaker wires hooked up.

Feb 27, 2011 | Cambridge Audio Azur 540A Amplifier

1 Answer

I use an azur intregrated amp 540A and a Azur Pre amp 640P. When first power up, The amp makes a popping sound and the volume turns down. Some times it can pop 2 or 3 times within a few minutes. Then it...

I've never repaired one of these but I have an amp at home that makes a intermittent static "popping" noise that i'm going to put down to a dirty volume pot (control) that needs cleaning. I will also have to change some of the electro capacitors that have dried up inside which cause "shot noise". With the right lubricant (electrical contact cleaner, nothing else) you could take to lid off and spray a small 1 second blast into the hole of the pot and any other balance or tone control yourself but I would take it to the electronics repairer to get the capacitors checked over.
My theory only
Good Luck!

Jan 17, 2010 | Cambridge Audio Azur 540A Amplifier

2 Answers

My amp states overload protection and no sound from both front speakers but all other speakers are working

Unplug speakers. Try headphones - are they working? Are speakers correct impedance? If it says 8-OHMs output, are you using 2-OHM or 4-OHM speakers, if so, not good. Sound like wrong impedance speakers or a short in the speaker wiring/connector.

Dec 29, 2009 | Cambridge Audio Azur 540A Amplifier

1 Answer

Left channel not working: makes fuzzy sounds and lacks power

output transistors faulty or possible speaker protection relay contact problem

Dec 28, 2009 | Cambridge Audio Azur 540A Amplifier

1 Answer

Left output ports for both left and right channels do not work

Hi, first thing to do is to check the power supply look for a larger capacitor & using voltmeter measure both sides from ground to positive & ground to negative. Next check the speaker protection circuit if active. If not active measure the voltage from ground to the speaker output before the relay of speaker protection device. The voltage should be zero or close to zero volt. If more then the power transistor or power IC is toasted.

Aug 10, 2009 | Cambridge Audio Azur 540A Amplifier

2 Answers

Can't connect amp to speakers

MOST amps have a small plastic plug in the center of the amps speaker output sockets use a small screw to pull these out.

Feb 22, 2009 | Cambridge Audio Azur 540A Amplifier

2 Answers

My azur 540a/640a v2.0 amplifier is not working.

Loud buzzing normally means dc on output or through your spaeker,amplifier needs to be serviced as it is faulty

Dec 25, 2008 | Cambridge Audio Azur 540A Amplifier

2 Answers

Amp keeps turning itself down - cant turn off 'protection'

yes,pls.stop plugging the system,you may harm your system if you do so,the system has it's own system analysis mode,and if there's something wrong in the circuitry,it will activate,you need the authorize service center my friend,it's a technical problem.

Dec 09, 2006 | Cambridge Audio Azur 540A Amplifier

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