Hello
I am repairing a large led sign for a local fire fighter it is the old one that used to hang in the station. I have found a faulty transistor, some control boards that where shorting on the main led matrix. The part where i have gotten stuck is i think i have a fault with a shift register but i am unsure on how to test it. And if anybody knows why it is starting from the middle of the matrix i am looking for ideas.
thank you
I am repairing a large led sign for a local fire fighter it is the old one that used to hang in the station. I have found a faulty transistor, some control boards that where shorting on the main led matrix. The part where i have gotten stuck is i think i have a fault with a shift register but i am unsure on how to test it. And if anybody knows why it is starting from the middle of the matrix i am looking for ideas.
thank you