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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
Check whether the mute button on TV or remote is jammed. Try using a headphone. Try changing the input device to something you know works for sure. If problem persists, it might need attention by a qualified service technician.
The message you are seeing means that the tv is not receiving a signal from the source. Try hooking up a different source such as a DVD player or a Cable Box to that same input on the tv. If you have picture and sound then the problem is with the original source. If that does not work then you have a bad Main bd.
I have a troubleshooting procedure file who is in PDF format , i don't know how i can send that to you. Any way if you are a technician , send me a small message to my email so i will send you all the information attached to the message which i will send back. Thks
With your remote, go into the menu, find the audio setup and click off the SAP. Thats the Second Audio Program. Some Broadcasters send a second lanquage along with the regular audio. Someone must have been looking around or playing with the remote and turned on the SAP.. Good Luck
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