Hey everyone, I thought I would throw an issue out there as I've tried as much as I know about to fix it with no resolution. So I have an original 1979 Galaxian. Turn on the machine without the pcb and it shows up, bit of burn in but works and switch it to test mode then the RGB line down the middle of a black screen shows up so guessing that's a good thing. Well I bought a refurbished working PCB and tested the slot pads where the connector goes. It says A on one side and Z on the other end. It was reading 4volts. I think I read it needs to be 5v but I have no idea how to change that. So I turn it on with the board connected, then the sound pot on the pcb works but it is a loud buzzing and scrambled screen. I tried setting dip switches to various free play and bonus settings with no luck. There is a 6th dip switch that does nothing I'm assuming. Also, another thing I tried was the fuses on the transformer board. They all work but one, but that one has black wires going in and out on both sides so guessing it's a ground passage? I'm sorry but I'm amature at best when it comes to repairing these. I know a little about electronic repair but this is all foriegn so please feel free to point out the obvious or any new suggestions. Thanks guys!
