Yes, i did. Works great for lotr too.

Thanks sed6. I received my set very fast and they work as described. It was great to see a useful product for a reasonable price.

I saw this and thought these would be pretty simple to make. But $10 shipped? Forget that, set ordered. Thanks sed6.

So my lotr board looks like this too. I put them on 106 and 110. I guess my hum wasn't too bad because I can't tell to much difference except it lowered the main volume a lot (so I turned it up).

Keep making them, great mod!

I'd buy some if still available.

Very nice. What gauge wire did you use for the red and black wire?

Made up a set today and it worked great, the humm was driving us bonkers! Clips only slide on one way so make sure to bend the wire on the bigger side or it will not snap up good.

Has anyone tried this in Star Trek Pro?

I don't get the hum in my ST Pro like I do TSPP...you do?

I don't get a hum with my ST Pro. I did do this mod on my Stern NFL and it helped immensely.

It's not nearly as loud as TSPP but it's got a buzz... TSPP and DESW used to have a noise contest but after pin2dmd and RasPiSound Star Wars is silent.

Ordering one for TSPP thought I'd give it a shot. Any guidance on where it goes in ST would be much appreciated

I put a PinSound in my TSPP, now not only is the HUUUMMMMMMMM BUZZZZZZZ gone but I have SWEET sound!

Serious question, not trying to be a jerk... is it really better sound? I think TSPP sounds pretty good already (sans the buzz)...good bass, clear and good sounding call outs etc...

DESW is lo-fi at the source and kinda corny compared to OST

I upgraded the speakers too, but yes no hum/buzzz and IMO sounds better

I just finished trying out this mod, and it did lower the hum a lil bit, but i'm still getting quite a bit of hum, adjusting the pots doesn't seem to lower or raise the hum. When i remove the pot from R110, that's when i hear the hum increase, when i remove the pot from R106, nothing changes. I'm wondering if it's maybe my transformer, I tried hitting the top of it like some mention, but that doesn't seem to do anything.

Make sure it’s not the transformer for the fluorescent tube that buzzing.

I bought 2, one for TSPP and one for my noisy Star Trek Pro. TSPP worked as it was supposed to but turned out I didn't need one for STP because my fluorescent light was buzzing like a bee. Led kit cured that one, now the whole collection barely makes a peep (if Big Guns didn't hum...). So, pop the light out and see what happens!

The hum/buzz is coming through the speakers and sub though.

This fix still works great. I made some for my T3 and couldn’t be happier.

I've just done it on Goldeneye. It was with a brand new rottendog mpu that had so much static it was silly. Just put a pot across R110 and set to about 3.8k and it took most of it away

Did this today and it worked like a charm. Thank you.

Just wanted to stop by and say thanks for this post. I just did this to my TSPP and it is amazing to have that hum gone.

5 years going and still a great tutorial.

I still wonder if this would work on the DE hum...

Used on VND years ago and it helped.

Glad to see this modification lives on and is still being used! I wrote the original write-up 20 years ago and had it hosted on the Paisley site (post #5) but seems to be no longer active. I'm sure a Google search might still find it buried somewhere.

I like the clips and pot idea. I never thought of that when I modified my Monopoly when I bought it NIB in 2001. That Whitestar board just had too much gain in the amp section for my sanity. I'm glad people took and ran with my fix and helped others out.

I would have gone the Pinsound route, but after looking on their site, the only soundtrack for my Whitestar machines I have are the ORIGINAL, so I am going to solder in a dime's worth of resistors into R106/110 this weekend and save $350 on the pinsound for whitestar kit. Not as elegant, or fun, but an OK plan.

My pinsound TsPP package is awesome. Highly recommend it.

I have Ripley’s and ROllercoasteTycoon. Neither have an updated soundtrack....

8-(

Just applied this to my The Simpsons Pinball Party and Lord of the Rings and it is glorious. I love that it gives some amount of control over being able to adjust the audio mix. For my Lord of the Rings , I was able to dial it in to where the callouts really stand out more now too. All without that damned buzz. Thanks to everyone who wrote up the guides and found the original fix.

Does anyone sell this kit? I have zero soldering experience and would be much easier if I can just buy this setup.

Thx

Anyone else have a different bird where the resistors are right beside each other?

DF7C7E14-2D25-4F9F-988E-C16FEC6889F1 (resized).jpeg

It was mentioned earlier on this post I believe by Lermods.

I think you can also replace the resistor to increase resistance. I would prefer a permanent fix rather than the clip on.

The permanent fix is either add a extra resistor of 5k ohm on the other resistor or replace the current one 5k ohm with I think 10k ohm. As this clip on fix makes it also 10k ohm. But I think it might be best to use the clip-on to check what ohm you really need as you might need to dial it in a bit as adding 5k ohm might not be enough or to much for your issue.

I just installed it myself and it works great to mitigate most of the buzz so I might need to add more resistance to clean up the sound some more. But it much much better.

Tnx to sed6 for solving this issue and make simple solution to this issue.

To completely eliminate the issue you have to use a pinsound board it will come in the future but it is really expensive and a whole new rabbit hole of options. But for me this is for now enough to solve the issue.

The resistor circled in the pic above is 10K. Adding another 10K across it would reduce the overall resistance to 5K. Is this what you are trying to achieve?

I most certainly would NEVER use alligator clips to hold wires in place - it's just not good practice for many reasons.

Yes you are right alligator clips are normally for temp stuff. But after my experience try before make it permanent.

So after 1 week I removed it as in the later levels the sound got slowed and distorted. And it fixed not enough of the buzz for my machine. So next up is a pinsound module but that is for a later time.

Stern addressed this with service bulletin #133 for Monopoly, a Stern Whitestar board set from 2001. The fix for TSPP is identical. If you can't solder, I'm sure you know someone who can!

sb133 pg1.pdf

sb133 pg2.pdf

Those updated resistors listed in the Monopoly bulletin are the ones they used in TSPP from the factory. It must not have taken care of the issue. I'm considering soldering up some more of these Resistor Potentiometers if anyone is interested.

I'd be interested

.

Was this ever confirmed to work with DE games? My JP is pretty hummy.

No, DE boards and SEGA (whitestar) boards are very differents.

Pinball Life sells the Rottendog Buzz Buster which can help on later Data East games.

I'm still making these if anyone needs them in the future. Direct message me please

Has anyone looked at the schematics and done the math to understand the "fix"? I thought I understood amps, but what I'm figuring doesn't make sense. In the Monopoly game, both R106 and R110 are a 22K resistors. By making R110 a 33K resistor you are increasing the amplification for speaker 3(cabinet) and by changing R106 to a 10K resistor you are reducing the amplification for speaker 2 (back box). I don't understand why they are increasing the amplification on one and reducing on the other, seems like you would want to reduce both.

You are clipping a 5K resistor in parallel with a 5K resistor, the new value of the combined resistors is 2.5K, not 10K.

I tried this fix with my TSPP which already had R110 at 33K (parallel 5K pot makes it around 4.3K) and R106 at 10K (parallel 5K pot makes it 3.3K) and I think it worked with the backbox speakers but not the sub. Adjusting the pot up to 10K for R110 (effective 7.6K) doesn't help. I'm wondering if for the sub the effective resistance needs to be higher than is possible with the parallel 10K pot.