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out of sync ARC

Samsung Soundbar loses audio/video sync or disconnects when connected via HDMI ARC

out of sync ARC

If you notice that your Q600A, A650, or T650 soundbar is out of sync with your TV or randomly disconnects when connected via HDMI ARC, there is a simple solution to correct this issue. 

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Samsung T450 soundbar has no sound when watching TV source
If your soundbar sound drops out, or is not making sound while watching the TV source, there is an easy way to resolve the issue. Generally if you change the channel on your TV or Set Top Box the sound should come back, but to permanently fix the issue you can update the firmware on your soundbar.
 Soundbar makes intermittent "siren" sound while watching TV
Soundbar makes intermittent "siren" sound while watching TV
If you happen to notice an odd sound from your soundbar that sounds like a siren while watching TV, there is a simple explanation and solution. This may only occur when your TV's sound mode is set to Adaptive or Smart. Simply updating the software on your soundbar will take care of the issue.
 Soundbar or subwoofer makes abnormal sound
Soundbar or subwoofer makes abnormal sound
If your soundbar or subwoofer is making an abnormal or distorted sound, in most cases, it requires a firmware update, but checking connection cables can also solve the issue.
 Intermittent sound drops when connected via HDMI-ARC
Intermittent sound drops when connected via HDMI-ARC
You may notice that the sound drops intermittently or stops working when your soundbar is connected to your TV via HDMI-ARC. If this is happening, you can fix the issue with a firmware update.
 Soundbar reconnects via Bluetooth after being deleted from TV
Soundbar reconnects via Bluetooth after being deleted from TV
You may notice that your soundbar is automatically reconnecting to your TV via Bluetooth, even after you deleted it from the list of paired Bluetooth devices. The soundbar did not erase the Bluetooth MAC address from its memory, but a simple firmware update will correct the issue.
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