Interesting Super Nintendo problem

[ericj]

Funny thing about the 'technical beatings' is that you may only have a couple cold solder joints, but after beating it for months/years, you can end up with hundreds. I helped a friend fix a rear-projection CRTV that had about a years' worth of 'technical beatings'. Took almost 2 hours of soldering to re-flow all the broken solder joints. I'm surprised I didn't get lead poisoning from all the solder fumes. 

[MS-DOS4]

My SNES doesn't output the left audio channel. I've tried switching cords but I guess I'm just going to look under the hood.

[Rob64]

your problem might be similar to mine (for me it was right audio). Try putting a game in with a menu screen that you are familiar with that would have all the channels there. I would use Link to the Past, or Super Mario World or something.

Keep it at the menu screen and bend the wires until the sound come in and once you get it... tape it down. It worked for me.