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Saturn Mod CHip

Jeffrey - Jan 21, 2003

		Jeffrey		Jan 21, 2003
			I just got a used Sega V-saturn. It didn't work. So I opened it up and discovered a MOD chip! I put the mod chip in my similar US system (both model 2 style)... but no results because I couldn't figure out where the red wire was suppossed to go. I finally figured out via the net that it should go to the 5V line. So just as I was moving it to that area, the other end of the red wire broke off the board! Now I have no idea were it was originally soldered because it is so thin and was thinly attached. so anyway, I can take a pic of the chip, but I need someone to tell me where the red wire attaches on their mod chips. Note: it is a 21 pin chip, exactly identical to the image in this pic I found on a great website. http://www.trsoft.demon.co.uk/modchip3.jpg... Please help.

		mal		Jan 21, 2003
			Umm... probably somewhere near where it says 5v on the top of the PCB? Seriously though, there will probably the remains of where the red wire was attached somewhere near there, and that should tell you where to reattach it. .

		Curtis		Jan 21, 2003
			* NOTE: The remains of the red wire probably won't actually be red - it'll just look like a pin sticking out from the top of the board. Solder here. Just for clarity's sake.

		Taelon		Jan 21, 2003
			I just hope that it isn't the MOD CHIP that caused his V-Saturn to not work. Perhaps try that Saturn again without the mod, see if it's still dead. If not, all that work may be for nothing.

		Jeffrey		Jan 22, 2003
			Here are actually pics of the mod chip I pulled out of the V-saturn. Please tell me where the red wire should go on the chip. please. please. sugar on top. etc. http://www.geocities.com/denialgames/mod-front.gif... http://www.geocities.com/denialgames/mod-back.gif... As for the v-saturn. I switched the power board with my US saturn and it booted up. but it would not load the disk (interesting title screen and menu)... I replaced the actual CD drive with my US model, and still, it would not load a disk. it only says, "loading" and eventually stops. the CD never even runs... so I figured something must be wrong with the V-saturn board. or incompatible. I have shifted my attention to getting the mod chip into my USA model.

		mal		Jan 23, 2003
			My guess would be that you'd want to connect a 5v wire to the point next to the resistor that is further away from the ribbon cable sockets. Does that make sense?

		Jeffrey		Jan 23, 2003
			ok. I see where. And if you look closely there seems to be extra room over there (maybe a contact surface). And also when I look on the back there is an extra wad of solder there. With all those things apparent, I am still hesitant. I dont' want to damage the board. So, does anyone have a pic on the net or of their own similar mod chip? I would like to compare before I bust out the soldering kit.

		mal		Jan 23, 2003
			Wait for a second opinion if you like, but I can't see anywhere else on the mod that you'd solder a wire to. That, and the fact that the other link that you provided earlier quite clearly marks that point as '5v'. Mind you, the mod in that first pic isn't quite 100% identicle to your mod either. It just has one less capacitor as far as I can tell.