I picked up a stern trident in a trade this weekend. The games will go through the boot sequence and enter attract and then instantly begin going through the boot up sequence again. It will just do this over and over. The guy I got it from told me it did this however it started and played a few games at his place before I loaded it.

Any of you guys familiar with this and care to point me in the right direction. I appreciate it.

Both tp5 and the leg of u9 hold constant during reset

Tp5 stays over 5vdc.

I'm going to check that now.

It was tried with a solenoid board out of a working Galaxy and it still reset. I probably will end up recapping most of the boards anyway though.

I visually inspected the fuse clips and they appeared to be ok. I did not pull the board though. I suppose maybe there could be some cold solder on the back side of those fuse clips.

I will check out all of those connectors this evening.

Anything else I should be looking for?

I will try to get a quick video up later this evening after my little boys baseball practice.

It goes through the seven flashes, puts zeros on the displays and credits on the credit display. It starts the insert lights into feature then stops and starts the start up flash sequence again.

I will test this out this evening as well and report back what happens.

I reset all of the connectors on the mpu and the game works. I pulled all but j4 like mentioned and added to it one at a time. The game is booting and playing now so maybe it was a bad connection. I'm not sure it's completely out of the woods just yet but I am going to throw some games on it and see how it holds up

I put about 15-20 games on it last night and cleaned it up a bit. There are still some issues with the game such as strings of GI being out, Some displays not working, etc. I believe they might all be due to some connection issues. I noticed some green slime on some connectors but no burnt ones so I will re-pin a lot of those tonight and begin fixing the rest of the issues one at a time.

I had never seen a game reset over and over due to a bad connection. You learn something new everyday.

I appreciate all the help guys. I'm marking this one down as solved.

Could there be something else other than the 5vdc that would cause a reset that would fall more inline with continuity issues? I don't know enough about it to say I just don't want to have to open a new thread about it next week lol

I will do this for sure.