Without a meter it's hard to tell, but I'd be willing to bet something is off with the meanwell. Either it's wired wrong, or it's -12v rail is grumpy.

FYI- I'm not sure where you're at, but I use a multimeter that I got for 6$ for my DIY stuff.

What are you using for the wall power? Is it a wallwart, or something else?

Forgot to mention- Parallel would be if you wanted to create two different supply voltages- like +12v and +5v, but with no negative... just the positive and ground.

What I'm wondering is about running it all for Eurorack - I imagine I'll run the two 12V channels in series and treat their junction as ground, right? Then, can I then connect the 5V's negative pole to said ground to make sure they all have the same ground? I'm new to bench supplies but assume that...

There was this a while ago, but it fell off the map:

https://www.modulargrid.net/u/other-unk ... ouchplate-

Yes! Any estimate on cost of the boards?

HR3 Clubnight mixes on tape wasn`t less party than being in the club on the dancefloor. Was in college from 94-98, and a friend of a friend got me copies of some of the HR3 clubnight mixes on tape. These got me through a lot of hard times. I know they have an archive someowhere... I should go downl...

You'll never go wrong with using a higher than planned voltage rating- ie. 50v in your question above. Also, depending on the circuit, it's unlikely that you'll have a cap that is between a 24v swing (+12-> -12), but your logic is sound. If you go with 50V for everything, you're unlikely to have any...

If we want to buy just the case, is it possible? If so, what would be the cost?

Ok- so that rules out the jacks. It might be one of the op amps on the incoming or outgoing signal. Do you have a picture of the interior?

If you have the Activate switch off, does it pass through the original signal? At the same volume?

You might be able to grab it off archive.org? I just tried, but their page is not working.

FYI- Modular addict is definitely up and running. Just got an order from them in the mail on Saturday.

Batchas- the ones I got for my MidiALF sequencer have you buy/install the led separately. I don’t think they come as one unit.

Glad you found a solution!

Not exactly the same switch, but these are kind of close?

https://www.digikey.com/en/products/det ... gCIgC6AvkA

it's probably a variation on this part.

Not the full 909, but I got a sequencer pcb (plus components) from him a while ago. Well packed and looks great!

To fix something or build something? And where are you located?

This is a set of 4 pcbs that can be used to make LED ring type controllers, plus 5 midibox pcbs to make it work (DIN R5, DOUT R5, MBHP_AINSER64, 2xCORE_LPC17). Also included is some resistor networks that I think are part off the midibox pcbs (I haven't checked). Nothing is soldered in to any place...

Guess I figured the manuals online wouldn't have screw sizes for whatever reason. Lesson learned. Some do, some don't. I like the ones that mention all the physical components, because sometimes you need to replace some plastic part, and it's easier when you have the exact part # :) Good luck fixin...

Service manual here shows the sizes on pages 12-13

http://manuals.fdiskc.com/flat/Korg%20D ... Manual.pdf

Also this might be useful:

http://www.korgforums.com/forum/phpbb2/ ... 9adbb5787a


Looks like they're all various metric sizes

To the OP- these are good articles to read on soldering/wire joining:

https://nepp.nasa.gov/docuploads/06AA01 ... 8739.3.pdf


https://nepp.nasa.gov/files/27631/NSTD87394A.pdf


Note- these will make you cry

I don't have one of these, but what's going on here?

Is EMS still a going concern? Considering their front page states "Front panels for some modules are low until the next batch is available at the end of 2019."

Based on how the logic is explained here on pages 3+4, it looks like you have an issue around the DAC network:

https://www.paia.com/manuals/docs/9308- ... manual.pdf

I'm not an expert on this, but I'd check the solder joints around IC9 (CD4052) first

looks great! How small are the SMD DACs? 0805? 0402?

Quite possibly the trimmer. Does it bleed noise even when fully closed? Also, can you verify that it's the same kind of pot on channel 4 as the other ones?