Hello! @subzero1970,
Thank you for posting in the Roku Community!
Thank you for contacting us about the buzzing adapter with your TCL Roku TV. We are happy to assist you.
To ensure a thorough diagnosis of your TV's hardware, we will coordinate with our friends at TCL, who have expertise in this area. If any hardware issues are identified, they will be able to present you with available options.
You can find their support options at TCL support or you can reach them at 1-877-300-8837
Regards,
Arjiemar
Arjiemar
Roku Community Moderator