any way to deal with noisy DMDs?

quses

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I have two machines that make a slightly high-pitched whine during heavy DMD activity. Is there anything that can be done about this? The sound is coming from the dot matrix display itself.
 
I would also like to know the answer to this as I just purchased my first pin, R&B, and the display also makes a loud sort of buzzing sound during heavy activity. Is this a sign of anything bad or normal? I've never really noticed this on other pins before but I also have never had the opportunity to be playing a pin in a really quiet environment.
 
I really dont think you can do much about it my machine makes a buzzing sound during attract mode,You might just have to buy a new display
 
I have two machines that make a slightly high-pitched whine during heavy DMD activity. Is there anything that can be done about this? The sound is coming from the dot matrix display itself.

Is this a Data East pin? I know D.E. pins are notorious for this problem... I really don't there is a solution out there.
 
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