#393

what compatibility are you worried about? Why are you worried about compatibility?

The Berlin Modular build, from what I recall, mainly just adds a sensible power filtering cap, a Euro power circuit, and that’s it.

#394

Yeah, I think I didn’t use the correct term in my question. What I was asking was, if someone would know if the Berlin Modular build is somehow different from the 16n. I wanted to know if future 16n updates would work for it too. Assuming that the difference in these boards is a power filtering hardware change then this would not the case. Thank you for the reply.

#395

yep, from what I know it uses the same old firmware, and should work with the 2.x.x line of firmware just fine.

1 Like
#396

Hi everyone, great thread

I bought a used 16n off of reverb for a steal with the idea that I would repair it.

As the listing stated, faders 2 and 15 are non functional. I’ve cracked it open and noticed the following issues and any help would be much appreciated!

Issues:
Faders 2 and 15 output nothing, no usb / midi or CV
Fader 6 outputs usb / midi but no CV
Fader 16 was jumping from 0 to 70 when I would wiggle it but now is stuck at 70
The soldering wasn’t too bad but the Multiplexer saw some action, a few of the pads on the board on the left side were missing and solder bridges were created to the probe points.

Actions Taken
I’ve reflowed the faders and that one CV jack
Cleaned up the Multiplexer and ran some small jumpers to traces I exposed
Reflowed the Opamps

It is usable as is and was a good deal but it was a personal goal to fix it :sweat_smile:
Any help would be great! Love this site, you all do such great work.

-AC

#397

pictures would help.

non-functional faders might be physically broken. see if you can get a meter measurement of the individual faders. You might try desoldering one and testing it. (the carbon track or whatever inside the fader can get broken from pushing too hard on the tang)

for fader 6 voltage, check here (and/or also look at R6):

Screen Shot 2020-07-05 at 12.02.52 AM
Screen Shot 2020-07-05 at 12.02.52 AM750×317 16.4 KB

1 Like
#398

Legend! Thank you so much
Touched up that path for the CV on Fader 6 and voltage is back.

Removed Fader 2 and 15 and they were broken at the base and falling apart :exploding_head:
Going to replace Fader 16 as well for good measure
Thanks again, ya’ll are too good

1 Like
#399

I recently built a 16n and am having an interesting problem. The faders work if all of them are around 50% and above, but if one of them goes below this threshold, it immediately goes up to 127 and all of the other faders move up as well. I looked on this thread and it seems like other people have had similar problems, but as far as my eye can see, everything has been soldered pretty well. Not really sure what I have done wrong, would love some help!

Video: https://photos.google.com/photo/AF1QipMTjpkdXrMoeIGj1jeTIfHL69RVajA4eVIr72Hq
Photos: https://photos.google.com/photo/AF1QipMPPdvD_CJdDTnOBgiU1amk00XTi6EcSXMlmwGf
https://photos.google.com/photo/AF1QipM_ngaKQFcL609_AzIl6UZ7k0nyFfT_chxsWHta

#400

Have a freshly built 16n and am having troubles with slider 6. Was showing no values in the web config page, reflowed both UC1 and UC4, checked its solder joints and still got nothing.

Today, i tested it with Norns and was successfully able to map slider six to a parameter and was getting full responsiveness from it, which i thought was odd. So i connected it to the web config page and still got nothing. I changed the Midi Chanel and cc numbers (which should have no bearing).

Plugged back into Norns and slider six is no longer mappable.

Any ideas?

#401

I have the same problem as AndersSkibsted. Fader 1 sends CV but not MIDI. I reflowed the fader and the pins you marked out on both U1 and U2. Nothing. Could the problem be on the teensy?

#402

probably not? If other faders are working, then I’d suspect the mcp6004 (U2) connections or the MUX (U1). Fader 1 is marked “1” in the image posted above. Make sure that pin connection is good and then those bottom pins on U2

#403

Yeah I reflowed all of those twice now. Checked for shorts between those pins as well. Any place I should check further down the line? Thanks btw

#404

So I had the same problem on slider 6. I swapped out it’s IC and now all is well.

#405

That’s the conclusion I’ve come to as well. Thanks

#406

Completed Berlin Modular build and I’m happy with the results. The 2.0.1 firmware is up and running and midi over USB and 5v over jacks are working well. I still have some testing to do but no issues so far.

2 Likes
#407

Would it be possible that the 2.0.1 editor could be included with a tool what would allow constraining CC values (max&min)?

#408

Well, next session and fader 6 is back to not working over usb. Back to the bench it goes. Although, not really sure what to try next.

#409

it might be the mux, but check a) the MCP opamp that fader is connected to and b) all the passives around it. The CV outputs are literally straight from the fader via a buffer (one of the opamp cells in the chip). The current going to the mux, and then the MCU, is divided down by the passives (5.6k/10K) and another op-amp cell. So check a) the chip and b) the relevant resistors for that voltage divider. There should be a PDF schematic on the Github site as well as the EAGLE files.

#410

I posted in the diy norns thread, but when i power up the shield with 16n connected, fader 6 is not responsive. If i plug in the 16n after it is powered up all seems well. So for now I’ll just plug it in after powerup.

#411

Hello, just finished my 16n and am very excited to make music with it - as always this place is amazing, and I could debug everything just by reading what other people already had encountered. Now everything is working it seems, but I then have a question: what should I do to be able to work with 14bit MIDI? I am working on a project based on musical gesture, and precision is key there. I know the faders are short for such a purpose, but I would still like to give it a go. The idea is to send fader1 to CC0 and CC32, then fader 2 to CC1 and 33 etc. using MSB And LSB. Also, I haven’t read anything yet about such an idea, but has it already been done?

Again thanks, this really is a beautiful project.

#412

i’d like to know that as well. But having recently thought about a few “single-fader” instruments, i also realized that 7 bits on 60mm faders mean less than half a mm between each value, which i think is already under the physical precision one would be able to attain given the friction on the faders.
Nonetheless i’d give 14 bits a try just to see if gestures translate differently.