I picked up this gladiators from a friend of mine locally that has had the machine for years. The game used to work as I played it at his home last year. The game was moved at some point by the previous owner and the head was taken off to move it. Upon reassembly he told me that he got two plugs crossed up on the boards. He said there was a huge puff of smoke when he powered it back up. He realized what plugs were crossed and put them back but the damage was obviously done. It burned the 20 pin ribbon cable connecting the driver to the cpu. I replaced the cable and am attaching pictures of what the game does when powered on.
Obviously there must be some serious board damage. I am pretty good at doing the repairs but am not very familiar with gottlieb at all and this will be the first system 3 I’ve had to repair. That being said I am needing some help on where to start. I do not have a manual for the machine so no schematics. I’d greatly appreciate some nudging in the right direction as I know most of you guys know way more than I do.
I am attaching some pics and can take any more that need to be taken. The plugs that were crossed were j1 on the power supply and p1 on the driver board.