Hi and welcome to justanswer.I`m going to help you with your tv but first i will have a few questions;
Are you connected with a cable box,satellite receiver etc. ?
Could you please lookup your tv`s model number located on the back cover ?
I will be in standby, just send me a reply ,and i will be notified and be with you ASAP.
We are connected to a cable box and a denon receiver with hdmi cables. the model # XXXXX
O.k and do usually have the sound only from the receiver or from the tv speakers as well ?
In any case the first thing to do will be to unplug the power off the cable box for a couple of minutes before you try it again
We usually only have sound from the tv speakers
Note that it may take up to 5 minutes for the cable box to reboot/restart
I have rebooted the cable box and we now have sound
Great , glad that it worked.
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Thanks for the help. I'll have to remember this in the future.