AnonymousDeleted UserMay 11, 2020 at 8:23 am
The coms link is the feed to the ancillary boards, as you say you have 12v there, Iâ€™m still favouring dead boards, try disconnecting the motors from the p/s board and see if you get the three beeps? Fingers crossed itâ€™s the boards otherwise itâ€™s the main board!
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