Metal Slug 5 MVS Corrupt Graphics

[ShootTheCore]

I've had this Metal Slug 5 MVS cart for about six months. When I first got the cart, I could play through the game perfectly. Shortly thereafter, vertical graphical corruption would happen after the game had been on for five minutes. Now the same corruption happens immediately after power on.

I checked the Troubleshooting section of the Neo Geo Dev Wiki, and it looks to me like a fix rom problem since the corruption lines don't move with the sprites. But I've checked all 8 Fix Rom pins on the back of the CHAR board, and they're all reading proper continuity with the corresponding leads on the NEO-CMC50 chip. Naturally, I've made sure that both the cart itself and the cart slot are clean. Other MVS games play fine.

Other suggestions on what the problem could be? I'm worried that the NEO-CMC50 chip itself has failed.

Pics:

Spoiler:

 

[egg_sanwich]

I had a Slug 5 with the same issue; worked, then had corrupt graphics when played again a while later. It was definitely a bum neo-cmc. The fix was pretty straightforward though, did a board swap from a KOF2000 and it was all good. Thread here for reference: http://www.neo-geo.com/forums/showthread.php?269284-Metal-Slug-5-MVS-Corrupt-Graphics&highlight=

 

[ShootTheCore]

Thanks for the link Egg-I missed that one back when it happened. Your board looks worse than mine but the symptoms are definitely similar. I'll start shopping for a donor KoF 2000. Hate to resolder a pristine cart, but that's life. Thank you!

 

[Neo Alec]

Zerminator has a cheap one in the Sales forum now.

 

[ShootTheCore]

Just a quick follow-up to say that Big Bear hooked me up with a replacement CHAR board and the game is working great again. Thank you Big Bear!