For the best long-term fix, I recommend replacing the contact strips with these: synthchaser.com/product/key-contact-strip-set-for-sequential-circuits-prophet-600-10-pieces/

For the best long-term fix, I recommend replacing the contact strips with these: synthchaser.com/product/key-contact-strip-set-for-oberheim-ob-8-10-pieces/

Absolutely fantastic video. Has given me the confidence to try this on my new Prophet where about half the keys aren't responding.

Thank you, now I have the confidence to stick that new bad boy in there. I noticed you used and engraver pen to undo the old solder joints. Was this so you wouldn't use to much heat?

Brilliant video.

Great vid - how funny it was the bloody cable lol

Hey there, im trying to build a custom keyboard chassis and your videos really help me understand how they are constructed 😊.. Of the synths that have the keybed atached to the base plate, how thick is the plate? Is it steel or aluminium? I want to find out if i could get by using a 2mm aluminium base plate bent into an L shape, forming the base and the back.. Its only 23cm wide but 1m long.. I guess 2mm steel plate or even 1.5mm steel plate bent in the same way would do the job but i want to avoid painting for corosion protection as i want to make it chemical free, no glue, or syntetic finnish on the wood etc..

Hi, thank you for de video. Is there a better option to tantalum capacitors nowadays ?

That synth is no good and you are a terrible person. How do you live with yourself. For starters, you need to pack up and move so that you are close by me.

I have some nice mods for the Emulator II you would probably interested in.

You can get one for $1500 used

Hey Hey! I've been looking for years for Help with my Drumulator! It is precisely that mod - it switches memories but never noticed different bank sounds. I just want to bring my sweety to her old ,agnitude - no funny, unnecessary mods. I even can't control or understand it! HELP|

very good video I only have one problem I have changed the battery for a new one but the message CHANGE BATTERY still appears I don't know where to start or what to do has anyone solved the problem in some way?????

Dear Synthchaser, is there anywhere to find the resistors array values? i can't seems to find the values on the service manual. for example you say in your video (10:33) that you've checked the resistor array an they're ok. thank you!

absolutely stellar. great deep dive into all its functions--I've seen no better informative demo on this. excellent edit

Flying spaghetti monster

A number of people have asked for an Emulator III power supply, so I've made one! synthchaser.com/product/synthchaser-e-mu-emulator-iii-eiii-replacement-power-supply-100-240vac/

I really like your trend of creating replacement works of art to keep these synths alive.

The good: Synthchaser put out a new video! Yahoo! The Bad: It is only 4min long. 😢 Now I have to wait for the next one.

FAAAN-TASTIC Man!!! That's a great little repair 🙂

I'm about to make a power supply for my alesis fusion for similar reasons. They are a known failure point, are inefficient and were bought in ready made. I've managed to fix and slightly modify the existing one but i think I'm going to replace it with a pico atx supply and a 12v power adapter housed internally. This will do away with the fan to make it silent alongside the ssd. The only hard part is the power loom is soldered to the supply so there's no easy solution. It's either solder it or make a new loom. I may need to add a boost converter for the lcd too as IIRC it's -16v. No small task, but it will be much nicer silent.

Great work bro. Another one saved...

Awesome! I’m going to have to dig the Emulator out again 😂

Superb work…. Please do one for the Emulator Iii next ?

Yay! This might just have me confident enough to start using my EII live. Love that even a ding dong like me can figure this one out. I'll take a look at the LED replacement, though I imagine the installation isn't as simple as this one is.

Pretty sure the power supply is the weakest link on everything E-mu. All the romplers start to look like the screen is going out but it's usually just the power supply. I just had to put a new power supply in a Planet Phatt, and I have two Proteus/3s that need one. But I guess an E-mu is kinda like a 30-year-old server from a datacenter, so it's OK if they need a new power supply. I got a Proteus 2000 that actually needed a new encoder AND new cursor buttons. That makes me pretty happy that it was actually used, even if there are no signs that the guy ever edited a single preset. 😂 I wonder if Syntaur knows about these? They'd probably put them on the site. They have a ton of old E-mu parts. But not many power supplies!

Just bought one :)

Very slick. I use those mean well power supply modules for all sorts of projects.

Awesome

nice what about for an EIII as well? (not the XP)

You are an absolute boss with these repairs!

As an EE and avid synth fanatic I look forward to your knowledgeable and entertaining videos. Thank you!

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Hi. The PSU works with European 220V too?

Great video! Any chance you can make a video on an known emulator 2 issue. Sometimes the emu wont boot and is stuck in a freeze. Display shows "version 3.1" and it stays like that when trying to boot. Also when using USB drive, it just boots to "003/077" and stay like that. Whats strange, memory test i doable and after the memory says "memory ok" the emu still freezes in the boot display... PSU is new and works, memory say ok so what could be the issue?

Just discovered I still had one of these at my mothers house. It was hidden away in storage. I thought I had sold it. It has been their since 1989 when I moved out.. It worked fine when I last played it. Opened it up and everything looks like the day it was made. No dust even. No burnt spots. All original. Tried to power up and absolutely nothing happens. No lights or sound. Time to get my multimeter out one of these days.

Been a long time ago, I repaired a surface mount chip, about the same size. I Machined the solder tip down as much as I could. Made a small solder sucker. I had a really good Microscope with high lighting. I managed it. the boss was happy :)

I am def a nerd, loved it!

Quite a repair overall :)

I know this is an old video, but is there a such thing as a coarser screen for the silkscreen?

way fun!

Enjoyable, happy to carry on watching part 2

I know its 2 yrs on, but, juno's are pieces of shit. But i dont really mean that. They were not built to be the most revelled synth of all time. I have owned 2 and they both went south. 👎

7:40 reminds me of HAL and the repair scene in 2001 Space Odyssey

Thanks for the info about the alfa chip. I knew alfa made a bunch of other vintage chips but didn't know they made a 3320. That would have saved me a few bucks fixing an oberheim dx lol

You make it look so easy. Been tracking the non working kick on mine for ages and cant even get a clean read on my scope lol

Why no heatsink for your power supply design?

Amazing!

So ARP actually invtented the taptic engine long before Apple started using such a device in thr iPhones 😱