I am not sure if I understand the system test exactly but,
there are 3 buttons that won't display white, yellow or red.
Those same buttons will display all the other colors.
Yeah, that's probably one of the LED driver chips. Pretty easy to fix. If you're in the US, email to support@rjmmusic.com and we can set up the RMA. We have a small number of other places around the world that do repairs for us if you're elsewhere.
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