#1

Hey all

So I’ve just assembled my kit; cleaned up all the solder bridging so all LEDs and buttons work; but I’ve done something wrong, a column of 4 LEDs is dimmer than the rest. Any idea where my mistake might be? Thanks!

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#2

looks to me like you might want to investigate the tlc5940 chips on the back of the board, one of the legs might need to be soldered a little bit… this is potentially hard because its surface mount. you can always email info@monome.org if needed!

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#3

Are you hundred percent sure there are no bridges? even a hair thin one might cause trouble. if you have thin tip for SMD go leg by leg on the 5940, if you see like some leg could use a tiny bit more of solder add it. I doubt that anyway, i think you might still have some solder bridge around there…

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#4

agreed, check the LEDs again around the problem area.

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#5

I had a similar problem with one of my squares when I built it last week; the button itself was functioning in sum, and the LED would light up when a pattern was going through it, but not when pressed. I ended up swapping out the diode associated with that button, and voila!

#6

Sorry for the delay; real life getting in the way!

Thank you all for your help, and Brian for your email - especially while you’re travelling. Turns out that it was those LEDs - replacing them fixed the problem. I’d obviously done something that had damaged them (soldering while the monome was plugged in, probably).

Lots of tidying up solder bridges and now I have a fully functioning monome. Extra flux is a wonderful and useful thing. Thanks everyone.

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#7

hijacking for a quick question. building my kit and did as instructed and tested after first LED. it lights up as expected but I tested again after I finished the first column. only the first 4 light up. is that normal?

#8

Yes! (Post must be 20 characters)

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#9

You can see the pattern at 1:06 in this video

#10

thank you. tested and all working correctly. Had a panic for a moment there lol

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