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Check if the mute button on the cable box/TV/VCR is activated. If so, turn off the mute feature
Verify the volume on the cable box/TV/VCR is not turned all the way down, either by adjusting the volume level on the equipment itself or with the remote control
Check if the TV has an earphone or headphone jack. If so, make sure there are no earphones or headphones plugged into it
Check if the Cable Box/TV/VCR has a SAP/MTS switch (Secondary Audio Program / Multichannel Television Sound). If so, make sure it is set to the proper setting. Consult your TV/VCR manufacturer's user manual for information for your specific TV/VCR. Click here for information on changing this setting on a Cable Box
Check behind ALL TV and equipment (Cable box, TV, VCR, DVD, stereo receivers, etc) and the coax cable at the wall outlet for any loose or damaged connectors
Make sure all equipment and connections are hooked up correctly for the video and audio based on the type of connections being utilized
If there is sound, no doubt, its signal input is OK. The problem must be to your Tv itself. If the LVDS cable, the cable that connects between the T'Con board and LCD panel have a loose contact, this type of faultcan occur. Re-seat this cable once, and check. If you wish to get more details, surf the following link. There are over two thousand and four hundred posts. All are related to television and other domestic electronic
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ensure TV's 'mute' is not on. use buttons on TV to adjust volume up and down. if not working properly, you may have a volume adjustment on your cable modem which needs to be turned up to maximum. if sound works, all is well. if sound still not acceptable your TV needs repair.
if TV buttons adjust volume OK, and your remote for TV does not properly adjust volume, try fresh batteries. if
remote still not working properly, you can buy replacement on EBay or try a genaric remote from a dollar store. also, i may have an extra remote for you.
you are having problem on your tv with your tv sound ic this can be located ion the sound circuit just where the speaker is hooked up inside the set if you are not a tech have one repair your tv good luck
Sounds like you have a jammed / shorted out button on the control panel... Try un-plugging the tv, and then unplug the "button panel" on the front of the tv...see if you can turn the tv on with the remote. Sometimes if one of the buttons gets shorted, it will "lock" the processor from doing ANYTHING else, as it thinks you are holding down the defective button. If this works, simply have the defective switch or control panel replaced, or just leave it unplugged and use the remote only! Hope this helps!