When you do not hear sound on your Sansui TV, and the picture is clear, troubleshooting might seem a bit challenging at first. The problem could be due to nearby interference, weak signals or power source. Follow a quick process-of-elimination guide, and in no time, you will take the silence out of the picture.
Change the channel to verify if a specific broadcast station is experiencing sound problems. If you hear sound on other channels, contact your cable TV or satellite service, and put in a repair ticket; otherwise, go to the next step.
Press the "Mute" button on the remote control, and then press the "Vol+" button and increase the volume level. Press the "Vol+" button on the TV control panel if the remote control fails to work. If the "Vol+" button on the TV control panel works and the remote control fails, replace its batteries. If the "Vol+" button on the TV control panel does not work, go to the next step.
Move appliances and tools that cause interference to another outlet. Fans, heaters, vacuum cleaners and electric drills commonly interfere with a TV's signal reception. Move the TV to another area within the room, away from large windows where loud ignition noises from motorcycles, trucks or automobiles are heard.
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Press the "Menu" button on your remote control or the TV's control panel and select the "Audio" icon. Verify that HDMI1 Audio, HDMI or DVI is set to the correct source and turned on if you have a device connected to that TV input. Set the TV Speaker setting to "Off" if you have an audio system connected to the TV. Verify that your external speaker cables are securely connected. If you do not have an audio system connected, verify that the Speaker setting set to "On."