before i start, i did make a lot of research on the forum and couldn't find a way to fix my issue.(i actually stayed up till 5am reading on the forum) a lot of valuable info around here, i learned a lot, amazing,
so here is the story, i bought 2 slots machines about 2 weeks ago, 1 working 1993 triple double 2 credits 25c and one non working 1993 red white blue with 3 paylines 25c as well.
as for the previous owner the non working machine have a damaged motherboard due an old battery leak on the board and damage it, after short inspection you can also see some water damaged, rust and damaged chips.
so i tried to use the working motherboard on the non working machine and it came on but gave an error for a wrong game chip. well that was a good sign that it basically needs a motherboard and chips and we good to go.
but of course my stubborn personality wants to keep testing and check if i can make it work, so i got the red blue white chip out of the damage motherboard and tried to install it on the working board, well it didnt work, so i decided to bring everything back to normal, plugged the working board back into the triple double and everything worked just fine.
about an hour later i asked myself, if it was just the chip on the non working red white blue machine the board might be still ok, so i got the working game chip out of the triple double, plugged it in on the board the didnt worked before and tried to turn the triple double machine on with the board that didnt work, unfortunately it didnt come on at all, and after i inspect it even more i realize that the motherboard dont look good at all and it make sense it actually dead. i unplugged the game chip and plugged it back in the working motherboard, and guess what, something happened, now even the working machine wont start, i slide the board back in, turn it on the reels get stiff, but nothing else, screen wont come on, no sound no light no service light, nothing, i checked the board, power supply, all the cables, everything looks fine and in good condition, and i cant figure it out. i got a question for the pros here, does it make sense that i damage the chip when i insert it to the damaged board and powered it on ? if so, it make sense that thats the reason not it will get power and the reel get stiff but nothing else will come on ?
some photos added, if any more info needed just let me know, im super determined to fix it.
btw i did order new motherboard, hopefully the right one, and also new chips for both machines, game and reels.
https://www.slotmachinepartsstore.com/online-store/IGT-S-CPU-16-MG-NEW-p73095425 thats the board i bought