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Rgb Matrix Problems

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I built an RGB matrix that worked great until we had 2 days of rain. Now I have about 1/4 of a 50 node string stuck on white. One of the end bulbs flashes every once in a while to green or red. I am attaching 2 pictures, one of no the matrix with no signal being put out from the board, and one with a test mode.

Does anyone have any clue as to what would cause this?



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You have water in a node. Were your nodes rated ip68? If not this can happen every time it rains (especially if they were rated ip66). If the node that flashes green or red is before the stuck on ones I would start by replacing that node as it can cause problems further down the string. If it is not, I would try the first one stuck on or the one just before the stuck on ones as its output could be bad.

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I see one bad node 5 rows up between the green and the white nodes. that is the one I would check. Are those ws2801 nodes?  I had a problem with mine last year even though the said they where IP68. If you have a heat gun / hair dryer you can dry it out and try and spray some waterproofing on it. I use some silicone spray and it worked for the season.


Good luck,



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