DVDs still show brilliant image. Absolutely no sound from speaker

check to see that the audio connection is correct,yellow video, red and white is audio, if you have hdmi capabilities make shure the cable is not used or dammaged ,that was one thing that happened to me and would only show a picture , i went and got a new one and that solved the problem ,but don,t go run out and buy one before you find that is the problem , just check with a cable that you know is working and if you are using hdmi , check to see if your rca cables when connected do the same thing , this is a way to isolate the issue , all in one dvd surround sound systems are handy but not practical , when you get into seperates it,s easier to solve the problem ,also check your warranty for possible warranty repair .hope this helps ,sincerely glenn