System 32 Conversion tutorial, Slipstrem over Rad Mobile/Rally Rom PCB

[man1aco]

This game is not made for Rad Mobile/Rally board ROMs.

After burning the eproms the game did not run.

I suspected it couldn't read the 512kb program ROM (27c4096), so I split it into 4, 128k eproms (27c1024), now the game runs.

The final touch, change jp13 to 1-2 to fix messy graphics.

The position of the eproms is easy, just follow what is written on the board and in the mame roms, object, sound, program, scroll, data.

Enjoy !

 

[ShootTheCore]

Well done!

 

[Casselfornia]

Thanks for sharing. Could you add a better Photo of the Eproms for archival purposes?

 

[man1aco]

Roms map, just follow the name and number of the mame roms.

 

[Casselfornia]

Any chance you could tell me what Eproms to use? Or anyone else?

 

[Casselfornia]

Sorry for double posting but I finally managed to convert a Rad Rally. I have no 27C010 or Equivalent here. Programmed it to a 27C2001 and wired Pin 30 to VSS and burned it like 27C010. Reads fine, SND01 also but I have no sound. PCB is working fine with Rad Rally or Golden Axe 2 Romboard. Any ideas?

 

[man1aco]

Sorry for double posting but I finally managed to convert a Rad Rally. I have no 27C010 or Equivalent here. Programmed it to a 27C2001 and wired Pin 30 to VSS and burned it like 27C010. Reads fine, SND01 also but I have no sound. PCB is working fine with Rad Rally or Golden Axe 2 Romboard. Any ideas?

Wrong eeprom Should be 27c301/27c1000

There are jumpers to change it to 27c010 but it will be more then one, it will not be easy to figure out.

 

[Casselfornia]

Thank you. I wasn't aware that these are non jedec and the rom map from mame says 27c010.
Finally got it to work properly!