TOTAN won't boot up....Only the backglass is lighted, everything else is dead....I checked all the fuses, they are ok.

Any idea?

I removed the batteries with game on. I used my fingers to remove them...

No, i will try to unplug the machine few minutes.

When i took the batteries out, i didn't notice anything. That is only when i look at the playfield that i saw the machine seems off. I put the machine on and off and nothing happens but the backglass is lighted. DMD is off, sound is off.

I checked and unplug all the connectors on the MPU, all are good.

Now i'm ready to take the MPU from Scared Stiff and put it into TOTAN. I know that i have to exchange the ROM, is there anything else to do before installing the SS MPU in TOTAN?

For the record:

After reading your comment and checking all the things i have to, i swapped the boards.

I put the SS board into the TOTAN and HOURRA, it works!!
I tried the TOTAN board into SS and it works too...

My guess is when i changed the batteries into TOTAN, it created some kind of bug into the software. By removing and re-installing the software, it fixed the problem.....