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It came from Japan.It has a 4 led matrix and each one them have 16 x 16 matrix.I don't know much about age.And there was written MK Seiko Co.,LTD.I searched enough but that was car washing machine manufacturer.Nothing comes up searching EV431 C.Board as you probably already know. What else is written anywhere on the board? Does anyone recongnize that A+symbol on the silkscreen - is that a manufacturer? What size is the matrix? Anything else you can tell us, age, where you got it - that sort of thing? It's a puzzle.
It came from Japan.It has a 4 led matrix and each one them have 16 x 16 matrix.I don't know much about age.And there was written MK Seiko Co.,LTD.I searched enough but that was car washing machine manufacturer.Then I guess we will probably have to wait and see if there is someone who is familiar with this, or see if there are any other possible markings which can be searched.
There are no other labels on this anywhere?
What does it do when "working fine"?sorry for my wrong explanations.It's working fine but i can't send any data because of i'm not sure about board design.I have to understand deeply before trying something since it was kinda expensive.
It powering up without any problem.But not showing anything for sure.What does it do when "working fine"?