I have the onkyo hts 5400 HTiB set up and it came with an upgraded subwoofer from a newer model the skw 591. it is a powered subwoofer and the red led that is suppose to show that it is in a standby mode does not illuminate and the subwoofer seems to be hit or miss as to if it comes alive. when it works the blue Led comes on and it sounds great. this happens most of the time but last night it did not come alive when the receiver was on.
I checked the subwoofer line out signal on the interface menu and it showed it was at + 12 db which seems to me like a good signal going out to the subwoofer to turn it on.
I swapped the RCA cables with known good ones and it made no difference.
I changed where the power cord was plugged into and it made no difference, i even checked the receptacles and they are powered.
whats next other then returning it? how do i check the out put signal from the RCA jack?