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As with any other TV, regardless of brand or manufacturer, the Optical Digital Audio Out on the LG - 55" Class 82A Series QNED AI 4K UHD Smart webOS TV (2025), Model # 55QNED82AUA, has a small, hinged, spring-loaded plastic flap or door, which acts as a dust cover to protect the delicate optical sensor inside when not in use. It is designed to be pushed inward automatically when you insert the optical cable...^Ivan.
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