after a month , the unit -lrb- sc-ht800v -rrb- would turn off as soon as I turn the unit on . after troubleshoot , unplug and replugg , I figure out it have something to do with the connection from the base unit to the subwoofer . since the all the speaker connector be on the subwoofer instead of the base unit , I have no speaker . the dvd and VHS will still work if I use the tv 's speaker . the tuner will not work unless connect to the sub , so no tuner .