Interesting Super Nintendo problem

[Rob64]

Okay, here's what's going on.

2 months ago, I had friends over and we partied like it was 1991 and played Super Mario World by going the star route. We noticed that there seemed to be a sound channel missing because the track that plays on the map screen on yoshi's house did not have all of the music. I checked the tv in the two sound modes it has: mono and stereo. Neither worked. We ruled that it may be a cart problem, so I traded it in and got something else.

Fast forward to my birthday when my bro gave me the CIB set for Zelda Link to the Past. Then the sound channel problem came back in the form of cutting off sound effects entirely or almost entirely and not playing the "up there" part during the fairy fountain/main menu track.

This may lead me to believe that the problem is the console, until today. I tested the console on another tv and link to the past plays much better musically. Now it seems the problem is with the tv that used to have it hooked up.

What's wrong with it? Is it fixable?

[133MHz]

What connection method are you using? RF switch or AV cables?

[Rob64]

AV of course 

[manuel]

Could there be something wrong with the audio cables?

[Rob64]

If there was then how did it work on another tv? But that brings up an interesting point...

Maybe the problem is with the input jacks for the av cables on the tv? The tv that I've been using has these systems:

famicom/disk system
NES 2
atari 2600
and SNES.

Using rf on that tv, it seems like the sound is fine. I'll try the av jacks on that tv again by making sure they're in all the way and trying that.

[manuel]

Sometimes if you bend the cable it might get contact and sometimes not.

I had AV cables and I'd only get stereo sound when I held the cable up directly at the jack. When I let it hang limb, I didn't get sound for the right speaker.
I'm pretty sure your problem is different, though.

[Rob64]

Actually, that was the problem, so I ended up taping it down so I didn't have to hold it.

Now if the av cable was the problem, could I get a splitter with a new av cable and the av cable I have and fix the problem that way so there's no tape?

[manuel]

Just get another AV cable and throw away the broken one.

[Jollie]

yeah snes n64 and gamecube all had that universal AV cable idk but i think nintendo still has them readily available, and i know ebays gotta have em floating around.

[133MHz]

You can buy replacement RCA jacks at any reputable electronics store and replacement is pretty straightforward.
Also Nintendo AV cables are really common. Any gaming store worth its salt should have a couple for sale.

[Rob64]

thanks guys, I'll get one eventually

[FamicomFreak]

if that doesn't work scream at the SNES or hit it on the side it'll work better like that well it's a gamble but I do that at my digital camera and the LCD works again like magic wooohooooo

[manuel]

Hitting stuff is a great remedy for almost everything!   
I repaired my old computer monitor dozens of times doing so.

[133MHz]

Beating the crap out of electronics reseats cold/loose solder joints, making it a valuable troubleshooting method for users and professionals alike .

When the "technical beatings" don't work anymore, it's time to heat up the soldering iron...

[Trium Shockwave]

I used to have this old console TV that slowly required more forceful types of whacks to get the video to stop rolling. Started with a simple flat handed slap and escalated all the way to full strength kicks before I gave up on it.