Tip & How-To about Panasonic 37" VIERA Full HD 1080p IPS LED TV - TC-L37E5 Value Bundle

How to Troubleshoot Audio or Video Issues with a TV

If you are having an issue with the video or audio of your TV, try another source device and another set of cables. If the issue occurs with multiple source devices and sets of cables, the issue is with the TV. If the issue only occurs with one source device or set of cables, the issue is with the source device or the set of cables you are using.

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vizio model M320SR has black screen but has sound. V logo appears when tv is first turned on then goes away.


If there is no video but you have audio or you have intermittent video:
  1. Press and hold the mute button on the VIZIO remote for 3 to 5 seconds. Some VIZIO TV's have a "Mute Screen" feature that turns the screen off if you are streaming an audio application (Pandora, Spotify, etc) and don't want the screen on. To activate/deactivate this feature, hold the mute button for 3-5 seconds.
  2. Turn the TV off and unplug it. Press the power button on the side of the TV for 30 seconds. Let go of the power button and plug the TV back in.
  3. Check the connections between the TV and device. Ensure the cord is connected securely to the TV and the source device.
  4. Try a second device. (Example: If the issue happens on a Cable/Satellite box, try using a DVD player or gaming system to see if the issue occurs there.)
    1. If the issue occurs on multiple devices there is an issue with your TV. Please contact Support by Clicking Contact at the bottom of the page or give us a call Monday - Friday from 7am - 11pm Central Time or Sat. & Sun. from 9am to 6pm Central Time at 855-833-3221.
    2. If the issue only occurs on one device the issue is not with the TV but with the device or the cables used to connect it to the TV.

Jan 26, 2017 | Vizio Televison & Video

1 Answer

Why does sound turn off.


Follow these steps to troubleshoot if there is no sound or intermittent sound from the speakers.
IMPORTANT: Not all of these features and/or functions are available on all products. Consult the instruction manual that came supplied with your unit to verify if your particular unit has these features, or if more detailed information is required to perform any of the steps below.
NOTES: Click on the appropriate link below if the issue is occurring with a particular device or connection.
  1. Make sure the MUTE function has not been activated.
  2. Try turning up the volume level.
  3. Check that there are no headphones connected.
  4. Try setting the Audio/Video (A/V) receiver to a different Surround Sound mode.IMPORTANT: Verify that the source you are playing is encoded with Surround Sound audio. If not, the audio will be very difficult to hear using a Surround Sound setting. Set Surround Sound to OFF when playing a source that is not encoded with a Surround Sound signal.
  5. Check each speaker to make sure they are properly connected to the A/V receiver.
  6. Perform a Test Tone function to verify if the speakers are working correctly.
  7. Verify all external audio sources are securely connected to the appropriate inputs on the A/V receiver. NOTE: If the audio is being sent from a television to the A/V receiver, then it may be necessary to disable the internal speakers of the TV or set the audio output of the TV to FIXED or VARIABLE. If the audio output of the TV is set to VARIABLE, then you will need to increase the volume level of the TV.
  8. Make sure the correct audio input is selected on the A/V receiver.
  9. Confirm what type of HDMI® devices are connected to the A/V receiver and then check the following:

    1. Test each one of the HDMI inputs on the A/V receiver to confirm that all of the inputs for the A/V receiver are working.
    2. Try a couple of different HDMI cables to verify there is not a bad set of cables.
    3. Unplug the video source from the A/V receiver and connect the source directly to the television. If there is still a problem with the audio, continue to the next step. If connecting the source to the TV corrects the sound issue, service will be needed on the A/V receiver. NOTE: Additional troubleshooting steps are available to troubleshoot instances when the audio, video, or both goes out when using an HDMI connection.
  10. Verify the DEMO (demonstration) mode is not active.
  11. Change the ATT (attenuate) setting. NOTE: The procedure to change the ATT feature varies by model.
  12. Reset the A/V receiver back to factory specifications.
The troubleshooting steps listed above should resolve your issue. If you have completed all of the steps and the issue is not resolved, service may be required.

Feb 04, 2016 | Sony BRAVIA Televison & Video

1 Answer

tv does not receive sound from new digital cable box through hdmi cable.


It's probably a settings issue on your t.v., you can change where you get sound from (audio source), and it might be set to something like an analog audio source. Just change the audio to come from your HDMI. Not sure what model your t.v. is, but try going to settings, sound, and find something that looks similar to audio source, and change your settings from there.

Jan 09, 2016 | Audio Players & Recorders

1 Answer

video drop


Try to isolate the offender. Start with one device and see if the problem remains. After a period of use, add in another component and see if the problems reoccurs. Once it does take out that unit and add in others, in the same manner, to see if others cause problems or the number of devices is an issue.

Jan 07, 2014 | Denon Audio Players & Recorders

4 Answers

Just bought a Yamaha RX-V371 surround sound receiver and the TV audio signal is cutting out. I am running a Samsung LED TV with a single HDMI cable (sound/picture). I tested a smaller tv with a short HDM cable and getting the same issue, intermittent choppy sound. It's driving me nuts and cant figure out why it is happening. The signal monitor on the reciver is showing the signal loss so I know it's not the speaker cables or the HDMI cable. Could it be a setting??


Settings are not the source of intermittent problems.

"Signal loss" is indicated WHERE? So what's going on upstream at the source? ITS cables are a part of this.

My $.02... I never route any signal unnecessarily to or through a device that doesn't enhance or consume it. Hence, my BEST video from each of my several video sources goes directly to my TV/monitor and my BEST digital audio from all sources goes directly to my AVR.

No problems.

Sep 20, 2011 | Audio Players & Recorders

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