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On a Technic SU 610 amp, it makes a crackling noise when turning the volume pot up, if done slowly its not as bad but still makes a noise?

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  • 11 Answers

If it ocours only when turning your volume pot then the pot is worn or dirty inside. I f you are handy get a new pot that is EXACTLY the same and replace it It is simple if you can solder as there is usually only tree connections

Posted on Dec 02, 2012

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Posted on Jan 02, 2017

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VOTIT
  • 2071 Answers

SOURCE: screaming crackling noise when very hot

Crakling sound is a symptom of loose or cold solder in amplifier section where the STK IC or Darlington transistor is located .You better re solder all parts joints there in order the crackling sound is gone.

Hope it may help you;

Regards;
VOTIT
DON'T FORGET TO RATE;

Posted on Jan 08, 2009

Grubhead
  • 5190 Answers

SOURCE: SU-V60 volume knob needs fixing. Very loud

I reckon this could be an older type of volume control, which if it is a spray of Servisol Video 40 on the workings of the control (inside the unit if you can) should correct it. Otherwise it's an IC that controls it and needs to be replaced.

Posted on Nov 06, 2011

xxmartyxx
  • 12 Answers

SOURCE: my su-g95 technics Stereo integrated amplifier

Well it sounds like your amplifier IC's are working correctly since you are hearing that pop. I have the same amplifier and every 10db increment it pops. Have you tried every input? Possibly try starting at a low volume, plug an RCA plug into CD or any other input, and touch the center prong of the other end of the cable. You should get a 60hz hum if your in the USA, otherwise it will be 50-55hz. Regardless it should make noise.

Posted on Nov 18, 2011

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1 Answer

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1 Answer

Crackling noise when turning the volume up, if its done slowly, it doesnt do it as bad


If you are lucky it's an old type control that makes contact with a metal strip. In which case you need only get a can of Servisol Video 40 and spray the control from inside the unit. That will get rid of the dust inside it.
If your not then an IC that controls the volume has failed and will have to be replaced.

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Check valve you replaced has made proper contact in socket. Plug it in and out a few times to clean pins. Is inteference/crackling noise there when volume is turned down to minimum. This should tell you whether the problem lies before or after the volume control. A good clean can solve many faults. Servisol on pots works wonders.

Ian

Jul 24, 2012 | Radio Communications

1 Answer

Crackling noise with my volume knob when i turn the volume


It's probably dust in the volume control. It gets in between the carbon track and the wiper that rotates on the track, or the resistive / carbon track inside the control is wearing out. As yours is stereo there will be 2 tracks and 2 wipers, one could be worn more than the other.
This should give you an idea. Inside Pot

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I have a bamf 5500 series and the amp is on and working but when i turn up the volume the amp will go into protect mode and stay there untill i turn the volume back down then the amp comes out of protect...


you probably have a blown sub(s) that short out when the volume is turned up. it would be a good idea to find out which one(s) is bad and replace it. sooner or later it may make the amp go bad if not replaced or removed.

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The heat sink has the power modules attached but also has 2 power transistors that become disconnected from the circuit board when the heat sink moves or flexes. The pins on each need to be resoldered (it helps to bend them a bit too, prior to soldering). Had the same problem on the same amp today and that was the fix. There was no sound other than a clicking when the volume control was rotated.

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Technics su-v560 stereo amp crackling


That is a common symptom of not properly grounding of negative side of the output of power amplifier section.Just resolder all component parts joint in power amp.sectiton and double the solder all negative ground.Also clean the pots of all volume controls and selector with a lighter fluid or desame that fluid so whatever sound or crackling noise eliminated and works normal again.. Hope it may help you;;

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1 Answer

Slight crackle on left speaker if turn volume up


the speaker is bad when you set the loud button on, you're putting more pressure on the speaker beacuse its bad it wll make that crackle sound. My advice change it.

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Crackleing


No its not EMI.- I have them too and mine are little over a year old. Have noticed the faint smell of electricial burning. Checked the sub and the amp/pwr supply in there must be slowly breaking down. I cant turn my speakers up past 25 percent volume and the crackling/hum gets very bad, We should all be looking for replacement at this point.

Nov 19, 2008 | Dell WL6000 Computer Speakers

1 Answer

Noise when changing the volume and connecting speaker to anything.


firstly check the cable, some times it may in loose contact
otherwise any radiation equipment is located near by the amplifier,
sol. replace the location of the amp. and check cable loose contact

other wise
it is due to its amplifier IC problem, it is weak due to over load signal, or temperature of IC make leakage
sol.replace IC

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