Treadmill buttons not working

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Sep 26, 2019
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I have a Nordictrack 1750 commercial treadmill that's less than 3 years old, and for the 2nd time in the last year all of the buttons have stopped working. Last year Nordictrack sent me a new console that solved the problem, and now 9 months later the same issue has occurred again on the new console.

The console has 2 sections
1) a touchscreen - all of the functions on the touchscreen work fine and the treadmill responds as expected (e.g. speed, incline, running programs).
2) "soft" buttons placed around the outside perimeter of the touchscreen. There are about 25 "soft" buttons for various speeds, inclines, start, stop, etc., and none of these buttons work except Start & Stop (marked by arrows in attached image).

What I've done:
I removed the console and visually examined the control board on the backside of the console but I don't see anything burned out.
I removed the overlays on the front of the console (the labels for each button) as I had read elsewhere that this solved some treadmill button issues. It didn't solve mine.

Thoughts/questions:
  • Each group of "soft" buttons are fed by a ribbon cable, and there are 4 different ribbon cables (circled in attached image). All 4 of those are non-operational. But, the Start & Stop buttons work, so I'm not sure why those work and all of the others don't. In addition to the main control board there's a separate small control board, maybe that controls the Start & Stop buttons? That could explain why Start/Stop work even though nothing else does.
  • How can I determine what the issue is on the control board? Can I test continuity or something?
Nordictrack has been useless. And even if Nordictrack sends me another console, I don't have any confidence that the issue won't happen again since the same issue has occurred twice now, on two different control boards. I'd like to avoid filling landfills with nearly-good consoles (they're huge!) if it's a fairly simple repair I can manage.

Thanks in advance for any suggestions.

[fixed] View: https://imgur.com/CYqjQxj


[/fixed]

[fixed] View: https://imgur.com/KjW49WB


[/fixed]
 
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