Still trying to fix my 76942000W reel shelf board because I can't find a replacement. After further research, I figured out why the new type of board, the 76943500W doesn't work in the game. It is actually compatible with the game but not the current reels. The old machines like mine only have a single white reel backlight but the new ones have the RGB light boards. It's looking for those and doesn't see them so it goes into a tilt. If I were tp purchase 3 new PN 66040101R Reel Assemblies (Wide, BP, JPO, RGB) then I could use the new board which I have several of on hand. But unfortunately for reasons I don't want to get into here, I currently can't buy anything from IGT. So I was wondering if anyone has schematics of the 76942000W reel shelf board? On a very similar board 76941900W (4 reel type) I'm using for comparison troubleshooting, I see the chip select pin 1 of the boot chip toggles a few times on powerup and stays high, but on my dead board it stays low. And I trace it all the way back to the big Xilinx Spartan IC. I can't go much further without a schematic. If anyone has any documentation they'd be willing to share, or has seen this before and knows the solution, please let me know. (And I did verify all the power supply voltages are present and good btw)
Thanks