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I know that Irem M92 boards (I specifically have in mind Major Title 2) can be converted to R-Type Leo, but what other conversions can be achieved with this boardset? And are they fully documented with any relevant ROM patches? Thanks.

Using Arcadehacker's file and an Arduino I'd like to re-program an FD1089B module with the key for 317-0016 (I've re-programmed FD1094's before). However, the Arduino file for reprogramming the CPU module doesn't have the key for 317-0016 - does anyone know if this is available so that I could...

I'm looking into converting a System 16A Fantasy Zone into either Alien Syndrome or Alex Kidd: The Lost Stars (this is at the request of somebody else and will be for his own personal use). Looking at the MAME source code I can't see any obvious reason why it can't be done and I also have an...

I believe it's possible to convert Konami GT to Nemesis but is it a straight EPROM swap? I guess some sockets may need replacing? Is a modded set of Nemesis binaries required or will any set work?

I've never repaired a PGM motherboard before (have repaired plenty of other board types though), now I have one with three carts in an unknown state. Without a cart inserted the board produces a jingle, displays the PGM logo and enters the test menu. I have three carts to test, all purchased...

I'm currently working on a Don Pachi board which appears to have a faulty custom chip, specifically the one marked as: 038 (there are three like this on the board). Does anyone know if Do Don Pachi uses the same custom, or any other Cave/Atlus boards for that matter? Perhaps I could find a...

I've recently been sent a System 32 boardset where an attempt had been made to convert it from F1 Exhaust Note to SegaSonic Rev A (Japan, prototype). The ROM board type is 837-7429-01 The game wouldn't boot but on replacing a corrupt EPROM it now boots into SegaSonic Rev A and can be coined but...

Has anyone yet managed to find a reliable supplier of NOS incarnations of the titled CPS1 'A' board custom?

As far as I'm aware the DL-2027 handles the sprites, but are any of the other customs involved too? I ask because I'm currently working on a 19xx B board which has horizontal lines through the sprites -the fault is definitely on the B board, the ROMs are fine, the sockets are fine and, more to...