Simple fix for me. Unscrew the base, unscrew the back; lifts off. Power supply in the middle section had an obvious bad capacitor. The top was leaking. Mine was a yellow (korean NXH) 1000uf 25v low ESR. I replaced it with a similar unit. I checked the ESR (resistance) but cannot recall the value. Typically they should be .02 ohms. Anyway my malfunctioning capacitor was down to 490uf on my meter. With the new cap in it is working like a new one again.