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 Post subject: MK119 Roulette kit
PostPosted: Thu May 18, 2017 2:14 pm 
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Joined: Thu May 18, 2017 2:00 pm
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MK119 Roulette.
I have a problem with one of these kits. Numbers 5, 24, 16, and 33 do not light up. 5 of these kits were built by Yr8 students and all others work ok apart from this one. I have checked polarity of LEDs, swapped the I/C with one of the working ones- still no luck, checked tracks and for shorts. I have also noticed that as the sequence goes round on pressing the button it runs 1, 20, 14 then 1 and 20 light again! Any ideas please before I loose what little hair I have left!!


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 Post subject: Re: MK119 Roulette kit
PostPosted: Tue Jun 13, 2017 1:40 pm 
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Velleman Support
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Joined: Thu Dec 26, 2013 12:42 pm
Posts: 694
Could you post pictures of the PCB(top and bottom side)

Best Regards,
VEL337


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