I've had this big ole TV for a few years now, and I've periodically been experiencing a sound outage. I have a Sony XBR54x930c, with a LG soundbar connected via optical. I have a DirecTV box in HDMI 1 and a PS4 on HDMI 2.
I can't pinpoint when this happens, but I think it might be when I'm changing between HDMI or other sources, and out of nowhere the soundbar stops working, and I can't get any sound out of the TV speakers (except for system sound) or soundbar. I don't know if that part is a Sony problem or a soundbar problem. But then, to combat this, I figure I'll go turn the audio output on the TV to the internal speakers rather than the soundbar. Mind you, as I'm navigating the system menu, I'm getting system sounds out of the TV speakers. When I change the setting to TV speakers, nothing happens -- no sound, not on any input. Yes, I've checked to make sure I'm not muting either the soundbar or TV speakers.
The only way I've gotten the sound to work again is to do a factory reset, which is not ideal, as this happens every few weeks.
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We regret to hear that you're having this issue with your TV. To isolate the issue, let's check first if your TV has the latest software with version PKG3.865.0135NAB. If the TV's software is not up to date, perform the software update as soon as possible. If the TV doesn't need an update, then let's proceed with the troubleshooting steps below:
General troubleshooting steps to perform
Verify the audio cord is fully inserted into the TV and the Sound bar. Check these suggestions to make sure the TV and Sound bar are accurately connected:
Connect the supplied audio cable from the TV audio output jack to the AUDIO IN jack of the Sound bar.
If the supplied audio cable does not fit into the output jack of the TV, connect the plug adapter (also supplied) to the audio cable. Then, reconnect the audio cable to the audio output jack of the TV.
If the TV has a Fixed/Variable setting, the volume of the Sound bar can be changed by adjusting the TV volume as long as you set the sound output jack on your TV to Variable.
NOTE: If you set the TV to the Variable setting and you are not able to get an acceptable level of volume from the Sound bar, set the sound output jack on the TV to Fixed. Then try adjusting the speaker volume again.
Set the Mute function on your TV according to what you have the Fixed/Variable function set at:
If the TV is set to the Variable setting, make sure Mute is set to off.
If the TV is set to the Fixed setting, set the TV volume to minimum or Mute.
Troubleshooting steps you can do with the Sound bar speaker system.
Turn on the Sound bar. If the Sound bar is already on, make sure it is in Standby mode.
Set the Sound bar to its corresponding input used for the connected device.
Adjust the volume on the Sound bar.
NOTE: If the sound output level of the TV cannot be adjusted, change the volume on the Sound bar.
Perform a factory reset for the Sound bar speaker system. For further details on how to do the factory reset, check the operating instructions that came with the unit. Go to Manuals, Specifications & Warranty.
Note: Refreshing the connection between the TV and the connected devices are also applicable.
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