Can anyone identify this Genesis mod?

[Melf]

At least I think it's a mod. I got this email today:

I saw your web site thru ask.com search engine. It's a very nice site! I do have a question, I recently got a genesis 2 and when I trried to turn it on, the small sega logo comes on then the screen goes blank and stays that way. I opened the console and found a weird modification done to the main board, there is a small circuit board "floating" behind the cartridge slot, its about 1 1/4 X 1 3/4. Then, there is a 1 x 3/4 tiny board mounted next to the biggest SEGA chip on the main board... There are wires running everywhere from these 2 boards.. What have I got???

[Elusive]

At least I think it's a mod. I got this email today:




Now, that's interesting. Hidden inside the Model 2's universal TMSS is a small, uncompressed 'SEGA' logo. You can see it for yourself, if you have a copy of the TMSS dumped (usually called 'Genesis O.S. ROM', thank you very much, ROM warez emporiums...) and the program named Tile Layer Pro.

From the description, I'd guess it's a modchip of some kind: '...biggest SEGA chip on the board..' sounds like the chip where you lift and solder pin 105 (IIRC) to a switch. There's not much we can tell without images, though :(

[ary incorparated]

Please show youre problem then we would have lesser problems the big boy chip probably would be the processor but please show it if possible,we can help you trought the site without problems so that you can even post the picture thats what we are here for to help you with it.Idd say join this site and you also can have a nice little chat about others things too.