Audio Left and Right Problem

Hi guys, I don't know if this problem do exist, but I haven't found one. Please forgive me if I double post this problem.

Let me start, well my speakers work both left and right. I play videos and games all other stuffs with both speakers working. But as I test it out, both speakers are only giving output on what does the right speaker give to them.

I tested it using Realtek HD Audio Manager. When I clicked on the left speakers on the test panel, no sounds comes up. But when I clicked on the right speaker, both speakers do make a sound. So I'm not getting a stereo effect. the settings are already set on Stereo mode. I need some advice. Thanks!

ok, sorry for the very noob question, I just found out that the wiring on the head jack was compromised. Thanks!