“Is the power cable 2 prong or 3 prong? I have a tv that is two prong that has a grounding hum with my surround sound setup. Our TV with a 3 prong power cable doesn't have this issue.”
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The U7 (like most modern TVs) uses a 2-prong power cable. A grounding hum can be due to multiple issues, and not always the lack of a plug with the extra grounding prong. The hum can be due to interference caused by an A/V cable (even HDMI), mismatched power requirements, a failing transformer, etc. From experience, audio equipment is much more susceptible to a grounding hum than TVs with built in speakers - regardless of the electrical plug.
Sorry, there was a problem. Please try again later.2 Prong. Mine does not have a grounding hum noise are use the TV sound and my surroundsound system with it. May need to return it or have it worked on.
Sorry, there was a problem. Please try again later.Hi Hisense Customer, thank you for your interest in the Hisense 65U7K. The TV has a 2 prong cord. If you have any further questions or concerns please give us a call at 1-888-935-8880 or email us at Service@Hisense-usa.com. Thanks again, Harley with the Hisense Support Team.
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