[SOLVED] Le Mans 24 rom board no boot

[Tailsnic Retroworks]

Hi, I'm trying to use a new Lemans 24 romset I have acquired. I have tested it on 2 fully working Virtua Striker 2 Step 1.5 rom boards, and on 3 SEGA Model 3 Step 1.5 working CPU + GPU boards.

The game tries to init with the famous "garbage" 3D screen, and after that it would appear the 'System Initialize" message, but I only obtain black screen.

Does this game have a special jumper configuration on CPU board or anything? I have dumped all CPU roms and CROMS and all are good.

 

[Tailsnic Retroworks]

Solved the problem. If it's the first time you power up the game (in my case for being a conversion, the system parameters are initiated), it begins in master mode.

If the game doesn't have communication board, the previous case occurs. Must be an incompatiblity not taken in mind by the developers, and the game crashes in master mode without comm board.