Hitachi CMP4201U 42 in. HD-Ready Plasma Television "power seat hums" Questions

humming noise from the back of the display. This problems are the causes by of those power supply tranformers in power supply board are not seatted or uneven gaps in the board itself have those ...

...power button on the TV's remote or the front panel of the set. This may seem like an obvious step, but many TVs are equipped with a standby light that will illuminate if the TV is turned off, ...