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Sound and video out of sync | Bose Solo 15 TV sound system
Try playing something else to check if the issue is related to certain media.
Play different content on your system (i.e. a different channel or DVR recording) to determine if the issue is related the content.
Plug in to a different input on the TV.
Plug in to a different input section on the back of the TV using the same cable(s) to determine if the input is the issue. Whichever section you connect to, select the same input using the TV or remote control buttons to hear and/or see the device (e.g. if you connect to HDMI 3, select HDMI 3 using the TV or remote buttons).
Bypass the Bose system.
If the external device has S-video or composite output connections, use either one to connect the device directly to the TV. If this does not solve the problem, the issue is with the external device. Contact the manufacturer of the external device.
Bypass the TV
If the external device is connected directly to the TV, disconnect its audio cables from the back of the TV and connect them directly to the Bose system. If audio from the device plays properly through the system, there is an issue with the TV's audio output settings or audio processing capabilities.