jvc av-wrf1ek

[laverda]

had a power dip the other day, all appliances r running through a surge protector. anyway, tv was going on of on off on off n so on due to not enough elec getting through, eventually power comes back on...but sound is terrible, i have played with the surround and 3d phonic and so on, but its no different. ive tried sound on cinema and so on, no sound at all, i have done a sound test, centre speaker fine, but left and right gives no sound, took speakers out and tested them, they work, is there any way to reset this tv to original settings? or has anyone have any idea as to why these two speakers only arnt working in the tv?

thanks