Edit: Removed video from youtube. Seems the problem was most likely a bad fuse.

Hello Just Friends users. I recently purchased a Just Friends and am having a problem with it. In sound mode it will play okay for a few minutes and then it just dissolves into a bad sounding static like sound. Has anyone experienced this? Here is a little video. You can see at around 1:50 it happens ( sorry for the annoying sequence/melody)

The shift in sound at 1:50 and following seconds is pretty dope! And it resolves in to a minimal lo fi glitch beat on its own :slight_smile:

Sorry I cannot be helpful, I hope you get this sorted painlessly!

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This exact thing happened to mine, it was an issue with the fuse. I replaced the fuse and it’s been running fine since

Great! Thanks for the information. Much Appreciated. :grinning:

I’d get in touch with Trent at mannequins before, but my module made the exact same noise, played fine for a while then did the exact same as yours.
Trent said it was an issue with the trogotronic power putting out a bit more than 12v and tripping the fuse.
This is the fuse part number: https://octopart.com/prg21bc2r2mm1ra-murata-17935733

This is the fuse:

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So I ended up returning the Just Friends and am now purchasing a v1 from the trade world of lines for much cheaper. Good to know about the fuse in general though.

Hey could you expand on the issue with the trog power? I’ve been considering the JF for a bit, but my main case is trog powered…

Apparently the trog can output a little bit more than 12v sometimes, which was tripping the fuse and causing this strange behavior.
From my understanding it was more an issue with the fuse than the power. Once I replaced the fuse with the one I listed above it worked fine and has since

I’ve been using a trog supply with an OG JF for a while with no blowups but this is good to know!

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I’m having an issue with my JF, 3n and 4n lights are always lit and will not change no matter the mode. I’ve tried re-upping the firmware and it persists. Anyone experience this?

Edited to say I can “fix” this when I plug a dummy cable into the individual 3n and 4n outs. @Galapagoose have you any ideas?

If anyone is interested, the main synth on this song is the sound of 2 just friends FMing each other.

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My JF seems to be “stuck” in synth mode after using it with crow.

When sitched to shape/cycle it isn’t outputing free-running LFOs as expected. Instead it seems to be outputting the last voltages played buy the individual voices.

Am I missing something glaringly obvious? Do I need to unplug the i2c cable whenever I want to use JF’s standalone functionality?

Not at all. :slight_smile:

Try power cycling your JF, or issue a ii.jf.mode(0) via druid or, if using norns, the maiden repl.

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Ah that is good to know! Especially that it can be forced out without power cycling via druid!

had a quick question about i2c with jf…

i’ve got jf and crow right now, connected via i2c. i have a teletype on the way… can i connect both teletype and crow to jf? i wouldn’t try to use both at once, i just want to know if i can leave them connected so i don’t have to switch them based on which leader i want to use.

jf has two sets of 3 i2c pins so i’m not sure if i can use it as a follower on both sets.

Yes, I use this setup and it works great. The only time this might misbehave is if you send messages from both leaders simultaneously, in a lot of my testing this works basically fine but there’s an increased possibility of missed commands or even module lock-ups requiring a reboot. In practice I have not seen a module crash in quite a while running up-to-date firmware for everything, with the possible exception of some occasional W/ freezes that I have not been able to conclusively pinpoint to being I2C related.

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great! that’s good to hear. i’m not interested in trying to use tt and crow at once… i’m just lazy and don’t want to have to open the case up just to switch i2c cables! thanks for the info.

Something to remember if you add more followers:
the issues on a multi leader bus can happen even if the leaders are sending exclusively to different followers. It’s best to split the bus up if you have stability issues. JF is one of the less-stable followers, unfortunately.

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good to know! thanks. i’ll expand eventually, so i’ll keep that in mind.

had a blast playing with just type today! switching between a pair of patterns in teletype, light audio-rate modulation of ramp and curve provide some timbral variation, time and curve are played by hand to build some swells, and everything’s mixed together with 3 sisters

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