Probably a Capacitor issue from the brown ooze there on your pic. This goo get's into the tracks and eats away at them eventually. Best get it looked at before it becomes terminal. - If you're not up for the re-work yourself & you aren't already a member @ Amibay, there are some guys over there that do this kind of re-work for reasonable fee's. Hikey is one of several such guys iirc.

Good luck.