STOP! DO NOT DO THIS YET.
Before you do this... unplug the game from the wall... take the back off the cabinet... remove the fuses... make sure the fuses and fuse holders are clean and shiny AND that the fuse holders are making a tight connection to the fuses.
This is a common problem.
Also, if there's an extra board between the game board and the wiring harness connector then remove it and plug the harness into the game board. That extra board is called a filter board and causes problems. The game will run fine without it.
I think you'll have issues with those and not with reseating chips.
Also, these are easier things to do... and things that are less likely to result in accidental damage.
RJ