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You are connecting high voltage for the old backlight to the LED! It can damage the LED! Just add 2 wires from pin 1 to pin 16 and pin 2 to pin 15 so the LED backlight gets 5 volts. Series resistors are already on the PCB. Remove the old backlight wires.

I'd be running an oled from the gotek onto the top, since it's the main mod that will unlock practically unlimited storage

To answer your question about the jumper, it's due to one of the final board revisions. This surprises me a bit because the white ones were the final batch. It should have had the latest board revision which didn't require the jumper wire. These were manufactured by Gibson after they bought Oberheim. They may have thrown an old board in, or it may have been transplanted from a black one.

Enjoying your vids, but man, you really need a quality solder vacuum. A Hakko is a game changer. It will significantly reduce your stress level removing components

I also have a DSS1, we should do a duet on them!

You should do a Juno 106 and Kurz 2000 AND a Yamaha DX21 refurb video. I might know someone……

Nice presets, unfortunately the link didn't work for downloading patches, can you make it work?

What are LED sliders? Nevermind you answered it right after I asked. But what's even better is putting clear rubber caps over the LED sliders.

The parts you want to look for are "Key Bushings"

Wish I still had mine! Great video!

Great vid! For those who are looking for the entire factory library (including the catalogue) just copy paste this into google search: Korg DSS-1 Factory Library for Gotek Flash Floppy HxC owners

As a Gen xer, although I've never owned this sampler, it was reasonably well known about, at least back in the 90s. It was definitely a sales flop, being expensive, not an Akai, physically massive etc. But these were great sounding machines, no doubt. The Roland S-50/S-550/S-330 are from around the same time. I owned a Roland S-330, great sounding, lofi, crunch and warm, all in a 1RU format!

If you do a lot of work on keys like those, look into some dental tools. They're great for getting in tight places and scraping gunk off old contacts.

@18:00 You're calling the connections "bottom" and "top" in relation to the camera (and you), when the text on the board is upside down. That might confuse some people.

nice!

You can add Lorn to the list of notable users!

It shares much of the same dna with the DW8000. Not sure if the filters was the same but they kinda used the same tech making the Wavetables for the DW8000. One funny thing is some of the sample disks from the DSS-1 is converted from 12 bit to the 16bit format of the M-1 and T-series, hence some people bashed the M1 somewhat because not all samples was "true" 16bits but its also some of those gritty sounds that gave the M1 some character even it was fully 16bit digital. The DW was a great hybrid Synth btw. I kinda wish if Korg ever will make a new showstopper Synth to replace the KRONOS, that they would re-introduce a true Analog filter section. I remember the DWG Wavetables never sounded as good in the M1/T3 nor in the Kronos. That Analog filtering is what makes the difference.

I had a DW6000 and absolutely loved it. I also had a Roland Juno 6 but felt it was a one trick pony, everything had that same sound. The DW 6000 really is a true underrated synth. Loved it!

Love these videos on those old synths from mid 80s, I remember this when it was new as 1986 was my into to the synth world and all the magazines like SOS and E&MM at the time... there was basically this, the Sequential Prophet 2002, the Roland S50 and the Mirage as well as the Akai S series which was becoming more and more prominent. It was big technical evolution because us normal guys could just about afford these keyboards as opposed to the previous generation of Emu/Kurzweil samplers... Adding those Gotek drives and have access to libraries sounds like a great idea.

I DO NOT understand why we had no compact & cheap keyboards (or sound module) which could use custom user sounds (like SoundFont format etc). It could be hot device, since we all want our custom keys, and favorit sounds. And of course nobody will carry such monsters from 80th. This is the Real secret.

Yo! This one evaded my attempts to uncover all the looked-over , disregarded synths w analog filters after I got the jx-8p which like dss1 looks like total snoozefest of early digital crap. Now everyone has realized this about the jx8p, I wonder if DSS-1 can possibly be found at non inflated prices…?!

Perfect timing. I started upgrading my DSS-1 this week! Many thanks.

I've got one and i love it. It's my dream to have an usb substitute for the floppy, but i'm asking how can i transfer the original floppy disks to the usb key, for i don't know if they're compatible with Windows system, to copy them through a PC

What are the remaining components on the EL backlight inverter board for? You went from EL to LED backlight which only requires DC voltage.

