Hi, I have a faulty printer CPU board.
I connected an incorrect thermal printhead and I think it has damaged the CPU board as nothing works anymore, even the display does not come on. I have checked all other boards on a working printer, they are ok. So it is definately the CPU. Are there any diagnostics I can carry out? Can it be fixed?
Do you require any further info off me, e.g. pics?
Please help, it will be so expensive to buy a replacement.