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

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  • tonys_new_de
    tonys_new_de Nov 28, 2012

    Forgot to say for a Technic SU 610

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  • Audio Player... Master
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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.

Posted on Dec 17, 2012

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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?


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

Nov 28, 2012 | Audio Players & Recorders

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

May 05, 2012 | Audio Players & Recorders

1 Answer

My Korg c15s has a lot of grating staticky noises when played ....I'm told it cannot be repaired as Korg no longer makes parts for this model?


I have a Korg C-15s and also experiencing loud crackling sounds when I turn it on. The problems seems to be either the sliding volume control or the amplifier itself. Honestly though, I believe the issue is the volume control. I opened my piano to get a closer look and attempted to clean the contacts on the volume. Unfortunately after cleaning the contacts, the crackling sounds became somewhat worse. After I turn the piano on, the volume control is generally rendered useless......volume set to low volume and the noise is quite loud and other times the volume control is set high and get very low volume crackling noise. No real consistency. The noise does diminish after a few minutes but so does the piano sounds to an inaudible level. There were a couple of instances where I turned it on and surprising enough, no no noise and perfect sound. For these reasons I believe the issue is within the volume control and not so much the amplifier. I have an electronics background and noticed that the volume control is very unique in design and is not something that can be substituted with another volume control from other sources.

My recommendation is to check the sound quality of the audio from the RCA L/R audio outs on rear of the piano by connecting to a stereo receiver. If it sounds fine you're in luck. If the crackling sound does not diminish after a few minutes like mine does, I would suggest disconnecting the internal speakers and using the audio out only. You can connect a pair of studio monitors or high quality computer speakers, preferably with a small subwoofer to deliver the full audio range and deeper tone of a real piano. I'm currently using a basic pair of Logitech computer speakers and is quite acceptable until I can afford a high quality set of monitors or relocate my piano closer to my high quality Yamaha receiver.

I hope this info helps a bit.

Aug 18, 2010 | Yamaha Full-Size Keyboard

1 Answer

My Aiwa powererd sub-woofer TS-W50U) has crackling sound.


Crackling is an unusual noise but typically indicates a bad capacitor in the amplifier board. This can be a rather costly repair but first we will go through basic trouble shooting steps.

Reduce the volume on the sub and see if the noise remains and changes with the volume.

Unplug the sub and disconnect interconnect cables. With both hands push softly on the speaker cone to move it in, let it back out and do this a few times. If you hear a scraping noise and some resistance your driver is misaligned and you need to recone or replace the driver.

Check all your interconnect cables, there may be a bad internal connection (usually causes pops and cut-outs).

Let me know how things workout. If it makes the crackling noise at all volumes and the driver seems fine then I would seek a professional to repair it, or replace.

Cheers,

Kevin

Feb 09, 2010 | Aiwa Audio Players & Recorders

1 Answer

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;;

Jun 08, 2009 | Technics Audio Players & Recorders

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.

Mar 03, 2009 | Panasonic CT-27G7 27" TV

2 Answers

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

Crackling noise


it might be the speaker or it break

Jul 29, 2008 | Sennheiser HDR 120 Consumer Headphones

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

Oct 24, 2007 | Logitech Z-5300 Computer Speakers

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