i have a marantz 4200,and tosh dvd connected by digi coax.the dvd is looped by scart thru the vid,then the sky box then the tv.The sky is linked by phono to the amp. now they are all good quality leads, so why can the dvd be heard when the amp is set to SAT and ive just turned the sky to standby????????? all i can think is the sound is going thru the scart and outputting even though sky is on stanby. your help/ideas muchio appreciated