Need help!

KronikX9 · Post by **KronikX9** » Tue May 06, 2008 11:01 pm

Hey everyone I'm new to this whole thing so bare with me please!

I've been following the guide (http://snesdev.romhack.de/som2.htm) on how to build an English Secret of Mana 2 cartridge and I've just got a few questions (more like a lot of em'!).

So far I've got the eproms programmed with the four files (1048576 bytes each) so I think i'm good with that.

But now I have to find a 74ls139 chips. What exactly does this do? And i've searched on ebay and other stores and couldn't find any, so is there anyone that can point me to a place that sells them for cheap?

My second question is, since I'm using Illusion of Gaia (playing on an NTSC SNES) will the game run at 60hz to go along with my t.v?
Since I am using IoG and he used Illusion of Time will there be any differences in building the cart?

Also, I ran across this picture (Same guy that made the guide I think)

I was just wondering what is under the black tape, since the mask rom was removed earlier.

If i'm ever to get everything working will the game have the save function and 2 player mode working properly?

Lastly, what kind of cables would you recommend for soldering everything together?

That should be it for now. Sorry about asking so many questions I am pretty eager to play SoM2 on my snes (hopefully)

Thank you so much for the help!

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Wed May 07, 2008 5:18 am

the 74ls139 are about 80cents on digikey.com

the game will run fine on your tv if you are using an illusion of Gaia cart

actually thats my picture

and there isn't anything under the tape it is just so none of the legs of the 74l139 make contact with any of the mask roms traces

same vunction works fine as long as you leave the battery on the cart, not sure about 2 player but I can try later and see

just get some IDE cable it's pretty easy to get a hold of

good luck on the cart by the way

KronikX9 · Post by **KronikX9** » Wed May 07, 2008 7:43 am

Hey thanks a lot for the help turbo tax.

This may sound dumb but, when making the connections for the eproms did you have to make any etches into the pcb or did you just make direct connections using the IDE cables? The reason why im asking is I found this site (http://nintendoallstars.w.interia.pl/ro ... rt2epr.htm) and they have a diagram on what traces to scratch out. I don't think I saw this on the snesdev website.

Thanks again!

P.S Tell me how the two player works out if you can!

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Wed May 07, 2008 5:32 pm

nah you don't need to cut any traces if you are doing it like on snesdev. I'll try 2p now

edit, yeah it works