Hi all,

I have a gorgar issue that i'm starting to pull my hair out over.

Randomly, it seems when the machine is warmed up, when I hit the snake pit, the machine locks up on me. It's only when I hit the snake pit though, and doesn't happen every time. So far I have done all the major things ie, ROM sockets and the 6800 sockets have been replaced, the 40 pin interconnect has been replaced, re-flowed all the headers, and I rebuilt the power supply with all new caps, and I replaced the diodes on the magnet/relay.

My next step is to order a new rom set and see if that fixes things. Unfortunately I don't have a logic probe to see what has failed so I am kinda shooting in the dark. Has anyone seen this before and do you have a suggestion?

TIA Greg

The only switch that sets it off is the snake pit. I've replaced the diode on that already. Do you mean check the voltage when it locks up?

When I say lock up, it stops gameplay, and will cycle the pf lights. You have to power cycle the game to play another game.

So I want to update this thread. I haven't had much time to work on pins lately, but I finally got to gorgar. I removed the magnet fuse, and it seems to have stopped freezing. At least we haven't been able to fail it all day, and we have been hammering it. I already put a new diode on the magnet coil, so that leaves the coil, and magnet itself. I'm going to order a coil and see how that goes first, as it appears magnets are unobtainable. At least it's playable now.

I'm not sure exactly how to explain it. It doesn't go into attract mode, it will just sweep the pf lights bottom to top and everything else is locked. The displays freeze where the are. I removed the magnet fuse for now and it stops, which leads me to believe the magnet coil is the culprit. For now at least, I can play the game, and the switch still registers the snake pit hit.