> > > Hello,
> > >
> > > Have some troubles with my Daytona USA Twin.
> > > - first cab don't apply texture on some cars (player one and others) see an
> > > example http://superusr.free.fr/arcade/daytona/dayto02.jpg
> > > - second one, display polygons as he want
> > > http://superusr.free.fr/arcade/daytona/dayto03.jpg
> > >
> > > Someone know the problem?
> > > Some ideas?
> > > Thanks a lot
> > > BP
> > >
> > O dear, it doesnt look good, what does the bios test tell you?
> >
> > See if it thinks any of the roms are broken, if it says everything is ok then
> > you might have a broken TGP in which case all is lost :(
> >
> > It's a bit weird that both have gone, might be a power supply fault damaging
> the
> > boards?
> >
> > Check all the connections are tight and that the roms all look ok and dont
> have
> > any obvious damage/corrosion.
> >
> > Other than that, you could be looking for a new PCB :(
> >
> > Six...
> >
> >
> > System16 - The Arcade Museum
> >
> Sorry for the delay, Thanks for your answer.
>
> Texture problem is due to Roms Board eeprom (not yet identified).
> Second problem is due to CPU board (IC60 or one of the two OPR) AND Video Board.
>
> I buy 2 complete Model2 Daytona Boards to repair.
> But I have problem with Rom Board. A blue screen appear when I use it. In the
> SEGA manual, blue screen is due of wrong plug of boards.
>
> Any idea?
>
> Thanks
>

ok, changing right eeprom onto the rom board solve the problem.

Someone know wich eeprom model must I used (27Cxxx) to burn and replace failed rom IC?
I hear about 27C160, wich is a 16MB eeprom.

Thanks