Hello there, I just joined the site. i have a simple setup -beocenter9000 -beogram5000 -penta6603 mk? i got/Had the same problem: I dismantled (4 nuts n washwrers on the bottom do it all! dont loose them. lay onto a bunched towel and loosen in rotation.) and found loose/bad connections, after cleaning and reassembly it worked fine.. Then! the other