Super Mario World Cartridge problem

I have a Super Mario World PAL cartridge that doesn't work. When I power on the system I just get a black screen. I checked the traces, they all seem fine. I can however get the game to boot when I use a pal to ntsc converter with a PAL game in the rear slot. I'm assuming the game boots because the converter bypasses something on the front cartridge, but I don't know what.

Does anyone know what part I need to investigate?

 

I had the same problem I pushed the cartridge in hard it turned out my consoles cartridge reader was temperamental it might be one of the cartridge readers

 

I wish it was that easy. I've even tried it on a different snes.

 

dead crc? if you can solder try swapping crc's with a working cart

 

The cartridge's CIC chip is either dead or not getting a good signal to the console. You could have a broken trace, dirty connector pin, or something like that given that the game works when you use the import adapter which routes another cartridge's CIC pins to the console while ignoring the CIC inside the cartridge of the game you are playing.

The CIC is a small 16 pin DIP chip with Nintendo printed on it.

 

Thanks, that's the answer I was looking for. I'm going to check the traces and give it another clean.

 

With a good CIC pinout or by checking a working cartridge you can use a tester to see if the CIC pins are reaching the edge connector rather than visually looking at the traces. Sometimes broken traces are hidden underneath chips. Let us know if you find a bad connection or if the CIC is actually dead.

One other possibility is maybe you have a bad/cold solder joint on the CIC.