I don't think this is a known issue with this player - at least I never heard of it before . . .

What I would try first is to reset the player to factory default settings. You can do this by holding down the "Fast Forward" button on the front while turning the power on. I believe you should hold it down for at least 5-10 seconds after the power comes on.

If that doesn't help, then I would try using the 2 channel audio out (left and right). I know that this will give you crappy sound but you will at least see if the player is outputting any audio signal at all.

If everything fails then I think you will need to look into getting it repaired or just buying a new one.

Good luck . . . .