40x repair

[Bronco]

Well I have 2 dot machines
Both used to work
Then one just gave a bong every second on start up
I was swapping cards between to diagnose if if it was a power supply issue with one of them
And then could not even get the working one to not do the bong repeat bong
I have one board that will now light all 6 lights on pcb  and another that will flash the fail light very faintly every couple seconds.if I put a ram clear chip in the pcba the fail light will not blink on the one pcb but on the other pcb it stays lit. Did I somehow manage to screw all my EPROMs and or kill some boards?

[Bronco]

I know these are not very sought after old slots and parts are not readily avaliable  but does anybody have any opting or option that I may try.....or is there anyone that can test , repair or have pcb EPROM etc for theses machines. Can post pics of status leds. Or videos of boot up for further help. Many regards