(Topic ID: 254966)

Data East Speaker Hum


By Cozmos001

17 days ago



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  • 11 posts
  • 9 Pinsiders participating
  • Latest reply 16 days ago by wdennie
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#1 17 days ago

Hi. Been lurking for years. Not a big social media guy. I love pinball and am happy to be here. I'm glad there's folks who care this much about pinball that would come on to help others.
Anyhow
....
How do you sell a Data East Tales from The Cryp tee pinball machine if it has humming speakers and buzzing dmd?
Disconnect the right speaker and it reduces it 50% till the poor dumbwad gets home and realizes it.
Yes this happened just the other day. I'm not about bashing folks so I'm not going to get into the details but when I went to buy my pinball machine the other day I noticed the hum coming from the speakers and the owner said oh they all do that and yeah I understand they do that but I said is there any idea to effects and he says well you just have to connect the one speaker back to the board so I had some time today to start diving deeper into my machine and I realized he actually disconnected the right speaker when I reconnected the right speaker I heard the loudest I'm coming from both of them he also said he replaced the power board so I'm sure that has something to do with it again I'm not getting into too many details but just more of a story to make sure that you look at what you're buying up and down and left and right because there's people out there who would rather you figure these things out what's wrong with them and try to sell you on your excitement rather than sell you a good piece. Yes I was that stupid not to spend more time examining the entire machine and I will know better next time but people who care about others and say they care about others in the hobby would at least give you a heads up as to what's wrong with their machines before they sell them to you. Not to mention sometimes it's funny to play stupid with somebody who thinks they're going to take over on you but the tables get turned on them for doing those things. anyway I'll be on here left and right because I'm looking to upgrade my machine and hope that I could be of help to others when I can

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#2 17 days ago

DE games are notoriously noisy when it comes to audio hum/hiss. You can rebuild the sound board but it won't likely help. They're just freaking noisy.
And your DMD being noisy (high pitch squeal) is just the DMD being old/going bad.

#3 17 days ago

I can tell you the DMD noise when away when I installed the ColorDMD! Still have some speaker hum but I got used to it.

Quoted from CLEllison:

DE games are notoriously noisy when it comes to audio hum/hiss. You can rebuild the sound board but it won't likely help. They're just freaking noisy.
And your DMD being noisy (high pitch squeal) is just the DMD being old/going bad.

#4 17 days ago
Quoted from CLEllison:

DE games are notoriously noisy when it comes to audio hum/hiss. You can rebuild the sound board but it won't likely help. They're just freaking noisy.
And your DMD being noisy (high pitch squeal) is just the DMD being old/going bad.

Thank you both.

#5 17 days ago

I had a Jurassic Park, all original boards, no hum. Played it for a year.

Then the power board died one day. I got a new rottondog board, installed it, and then I had the hum. Nothing I did would make it go away.

I don't know if this will help anybody or not, but there it is.

#6 17 days ago

Some people have had success, myself included, "floating" the sound board off the metal backing with nylon washers and screws. You can get plastic screws at any hardware store for a total of about $1.50, so it's worth a try. There's a ground loop on some boards that is eliminated when the board is floated. The board will still be grounded through the connections.

#7 17 days ago

Every DE game I've owned has a hum (including TFTC). I haven't dug into the issue, but there are folks on here that have ways of correcting it.

#8 17 days ago

I have tried several fixes on various DE/Sega games.. The hum never seems to go away.

#9 17 days ago

Look here: https://pinside.com/pinball/forum/topic/data-east-speaker-noise-ideas-for-a-cure/page/11

On page 11, Posts #505 and #506 explains how adding an additional small power supply completely eliminated the hum for those that tried it.

It does work. And many many many others have had mixed results with replacing caps and speakers and such. I would actually get the $20 power supply first and see if that resolves your hum. If not, go to other less likely causes like speakers, caps, amps, and grounding. I've floated boards and upraised speakers and it usually does not completely eliminate the hum.

If you're not electronically savy, you may need to call in an expert.

Also, I think you are overreacting a bit with your post. It does not sound like the seller deliberately mislead you about anything. This is a VERY common problem that can be very difficult to resolve. Seller likely had no idea how to resolve it either.

#10 16 days ago

That won't fix the attract mode buzz though. So far, nothing that I have ever seen fixes that. I have most other buzzing stopped at this point.

#11 16 days ago
Quoted from snyper2099:

Look here: https://pinside.com/pinball/forum/topic/data-east-speaker-noise-ideas-for-a-cure/page/11
On page 11, Posts #505 and #506 explains how adding an additional small power supply completely eliminated the hum for those that tried it.
It does work. And many many many others have had mixed results with replacing caps and speakers and such. I would actually get the $20 power supply first and see it that resolves your hum.

Did this on my Star wars, NO hum at all!

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