Headphone jack problem - only left side of the headphone is working.

So, I have this macbook for two years now, and one day i put my headphone in and sound came out only on the left . My headphone works fine in other divices and I tested with other headphones in my mac.

I search a while on forums and all of them said it is probably a problem with my logic card, but is too expencive to buy a new one just to fix a sound problem that seems to be a contact error.

I already tried to stick the q-tip in the sound jack (Headphone Jack Stuck on Digital Out), at first it simply didn't work and at the second time I tried a red light came out of the sound jack.

I thoght of openning my mac and try to disconnect and connect again the sound output from my logic board, but I am afraid to damage it even more. So, will I really have to buy a hole new logic board or is there another solution?