I have a Panasonic smartvera flat screen tv, Zvox 205 sound bar, and a Motorola cable receiver from Spectrum (my provider) I hooked up the new sound bar to the tv via the toslink fiber optic cable per Zvox instructions and it worked perfectly. However, later I was not able to turn off the system and got an error on the screen stating "no signal, check connection..etc". Completely disconnecting the sound bar made no difference. After some minutes, a "702" signal came up on the tv screen and I had to unplug the cable power to reboot the system. Connecting the sound bar to the tv with minijack analog cables and red and white RCA jack cables had the same results; reboot the cable system. Anyone have an idea?