Just a thought, Regarding the scratches. Can you get a grey coloured Sharpie to touch them up? Even if it is the wrong shade of grey, it might make them less noticable. PS: I got a pack of coloured Sharpies off of eBay, they are quite cheap, so no real loss if it does not work.

Definitely going to get a Gotek for my DSS-1

Watched the whole thing bro. Am never going to get a dss1. BUT, I do have an eps16+ And they are not that far apart. Every few years, i have to strip the keybed for a good clean. (It doesnt get used much) i am trying to find a way to get my library off my syquest 135 scsi to put on thumb drive so i dont lose 30 years of samples. 😓🤔 Any tips? 🇦🇺🍻👍

Nice work! But what about the jumpers on the Gotek, did you need to set them in a particular way for this machine? (I've a mixed experience with theses Goteks, on a Yamaha SU700 it was perfectly fine but I've never achieved to make this to work in a Akai S1100)

I had a chance to use one at church. Great keyboard.

Nice. Can you post the sysex file somewhere for others? Thank you.

I have a DW-8000 with the opposite problem. My main output jack doesn't work, but my headphone output is fine. Do you think the op amp that you replace also has something to do with the main out as well, or is there perhaps another separate op amp the main out?

If I may give you an advice, DON'T put circuit boards over your keyboards (panel and keys), watching your previous videos I noticed that you tend to do that. As you already know PCBs are full of pointy solder joints on the bottom, where the components' pins are, one bad move and you would end scratching your precious instrument. And if the device is not yours but one you're repairing for another person, that's gonna be a very, very big problem. If you have to do that, put something like old newspapers underneath the PCB so that it doesn't touch the surface you're putting it on, and you're good to go. Preferreably don't use plasticky things like bags, bubblewrap, etc as plastics often tend to build electrostatic charges which are bad for ICs.

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I just bought that same oscilloscope to fix my juno 106 :) def worth it!

So good, I love the dw8000, im legit sitting next to it in the studio... Korg really should do another fullsize run of the dw8000, multi timbrality would have been really the only thing i would want added, along with sick surface controls obviously.

Subbed.

hi i got a question i hope u can help me because i really don't know how to start , everything works except for Yes Button

Nice work ! Pretty much what I do when rebuilding.

I watched your two videos about this repair, I also have a DW8000 and I love this instrument, your step by step was very interesting and instructive, I also do my repairs and I say that I am not a 'mega technician', I am like you, I do my trials and errors and try to find someone to blame for some defect. Congratulations on the video

too bad the digital oscillator/analog filter concept wasn't explored a little longer. it had a brief window in the mid 80s, then affordable sampling came along and that was that. this was really the last period of real synthesizers.

Sounds like we will be there for a few hours and then we can catch up ⬆️ the sounds

Great work - had one of these from a fire damage sale and it had issues different to yours but still took a while to get it there. Having a 2nd working unit to reference is invaluable. And yes the keyboard assembly/disassembly was a royal pita. But I now have two working so can stack or run them in true stereo for that huge Oberheim sound.

Loving these videos man!

Nice work! I just recently reacquired my Oberheim Matrix-6 keyboard and installed all of my old patches on there. I'm running through a Boss Super Chorus CE 300 and a Bigsky reverb unit and my OB-6 is getting a bit jealous. Thanks for this great and informative upload!

great vid. Incredible that the buttons work. I find old synths with sticky buttons so often

You should have used solder wik that sucks the solder up. That way you could have replaced the LCD's in a flash. even if they where not defective. But you also should have removed all those wires prior to that. to prevent all that damage. These displays almost never fail, it's the wiring or the drivers (IC's)

Interesting video - congratulations on the repair. I suspect that another problem that may arise with equipment of this age is the electrolytic capacitors - it is best to preemptively replace all of them so that they do not spill and cause more damage in the future....

I though you can't fix it, good job!

Great sounding synth.

Wonderful machine. I remember playing it in the shop where I got the DW 6000 - couldn't afford the 8000 so bought the baby brother. Thanks for the memories. Still have the 6000 but can't remember when I last switched it on.