Korg SR-120 MiniPops Drum Machine Repair

[@toyd3sert434]

Synthesizer Keith is back!! 🎹 ⚡️

[@ezzong]

Oxygene was one of my favorite albums, so the sound of this drum machine is so well endeared to my heart.

[@thecombine10]

Great video, Kieth! Hope you get the chance to make some more!

[@markjeffery3237]

Excellent work as ever - and great to have you back Keith! Cheers from Aberdeen 👍🏻

[@krmelectronics]

Thanks, and hello from Canada.

[@alphabeets]

I love your videos. I hope you will do more!

[@krmelectronics]

Thanks alphabeets.

[@samburns6120]

amazing, this was the exact problem my minipops was having, it had the same corrroded trace, jumped it and now it works perfectly, thank you so much for posting this. would be interested to hear more about modding it for external clock

[@krmelectronics]

Hi Sam. I'm glad my video helped out.

[@gear7057]

Great video, I appreciate how you explained every step in detail. I'm wondering--what material do you use for the dust barrier for switches? Neoprene?

[@ludwigmuller2023]

So cool that you're making videos again! Love your approach! Greetings from Germany :)

[@krmelectronics]

Thanks for the compliment. Hello from Canada.

[@justindpeak]

Glad you are back, awesome video as always!

[@krmelectronics]

Thanks Justin.

[@lascheque]

Glad you're back! Great video, thanks! I love those old drummachines, wish I had the money and space to collect them :D

[@krmelectronics]

Thanks for the compliment. I'm glad you enjoyed the video.

[@mastercylinder1939]

Great job, fantastic video.

[@tyhodson]

Always love your videos, Keith! I’m curious about why you cleaned up the corrosion before jumping over it. Does it stop it from spreading? And two product questions: 1) Where do you find the dust barrier fabric that you used for that switch? 2) Was that just regular ol’ wood glue that you used on the knobs and the Tolex? Thank you- glad you’re back!

[@krmelectronics]

Hello Ty. Glad you like the videos. Regarding the trace repair, you are correct, if you don't clean up all of the corrosion it will continue to spread. I'm using heavy card stock for the dust barrier. And yes, it's just wood glue. For the Tolex it was perfect, because the case is made out of wood.

[@tyhodson]

@@krmelectronics Thanks, Keith!

[@bengarland]

Dude your videos are great. Please make more!

[@krmelectronics]

Thanks for the compliment BC Land.

[@TheMilford]

That’s the Krautrock edition. Don’t fix it!!!

[@jeffreymoore2730]

Very helpful video. When you're working on something like this, would you routinely update the PSU caps? Also, any idea where to find those knobs with the aluminum trim? Where are you based?

[@krmelectronics]

Hi Jeffrey. If the power supply caps were bulging, or very old, then yes I would replace them. Regarding the knobs, the only place I know where to get exact replacements is from other broken Korg gear from the same era.

[@krmelectronics]

I'm based in Toronto, Canada.

[@RossTotino]

Excellent video. Very informative.

[@krmelectronics]

Thank you.

[@RitualElectronics]

Welcome back 🎉

[@krmelectronics]

Thank you!

[@forgivemeforihavesynthed]

Hey Keith ,Any slim chance you are able to back up your EProm ? I have an SR with a toasted IC …Seems like a few folks in the same boat :( Thanks for the great vid cheers Craig

[@djm384]

Hello, Nice troubleshooting video and music guitar with this drum machine ! Did you ever find two big connectors inside her sister, the mini Pops 120W (W for WOOD) ? it is what i found in one i bought in a garage sale.

[@capopale]

Hello i have the same problem on my minipops; why do you remove the green capacitor ? Thanks for this video !

[@krmelectronics]

Hi Mathieu. I removed the green capacitor just to make it easier to work on the PCB. It was in the way. After I fixed the trace, I soldered it back in.

[@capopale]

@@krmelectronics OK thanks a lot !!

[@alphabeets]

I love your videos. I am wondering about the black screen in the video between edits. I’ve seen this on other videos. Is this a new “feature” in some particular video editing software? (It’s kind of seizure inducing.)

[@gorsefan]

Yay welcome back!

[@krmelectronics]

Thank you.

[@shiftedphase]

Nice!

[@samuelbiggs6044]

Do you have a repair service? Where are you located? I have a similar machine that needs fixed. Thanks!

[@jdanielcramer]

2:08 is when the Beguine was supposed to Begin. 🙃

[@krmelectronics]

I saw what you did there!

[@jdanielcramer]

@@krmelectronics 🤣🤣🤣

[@ThemFunnyLookinGuys]

Please tell me you eventually removed all those Matsushita caps! Everything I come across with them still in place is grounds for a complete recap, they are all starting to fail

[@themetropolitains]

Hi I have a Roland CR 8000 modified, it needs to be fixed. It plays the same sounds over and over again, I am based in Los Angeles but looking to send it anywhere in the US really to fix it . Thanks a lot @synthesizerkeith

[@krmelectronics]

Hi Charles. I'm based in Canada (Toronto), however I'm sure you'll be able to find someone in LA that can work on old synth gear and drum machines.

[@cannadineboxill-harris2983]

Hi There my name is Mr Cannadine T. Boxill-Harris, how have you been Keeping up to Lately, I was wondering if you need to do the other way round Lyrics in you’re own word Lyrics but sing it differently in the original Extended background Versions of those Particular song’s By Andrew Gold and The Korgis, Never Let her Slip Away and Everybody got to learn Sometime, why don’t they just Replace the Synthesizer String Sound to a Two Musette Accordion’s sounds and make this Musette sounds for the Two Accordion’s 2 to 7 and a half times more Deeper then the Original Synthesizer String Sound that they have this Particular song called Everybody’s got to Learn sometime and also Replace the Xylophone Sound to a 21 Times More Deeper Chime Bell or Even a 26 Times More Deeper Still Drum Sound, Because it is Still one of my Very Very Very Very Very Very Very Very Very Very Very Very Very Very Very Very Very Very Very Very Very Favorite Song’s Ever Since I was about 10 Years of Age Thank You and I Like 👍 you’re Remixing and make you’re singing 4 and a half times more Deeper Please XXX