![77C8 had the common coil whine (hissing like a cobra) in the PSU. LG sent a guy with a new PSU and now it's completely silent. Only heard of people replacing the 77C8 had the common coil whine (hissing like a cobra) in the PSU. LG sent a guy with a new PSU and now it's completely silent. Only heard of people replacing the](https://preview.redd.it/v51rjz1f9us21.jpg?auto=webp&s=fdd190c79dbde0797704d1189db7d5e382c1e1fd)
77C8 had the common coil whine (hissing like a cobra) in the PSU. LG sent a guy with a new PSU and now it's completely silent. Only heard of people replacing the
![LG 77 Inch Class OLED C9 Series 4K (2160P) Smart Ultra HD HDR TV - OLED77C9PUA 2019 Model - Walmart.com LG 77 Inch Class OLED C9 Series 4K (2160P) Smart Ultra HD HDR TV - OLED77C9PUA 2019 Model - Walmart.com](https://i5.walmartimages.com/asr/68c5abac-de23-4dc6-b854-9f92109c2fe2_3.0dfbac5ba489a26f3dc30af3dcade811.jpeg)
LG 77 Inch Class OLED C9 Series 4K (2160P) Smart Ultra HD HDR TV - OLED77C9PUA 2019 Model - Walmart.com
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