Same issue with mine

They all do, it's HV whine. Varies game to game, some are worse than others, breakshot is terrible for this.

FYI, your video isn't accessible.

The display is dying. The only fix is to replace it, unfortunately.

In fact, it's a good idea to replace it even if the dots look ok since a dying display tends to put a lot of stress on the display driver board.

Unfortunately, DMDs don't last forever, and this one is on its way out.

Those plasma DMDs all make noise, some more than others. It doesn't mean it's failing. I think Cherry displays make more noise than Babcock and Vishay-Dale. You have 3 other displays so try swapping it around and see if it changes. Chances are it still stays noisy.

I've never heard of a bad or failing display taking out a DMD driver board or a bad DMD driver board taking out a display. The HV section on the display boards usually go out way before the displays, but displays do go bad.

Swap that display into ToM or TAF or TZ and see if it's noise gets better. If so, then leave it there.

Yeah that actually do. But they are either not as loud which is likely so you don't notice, or the frequency is different and you aren't hearing it, quite possibly a mix of the two reasons.

Massive overkill there, if it's working and the voltages are ok leave it be. It's not gonna blow a board, and the whine does not indicate imminent failure.

The issue is that as a DMD starts failing, it pulls more current, and it stresses the HV section, which overheats and burns up the PCB and components.

It's more of a slower, long-term failure that greatly shortens the lifespan of the components, rather than a sudden death.

I've encountered noisy DMDs before like the OP has described. It's loud enough to be heard over game sounds at near max volume. They are much, much louder than the normal quiet hum of a working DMD.

Directly from the OP:
It's not really noticeable when playing, but having the game in attract mode and hearing the buzz is annoying and it's growing on me.

you say you've seen them as the OP described, so loud it's heard over the speakers at near max, much louder than a normal DMD.

based on exactly what he wrote that's not the case at all.

He does not have a failing DMD. unless your definition of failing is equivalent to saying every person is dying if they are alive.

It would be like a healthy person vs a chain smoker.

I'm waiting for you to point out where the OP said it's so loud you can hear it over the speakers on full. I've pointed out where the exact opposite was stated.
So far there's a strong consensus of it's normal, your sky is falling view is literally the only one making that claim.

Loud noise generated by the DMD that can be clearly heard from across the room is not normal. A quiet hum from the DMD that can be heard from a few feet away in a dead quiet room is normal.

I didn't say on full volume--I said close to full volume. Obviously, at some point the sounds from the speakers will drown out most mechanical or electronic noise for the most part.

You can likely also find a new or used monocolor LCD/LED display for $100-$150 which will be completely silent in operation. Since this is a low voltage display, it will not use any of the HV components on the driver board; you can and should remove both fuses from the board at this point.

OP never stated it's clearly heard from across the room, OP stated it's heard in attract mode, OP started it's not noticed during games. OP does not state game volume is at, or near, max during game play. If the OP is like most people, the game is likely set at somewhere between the default minimum of 8 and maybe 12, unless the OP has the minimum override turned on. Most people don't keep games in their house near max under normal circumstances, maybe a but higher for a party sure.

I disagree. I have bought a couple of brand new Vishay DMD from Pinball Life in the past and they make this same high voltage whine, and yes I can hear them 10 feet away in attract mode with the translite in the game. I think even Babcocks also whine quite a bit.

ColorDMD is just awesome. Quiet and colorful!

I know this is adding to an older thread. I have a T2 with a buzzing DMD that scales with how many segments are lit up. Been that way since I bought the game a year ago. Very noticeable in attract mode and somewhat when playing too.

My congo is silent. And my JP has a color display also silent. Except for the pinwoofer kits I have in all 3... But anyway T2 is kind of annoying and I was curious what I had to do to fix it. Sounds a bit like congo gets color and T2 gets the donor...

Sad thing is the display is perfect other than that. Kind of a bummer to replace it.

I have this altering frequency noise that increases the more that the DMD is lit. It's in a WPC Hurricane.

I'll do some colt testing on the connector tomorrow and see what's what. I had planned to replace the HV parts

As I mentioned above, it will the DMD. I had new Vishay DMDs that are the loudest of them all.

Easier just to swap the DMD between your 2 games and see for yourself.

Will give it a go. NOS Cherry DMDs are 300$

Voltages all checked out fine.

Vishay brand was the last DMD to be produced from what I read/seen.

My Vishay display is almost dead silent. Replaced a cherry which was quite loud.