Strange SNES issue

Hey everyone,

So on my original SNES that I purchased new when I was kid, I am experiencing a weird issue. The system works perfectly fine with all my games, except Street Fighter 2 Turbo, and Chrono Trigger. Street Fighter 2 Turbo starts up with garbled graphics for the intro screen and the capcom logo, but then becomes normal again. With Chrono Trigger the intro pendulum scene plays perfectly fine with no graphical glitches, but then when I press start the menu comes up garbled and then the game freezes. Both of these games play perfectly fine on my other SNES so I know the games are good. The thing that's weird is that all my other games play perfectly fine on the SNES with the issues. I played through all the DK country games, Contra 3, Super Metroid...all with no graphical or playability issues. It's just SF2T and Chrono Trigger.
I already completely took the SNES apart and pulled the connector off and boiled it, and then afterwards scrubbed it really good with 99.9% alcohol.. put it all back together and the same thing is happening.

It's just really weird to me because it plays all other games perfectly fine. What else should I check out on it?

 

I would recommend cleaning your games and your cartridge connector port on the console itself.
But since you already did that, I honestly have no idea what the problem could be. Especially because the games work fine on other systems.

 

Isn't garbled graphics on Street Fighter 2 Turbo copy protection related? Might be totally off base though...

Does Super Ghouls and Ghosts play without garbled sprites?

 

the initial 2 intro screens are garbled, then the main menu and character select screens are fine, gameplay has some garble at the way bottom but is not so noticeable, but it becomes garbled completely again after a fight when it shows the two fighters faces. The game runs perfectly without any garble on my other SNES.

I don't have super ghouls to try out, but all the other games I've tried besides Chrono trigger work perfectly on the troubled SNES.

The only thing I can think of, which I don't know if it's related at all, is that the troubled SNES is a first gen, and the other SNES is the newer one (not SNES mini, but newer fat model). I'm thinking that maybe the older console just doesn't play well with those particular games because everything else works fine on it. Perhaps I'm wrong though.