Topic: NES Tecmo Super Bowl Cartridge Question

Hi there, I'm new to these forums so apologies if this isn't the best place to ask this question, but it's been more difficult than expected to find a forum or community about NES game repair. Please feel free to point me in the right direction if there's a more suited online location.

In case you're up for helping with this game problem, what my cartridge is doing is this: powers on fine, start screen comes up and looks good. Once the team select screen appears though, there's some garbled graphics and characters toward the bottom of the screen. Teams are chosen and game starts. Opening kickoff happens fine but when the play select screen tries to appear, total garbled graphical mess and game ceases to run past this point. This is consistent after cleaning with alcohol, deoxit, and reflowing all chip solder points. Could it be the two caps even though they look fine? Bad character ROM? If so, are there replacement chips available online somewhere for programming? I'm just getting into the world of NES repairs and know just enough to start asking questions. Once again I do apologize if this is the wrong spot to ask this and I won't bother you again, but if you could point me in the right direction that would be really great. Thanks for any info,

Blake

Hello Blake, I have same issue.. I just purchased Nes Tecmo Super Bowl from an eBay seller. Come to find out it had graphics issues once you Start the kickoff, starting game works fine but once after kickoff graphics issues. So I purchased another Tecmo Superbowl from another eBay seller, come to find out same thing. I went online and it seems the save batteries in them may have coroded the pcb board inside which causes the graphics issues. You find a fix? I want to be able to play this game again. Let me know please. Thanks!