Hello ! After few days, the bottom left encoder is failling to change smoothly the parameters for my synth, can it be an hardware failure ? 
Here is a video of the problem :
Thank you!
Looks like it. You might swap the those 2 encoders to see if the problem moves or not.
i.e. swap the 2 connectors. If the problem moves it’s the encoder or cable , if not, it’s the zynscreen, Then you can swap the cables to verify it’s not the cable. Also check the solder around the connector pins.
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I’ve had similar effects with ribbon cable connection issues, as BrainStormer says swap them around and wiggle some connectors…
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It seems like a broken encoder or bad contact. Please, re-check that the connector is inserted correctly. Also try to swap connectors and wires to determine where the problem is:
- JST connector (display)
- harness connector (wire)
- encoder
I will send you a replacement as soon as you confirm where the problem is.
Thanks!
In your case, ribbon cable is nor the problem because encoders data is transferred using the I2C bus, so a problem with the i2C bus will cause all encoders to fail, not only one.
Hello !
Sorry for the long reply … some times after this post, the encoders did not fail, and I’ve just re-plugged it and it’s failling again 
I did not try to open it, I will test it this week 
Send a full report, please.
And also a screenshot from the webconf’s dashboard.
Regards,
Hello, I’ve just moved it to my computer, updated, and encoder are working fine … I think it’s a wiring issue, maybe resolved when I moved it … I will open it 
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Then … could we think that your problem is solved?
… 
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