Toshiba Tv Volume Not Working. Have checked connections have unplugged. If there is still no picture or sound at this point the best option is to contact Panasonic technical support for further assistance. Plug them back in and check for a signal. Sound has suddenly stopped working on Toshiba LCD tv 40BV701B.
Disconnect it from AC power then press and hold the power button on the TV and not the remote for 10 seconds. The picture is fine but no sound is coming out - Answered by a verified TV Technician. There is three things that can cause this on a toshiba TV set. Release the button and reinsert the batteries properly. TV is only 3 months old. Otherwise its just educated guesswork.
Adjust audio settings until the sound comes back on.
If you use a pair of headphones which have a microphone on the connector 4 band type 35mm jack then you can plug these into the TV headphone socket. Turn the TV off unplug it. Your best bet would be to find a authorized Toshiba repair center in your yellow pages and ask for a rough estimate. To determine which of these conditions is causing your problem follow these steps. There are several reasons why your HDMI sound might not be working. When the headphones are plugged into the TV the sound will mute from the internal TV speakers.