My Samsung HW-FM55c subwoofer syncs with the main unit, but the no sound or sometimes sporadic garbled sound.
336529
Depending on how you have configured the connection the answer may lie in whether or not you are using a digital optical cable for the out put of the TV to the unit. HDMI is for ingoing signals, but if you are using the TV as a source to amplify then you need to add the digital optical cable from the TV out to the Sound bar in for this cable. If that does not correct the problem, then you may have a defective unit. This cable is not included in the box, but can be purchased for about 10-20 dollars depending where you buy.
2195803
I had this problem or the woofer loosing the connection to the unit. Unplug the sound bar and plug back in and the unit should reset and pair, also try this with the sub woofer. For some reason this reset the connection and mine started working. I think I unplugged the woofer after the pairing and it started up. Then when they became unpaired I rebooted the sound bar. Hope this helps.
1790176
It could be the external speakers you have; also make sure the speaker jack is ALL THE WAY IN the external port. (Otherwise youll only get a faint sound.)
2284703
Yeh, I bought mine 10/15/08 and had the same problem.It turned out to be a ground loop between my Receiver and my Samsung TV.I put a two-prong "cheater" on the Samsung power plug and that fixed it.Not the best way, but the hum is gone.
1969215
The only things I could think of are your center channel is blown (you can check this by hooking it up to a different receiver), your center channel output on your receiver has some sort of issue (you can check this by hooking a different center speaker into your receiver). If neither of these are your problem then odds are it is a problem with your receivers settings. Turn on your receiver and play a DVD or blu ray, next push the "setup" button on your receiver remote, it should say "speaker setup", push the "right arrow" button and it should now say "Config", push the "right arrow" button again and you are now in the speaker configuration area. Push the "up arrow" until you are on "Center", make sure it is not set to "None", try setting it to "small". Push the "up arrow" again until you are at "Front" and try setting them to "small". You can continue pushing the "up arrow" to configure all your speakers, make sure Subwoofer says "None" if you do not have one as that can cause issues. Good luck getting your center speaker working.
1049310
Had the same problem... so things to do:- Check to make sure you have power- make sure it is well connected to the Onkyo amp- check on the speaker configuration and sound mode.In my case I had to update the configuration so that it recognizes the sub is enabled. Took a few minutes to go though the menus...
1866589
Yes, I would think so. Have you tried reversing the cables in the ports to see if the other unit gets sound? Also, try switching the cables on each unit. Could be a bad cable or port.
1049306
That happened to me. I unplugged the sub plug and coaxial cable for half an hour. Plugged the sub into the outlet and then the coaxial plug into the reciever. I turned the reciever on and it was good. Make sure you check your settings that te subwoofer was on. (Onkyo states that sometimes the static from the cable and reciever can make it shut off) hope this helps.
1714283
It could be your input cable from your music source. Try a different cable first before declaring the unit defective.
2164909
I had the same problem, but if you push the output wire into the subwoofer hard and jiggle it a bit they should come on.
1183822
When I first tried using my receiver's "subwoofer out" connection, the sub wouldn't turn on automatically. The reason, I determined, was that I didn't have the subwoofer selected in the receiver's menu. Once I made sure that the sub was, indeed, being fed a signal, it has been working flawlessly. I hope this helps.
709361
If you're still having issues, you should probably give more details. For example: what receiver are you using? and what are your subwoofer settings on the receiver set to?
1816345
There is a level adjust knob on the back of the unit, have you turned the knob up as to not be on "0"? Confirmed the LFE input is properly seated and also that the subwoofer power supply is plugged into your wall outlet?
2204446
Try switching speaker wires.....if still not working,it is most likely the unit itself.
1774943
Don't know, and it was annoying when I first bought the soundbar. I've never seen any other Bluetooth receiver with a sound-synch problem, and there is a special function on the remote to correct it. Fortunately, it only occurred when I first bought the speaker, and it's never been a problem since and I've had it for the last three years. Strange.
496031
Never experienced the problem and we are still in love with our Polk sounder. Since the woofer is a BlueTooth device, you might want to go through the "Pairing" process again. BlueTooth is kind of voodoo and has been known to drop it's pairing of devices for no real reason. Thus, try pairing it again. If you mislaid instructions on this, i am sure that Polk Tech Support could help you or you could Google the question "how do I pair my subwoofer with my Polk Sound Bar?". See if that helps.
701925
I think it requires a different cable. I plugged an auxiliary cable into it, and it would not play sound through my subwoffer.