Sega Genesis / Megadrive PCB - eprom to cartridge adapter cart modding and development
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This item works the common EPROM 27C322 (32Mb / 4MB) but it also works with commons M27C800 , M27C400 and M27C160. I also sell some eproms 27C322 in my ebay shop. This offer includes programmation for the case you wouldn't have an eprom programmer.
See below how i've repaired a cartridge using this PCB
About all games,demos,homebrews released will work with it.The only ones that won't work are Street Fighter II ( higher than 32Mb , but actually I've just tryed an image found on the web and it works perfectly so ....) ,Virtua Racing (has an extra Sega Virtua Processor in the cartridge) and a few games with RAM (mainly sports games,but also sonic 3 , Wonder Boy in Monster World/Wonder Boy V - Monster World III,some Megaman - the Wily Wars/Rockman MegaWorld,etc...).
You'll have to solder an eprom.You can optionally solder a capacitor. If you use a 27C322 Eprom,you'll also have to solder the SP2 Solder point. For all other eproms, you'll have to solder a pull-down resistor (10K or higher values) and the SP1 solder point. If needed,I can do that for you,just let me know which eprom you're going to use.
It's easy,just follow this explanation :
Once opened : the old PCB and the new one
The Eprom has been soldered :
It perfectly fits the old case :
Repaired,it works perfectly !
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