Question Crazy noise from speakers

[MolleMorten]

Hi.

I have a home stereo with Arcam Solo Movie 5.1 AMP.
It has allways just been ON and i have it setup, to run sound through, optical cable from TV to AMP.
I have my computer to run over the TV screen..
So when i turn off the TV or COMPUTER, it goes on standby after some time..

I have now been out of my home and only home in the weekends.. So i have turned off the power plug with (TV, PS4, COMPUTER, AMP)

One day i came home in the weekend.. My speakers where saying crazy LOUD white noise sounds + buzzing..

So now i have to restart comptuer and/or amp several times before i get it to play again

And everytime i turn off computer i have to turn off power at the plug or it will go crazy the white noise after some minuts..

Im affraid the amp soon will stop working / playing Anyone have any thoughts or ideas??

I tryed pulling every speaker cable while white noise is on.. And tried switching optical cable behind AMP from SAT to AUX and no differnce..

Never had so much as 1 problem with AMP before

 

[aversaurus]

How old is the amp ?

 

[MolleMorten]

I bought it used for 5 years ago.. so Maybe 10 years

 

[aversaurus]

It's probably a capacitor going down in the amp .they swell and don't holed there charge .they can last for ever .not a expensive fix if you can find someone to do it.

 

[MolleMorten]

Is that an universal part or do I have to buy it to the amp? Do you have Any websites for part?

 

[aversaurus]

It's inside the amplifier you will need to take it to a repair shop and get it checked .unless you know what your doing and what to look for it's not a job you can do your self.

 

[MolleMorten]

Yes i know its inside.. but where can i get the part or do I let Them change it? How Much is the part cirka in price?

 

[aversaurus]

Let them change it the part is probably less then £2 . There will be quite a few capacitors in the amplifier and without knowing which one as they will be different sizes you can't buy the part in advance.

 

[MolleMorten]

Okay thanks.. and how do you know it might be that there is wrong? (Have you tried it before) and is it because i just turn off the amp by taking out the power plug

 

[Gray]

Get a repair estimate before having any repair done.
Even if the part is cheap, doesn't mean the repair will be.
There's a thread on the forum at the moment.....his part cost less than a tenner....the repair cost was £274.
He paid the price, but the fault symptom has not been cured. Think hard before acting.
With respect, if you don't know what a capacitor is....don't think about changing any parts yourself.

 

[MolleMorten]

Im an electrician.. but I only make house Electric not gadgets and Machine..

Yes i will look for a price first.. but how do you know it could be capacitor? Have you tried that before i meantion

 

[Tinman1952]

So you have your PS4 and your computer connected to the TV via HDMI and then optical from the TV to the Arcam. And when it’s working ok but you turn off the computer…you get the ‘white noise’ after a few minutes?
What is the TV setting for the digital audio out?

 

[Gray]

Im an electrician.. but I only make house Electric not gadgets and Machine..

Yes i will look for a price first.. but how do you know it could be capacitor? Have you tried that before i meantion

Unless they know of a specific, common fault, the first thing any repairer will do is have a good visual check - looking for any obvious sign of trouble. You've got nothing to lose by doing that yourself - at least as an electrician, you won't do anything silly.

If you get an estimate, try to get one that's free. In the example I mentioned it cost him £45 (deductable from the eventual bill - but £45 wasted if he had refused the repair).

See Tinman's suggestion above about the digital o/p setting, before deciding what your problem actually is.

 

[MolleMorten]

So you have your PS4 and your computer connected to the TV via HDMI and then optical from the TV to the Arcam. And when it’s working ok but you turn off the computer…you get the ‘white noise’ after a few minutes?
What is the TV setting for the digital audio out?

Yes thats correct.. oh I dont know what settings im first home at the weekend.. but it have worked perfectly the Way it is now for many years.. only Thing different is i take the power from the outlet if that hurts the amp?

 

[Tinman1952]

Yes thats correct.. oh I dont know what settings im first home at the weekend.. but it have worked perfectly the Way it is now for many years.. only Thing different is i take the power from the outlet if that hurts the amp?

If it’s working ok and all you do is turn off the pc…then I can’t see how it can be the amp….
If however the TV was switching the digital audio output to bitstream instead of pcm… then that would give exactly the noise you describe.

 

[MolleMorten]

If My computer is standing still for 10min.. it goes on standby.. and a few minuts later the noise comes on.. and I have to restart computer and/or amp many times before it works.. and nothing has changed in My settings on pc or tv

 

[Tinman1952]

Yes but your TV detects all the devices connected by HDMI and when one goes off I’m wondering if the TV is changing the audio output…that’s all. I still don’t see how it can be the amp in that situation.

 

[MolleMorten]

Okay i will try.. but the noise stays on after i turn on the TV after it goes on standby..

 

[Tinman1952]

Okay i will try.. but the noise stays on after i turn on the TV after it goes on standby..

I don’t know what model your TV is but if the digital audio output is set to ‘auto’ then try setting it to PCM. It‘s a long shot but it might save you a hefty repair bill. 🤞

 

[MolleMorten]

Thanks alot i will try friday.. Hope you get notifikation on this topic when I tell you result

 

[aversaurus]

It's odd that he has to reset the amp multiple times to get it to reset

 

[Gray]

Thanks alot i will try friday.. Hope you get notifikation on this topic when I tell you result

As part of your tests, don't let that noise blast through your speakers at high volume - unless you fancy some new speakers.

 

[MolleMorten]

Yes and tried just restarting amp.. thats not enouhg allways.. I also have to restart computer too..

If i turn off computer normaly in Windows.. the noise comes after some minuts still.. thats why i think its amp.. and its from speakers and not subs

 

[Tinman1952]

It's odd that he has to reset the amp multiple times to get it to reset

Yes I agree that’s weird… but I suppose if he’s switching the amp and PC on and off it might just be a ‘sequence’ thing…🤔

 

[aversaurus]

But why would it start doing it now and not always .it could be a lot of things .but something has changed could be a Windows update .