20 Most Recent Cambridge Audio Azur 640A Amplifier Questions & Answers

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The left channel in my cambridge azur 640

have the volume control cleaned by a spray of electronic contact cleaner. If the carbon coating material is already wiped-out due to use, have the part replaced
5/19/2022 10:16:49 PM • Cambridge Audio... • Answered on May 19, 2022
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The protection light is flashing

Hi...
Blown fuse internally or one of the power transistors have failed
3/26/2017 1:35:43 PM • Cambridge Audio... • Answered on Mar 26, 2017
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Cambridge audio 640a problem, olume goes to zero, I hear a little bang on speakers, light starts blinking!

This sounds like there's an overload in the main amp section. Often caused by a short-circuited device.
11/5/2014 5:01:44 PM • Cambridge Audio... • Answered on Nov 05, 2014
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I have a Cambridge 640A Amp .The Cap5 detection

Check output transistors and drivers, problem in the output stage
1/9/2014 9:04:01 AM • Cambridge Audio... • Answered on Jan 09, 2014
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I cannot open my cambridge audio 640A compact disc

This is a common issue with all belt-drive cd players, all you have to do is to change that belt and you should be done, or take it to a shop for servicing, as this is a part of a simple service maintenance routine, cheap fix though.
11/8/2013 12:04:51 AM • Cambridge Audio... • Answered on Nov 08, 2013
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Right channel not working

An idication of a faulty headphone socket if the headphones being inseted cuts off the speakers. Otherwise a faulty switch that switches the speakers off.
1/27/2013 6:18:26 PM • Cambridge Audio... • Answered on Jan 27, 2013
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3answers

Cambridge 540A something blew up when connecting input to amp!

mmmm... i had a problem like this before, it seems that you have blown a IC or 2 or 3... if you have blown all your channels IC's then it would be better to buy a new amp, it also depends on what watts your amp is... if it isn't a very high watt amp then it wouldn't be that much to fix, if u only blown 1 or 2 Ic in a channel then let it get fixed, and NEVER switch ports if your amp is still running/playing... its like fixing your car when the motor is running...
9/27/2012 10:06:30 AM • Cambridge Audio... • Answered on Sep 27, 2012
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C/Audio Azur 640C Cd player rejects discs

the set is not loading because the loading action is not getting compplete. please look into the loading drive and correct the loading , check on the drive. if after it had loaded the cd is not loading the drive then check also onthe belt drive, clean the lens of the optical drive because if so it will not read and so stop action.
change the head if the cd is not turning or if it totate and not reading. Helpful? Good day
4/3/2011 6:43:23 PM • Cambridge Audio... • Answered on Apr 03, 2011
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Cambridge azur amp 640a working

Looks like the fuse blown.. or the classic symptom of electrical fault inside the amp. 640A uses a sensitive protection circuit often ends up in this irritating situation. Normally, there is nothing much you can do, but just check your wall plug connection for Open Ground or Left & Neutral reversed issues. If the wall plug is free of error, then you should better contact CA technical support.
3/6/2011 1:33:03 PM • Cambridge Audio... • Answered on Mar 06, 2011
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My CA Azur 640A v2

Most 640As suffer from this sensitive issue. It is not a fault, but a protection mechanism that is too sensitive. In some cases, it could be due to the open ground earth issue or Left & Neutral reversed at the wall plug. Check your wall plug's connection and if they are perfect, then it could be because of a electrical issue inside the amp. In that case, get the technical support from CA to fix this.
3/6/2011 1:30:22 PM • Cambridge Audio... • Answered on Mar 06, 2011
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1answer

Hi, I have only used

Looks like a electrical problem. Ensure your plug's earth is properly connected to the building earth. Amps like 640A uses sensitive circuits and the fuse will definitely blow, when there are issues, spikes or returns in the power supply.

Try shifting the amp to a different wall plug with some proper ground earth, and check it. If the fuse still blows, then the power cable in the amp may have some problems.

Hope this helps :-)
3/6/2011 8:38:51 AM • Cambridge Audio... • Answered on Mar 06, 2011
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