nakamichi Av10

i have a nakamichi av 10 ant when i play dvds the sound cut in and out during action seens it dosnt do it if im playing cd's only when a dvd is playing. I have checked the cords and seem to be fine if you have any suggestions PLEASE HELP
Have you tried a different DVD player? Or that DVD player on another tv to see if it is a DVD player issue or if it is with the receiver?
does this happen with Dts or dolby digital? also does your amp just go silent or does it click when it goes off and then on again? check how much stuff you have on one 15amp circuit. You could be overloading the circuit, especially in DTS.