Why does my Cambridge Audio Azur 851W power down even when a signal is operating.

1 Answer

Andrew Manche

Level 1:

An expert who has achieved level 1.

MVP:

An expert that got 5 achievements.

New Friend:

An expert that has 1 follower.

Cheetah:

An expert who has answered 20 or more questions within one hour.
Contributor
28 Answers

Amps like this only power down when there is a problem with the amp, usually a shorted output stage, but could also be shorted speaker wires or damaged speakers, it's a self protection mechanism

do you get sound from both speakers before it powers down?? if you do it is definitely an internal problem so take it to a repair facility,,,

if not check the speaker cables & the speakers themselve

Posted on Feb 28, 2015

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

0helpful

1answer

Cambridge Audio Azur 340A amp not responding to remote

I would repair the volume control motor driver circuit.
They often fail.

Read full answer

Jan 14, 2022 • Marantz Televison & Video

1helpful

1answer

Cambridge Audio Azur 640A on/off problems

Find out what is causing the protection light to turn on. Troubleshot down to the component level.

Read full answer

Aug 24, 2021 • Cambridge Audio Audio Players & Recorders

0helpful

1answer

Cambridge azur 540r receiver just stopped working. no power showing to on/off led.

Could have a problem in the power supply section. Check for open diodes and bad capacitors.

Read full answer

Sep 27, 2015 • Cambridge Audio Azur 540R Receiver

0helpful

1answer

Cambridge Audio Azur 650A service manual

try:
http://www.excelia-hifi.cz/cambridge-audio/manual/cambridge-audio-azur-550a-650a.pdf
Is the user manual try the OEM for the service manual, most OEMs will require you to be qualified to do the repair.

Read full answer

Oct 04, 2014 • Audio Players & Recorders

1helpful

2answers

Cambridge azur 650R shows "PROTECT" after Volume more than 1/4, protection-relay works, loudspeakers&cable are o.k, WHY?/Solution (relay broken)?

What ohm rating does the receiver have and what ohm speakers are you connecting. If the receiver is rated for 8 ohm speakers and you are connecting 4 ohm speakers, you are overdriving the amplifier. This will cause the protection to trip. Also make sure your speakers polarity are matched. If they are out of phase this may also cause a problem.

Read full answer

May 28, 2014 • Cambridge Audio Azur 650r 7.1 Hdmi 1.3b...

0helpful

1answer

Cambridge audio Azur 540a repair

Open your amplifier then find the power relay inside push the power button and observed the relay if active. If so the measure the voltage on large capacitors. But if the relay is not active check the relay drive transistor and the blocking diode across the coil.

Read full answer

Oct 05, 2012 • Cambridge Audio Azur 540A Amplifier

0helpful

1answer

Cambridge audio azur 840a volume control problems

The volume control is a resistor ladder controlled by software. If powering off the unit for an hour doesn't fix it, I would imagine that one of the "steps" has a problem. Contact your dealer or visit http://support.cambridgeaudio.com/.

Read full answer

May 02, 2012 • Cambridge Audio Azur 840A Amplifier

0helpful

1answer

I want to buy a trasformer for cambridge audio radio ammplifiare azur 540 v2

Cambridge Audio will be the only people that have spares
Check their website

Read full answer

Aug 26, 2010 • Cambridge Audio Azur 540A Amplifier

0helpful

1answer

I need a psu for a Cambridge Audio Azur 540P phono preamp

any stepdown transformer rated 12V secondary with at least 0.5A rating would do (12V, 500mAmp). I know they said to use only the supplied power unit but hey that's business! but make sure whether your mains supply is 110Vac or 220Vac.

Read full answer

Mar 11, 2010 • Cambridge Audio Azur 540P Amplifier

0helpful

2answers

The left channel in my Cambridge Azur 640 amplifier keeps cutting out. Wierdly I can often 'shock' it back to life by quickly turning up the volume a lot. Any ideas?

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

Read full answer

Aug 03, 2009 • Cambridge Audio Azur 640A Amplifier