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When i turn the volume control on my panasonic portable radio it becomes very crackley. the sound is perfect but the crackling is annoying. Can the volumn control be cleaned. thank you. SH

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Go to radio shack near you and buy a contact cleaner(64-4315)----apply the contact cleaner in volume and move it forward and backward until you get good sound if this failed you must change volume control.

Posted on Aug 06, 2008

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Panasonic sa-pt860 speakers crackling


Panasonic SC PT860 Manuals
The above link is the owner's manual - it may help.
Here are some other ideas:
Try to find out if the crackling sound is coming from all speakers or just one - you may just have one bad speaker.
If the crackling happens at high volume settings, you may be overdriving the system - you'll just have to turn it down!
Try turning down the bass or the subwoofer level.
Is the crackling present with all sources (TV, cable, DVD, bluetooth)?

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Sub Speaker giving intermittent loud crackling and sharp loud popping sounds even with main volume control turned off. Crackling sound can be reduced by turning sub volume control off.


It may be the control itself too. In time, these controls can get dust build up inside it. There are volume control spray cleaners available from Radio Shack or other electronic parts stores. The cheat on cleaning the control is to just rotate it from stop to stop as many times as it takes to clear the noise.

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Crackles and pops when playing and even after it is turned off


UNPLUG the radio. Once you have gotten to the volume control spray contact cleaner, available at most radio shack or other electronic stores, into the switch. WD40 will also work. Clean up any excess liquid before plugging radio back in

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Vox ac30cc2x fault finding


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

I have a yaesu ft-736r with no audio


Hi Jermaine,

It transmits, but no receive, are you sure, have you tried playing around with the volume control?

If, so did that make any crackling noise? If so, then this is due to lack of use of the volume control, many radios, including the old transistors with dials, would make crackling sounds when you adjusted the volume, and as I say, this is due to lack of use, So if this is the case and to get your receiving, turn the volume control up & down fully for a few minutes and while doing so your radio might receive a transmission that will be loud, quiet, loud, quiet, etc., as you play with the knob.

Keep doing so until all crackling has disapeared.

Do this often as possible when firing up your radio for the day, the more use these controls get, the better.

I hope this has answered your query.

Cheers,
Peter

May 29, 2012 | Yaesu FT-736R

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.

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Try turning the volume lowwer on the mp3 player and higher on the head unit. The radio is trying to amplify an amplified sound which is why you are getting distortion.

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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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Motorola Speaker


to dissamble this radio you have to remove the face panel, under this face panel ( the blue one) you will find others screws. first of all try if you have an audio accesorie, with this earbund or head set the audio must be normal or the same quality than the other one, if is not, the radio need quilified service. Good luck Ernesto

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