found a load of old vhs tapes today so i thought i would have a look at them. been a while since the vcr has been connected. plugged everything in, mains ,scart lead and bingo great picture no sound the set up is tosh 36zp18q,sky into av1 scart,dvd player into av2, xbox 1 and awia vcr connected to a 3 way belkin scart adapter, 3 way into av3. av1 & av2 -perfect av3- xbox-perfect/ vcr-good pic/ NO SOUND anyone got any idea whats going on????