Inspect for a bad chip.
Turn the unit on ,allow it to stay on for awhile then feel on the tops of the SMT'S ,the big flat chips and see if any of them get really hot to the touch.
BB
Over the years PG1 boards have been swapped out for nicer looking MVS shells so the serial number thing is not consistent nowadays and you just have to refer to the chip as to what version you have.
BBH is a member in the community.
Just Google bbh shock troopers and you'll get all the info you...
You can reflow the P1 but you most likely will have to burn a replacement.
There are two versions of the program rom.The P1 is the long life bar version that your heroes share and PG1,the updated version where each hero gets a separate life bar.
BBH has a big write up of the differences.
The PG1...
Ive just just learned about the hacks and I'm very sorry to read about the members who got caught up in that.
In light of these incidents,anybody interested is welcome to PM me for new photos with the date and my handle written on a piece of paper along with whatever you request for me to write...