Well I played around with it tonight. When it is first turned on it work great but after a half hour or so thing start to happen. I will turn the function button form vcr-1 to dvd and the on screen display reads----signal: unknown. If I push the source button two or tree time I get audio output and display reads: signal: dolby digital.
Could this be an overheating problem? It doesn't feel that hot, yes it is warm, but not burning (and I do run two of the tree zones.
Thanks again