Harmon karmon sb15 soundbar sound shuts off

There could be several reasons why your soundbar is unresponsive. It could be an issue with the remote, the device itself, or the power source. Here are some steps you can try:

Check the batteries in the remote to ensure they are working properly.

Check the connections between the soundbar and the TV to make sure they are secure.

Try unplugging the soundbar and plugging it back in to see if that resolves the issue.

If the problem persists, you may want to try a different power outlet to see if that makes a difference.

Check your configuration.

Do not know much about them...
But usually on the back of a unit there will be a little hole with the word reset under it,. remove the power lead from the device...
Insert a piece of wire into it and push down the button in it for about 5 seconds.
Plug the device back in and see if it has reset itself...

Regards
Geoff

TV sound bar problem - Audio - Audio - Tom's Guide

www.tomsguide.com/answers/id-1991267/sound-bar-problem.html

Jan 23, 2014 - I recently purchased a Vizio E Series Razor LED 60" tv for my home, and ... The TV plays sound with built in speakers fine, ... on the source playingthrough the tv, if via hdmi, the soundbar would ... Alright I plugged it in but still nosound. ... the tv hooked up yet but my bluray player runs off HDMI and my xbox ...

No Sound Thru Speakers (only sound thru TV) - VUDU Forums

https://forum.vudu.com/showthread.php?...No-Sound...Speakers...sound...

Jun 18, 2011 - 10 posts - ‎8 authors
Just purchased and connected an LG wireless internet-ready TV to a receiver, a DirectTV HD DVR satellite box, and surround sound speakers. ... Cable, Blueray player, and others internet services, like Cinemanow provide ... because i have a Vizio Soundbar 210WS model, and i have to go into the TV ...

Does the power light come on? If not, check the power cord and power outlet on the wall. Maybe plug in a table lamp to the wall power outlet to make sure the outlet is working. If the power light is on, check the Mute button on your JBL remote control. Also check the Mute button on your TV if sound and picture go through the TV first.
We had a Harman Kardon soundbar (model SB30) made by the same company as your JBL. It worked great for a few months. Then there were a couple of funny high-pitched sounds that stopped when we turned the soundbar off and back on. Then a day or two later we truned on the soundbar and it was completely dead - no sound at all. Harmon/JBL replaced the soundbar under warranty with a refurbished one which lasted about two weeks and dies the same as the first one. Finally, they replaced the second one with a higher model (the SB35) which is still working, although it occasionally makes a rapid clicking noise for a moment here & there.

How to Fix the Vizio Soundbar ' Chron.com

smallbusiness.chron.com > Finances & Taxes > Other Finances & Taxes

Soundbar Won't Turn On ... Turn the volume up on the Vizio soundbar and also ensure the soundbar isn't muted. ... For example, even if the Vizio soundbar is connected properly, if the TV is set up to output through the internal speakers only, ...

Fix A Vizio Soundbar Remote In 4 Simple Steps ' Vizio TV ...

vizhdtv.com/fix-a-vizio-soundbar-remote-in-4-simple-steps/

Aug 25, 2015 - Each model of Vizio soundbar includes its own remote. It's what is ... Use the power button on the soundbar to turn it on. Then test ... So replacing thesoundbar won't resolve the issue if you have one of the effected models .

Try pulling the batteries out for 5 minutes or so, and see if that resets it to factory defaults.

plug in the power to each unit with the provided power adapters, turn the sound bar and subwoofer on, activate the wireless subwoofer link by pressing a button on the soundbar (or remote) and subwoofer, and connect an audio source to either the provided analog or digital audio inputs on the soundbar
Note: When using the Digital Optical input, set source device audio out to PCM

(you can hook to ur tv if it has a R/L audio output, or u can also connect it if your tv has a toslink style digital output. (most LCD and Plasma TV's have them.))

I also had this UNLOCK message on my Harman Cardon AVR 130.
The reason for this error was - in a hurry I've plugged the optical input into optical OUT! Double check that your connections in the back are correct and hopefully it fixes your problem.

Cheers,
Sergey