I AM USUALLY GOOD AT THIS , BUT THE USB HEAD

I AM USUALLY GOOD AT THIS , BUT THE USB HEAD PHONES ON MY PS3 ARE NOT WORKING AT ALL WHEN I CONECTED, NO SOUND,CANT TALK I CAN HEAR ON THE TV OTHER PEOPLE TALKING BUT IT DOES NOT RECOGNISE THE USB, I HAVE 2 DIFFERENT SETS, AND HAVE A NOTHER PS3 WHERE THEY DO WORK. MY QUESTION IS HOW DO I FIX THIS PROBLEM COULD IT BE A SETTING (AUUDIO DEVICE)SETTINGS. I REFORMATED THE PS3 BUT IT DIDNOT WORK, DO I TAKE IT TO DEFALT SETTINGS OR GO STRAIGHT TO THE AUDIO AND TINKER WITH IT THERE??