hdmi-no-audio Troubleshooting

HDMI no audio on the TCL 55C7K QD-Mini LED Fernseher, 55 Zoll, 4K HDR Premium, Dolby Vision IQ & Atmos, Bang & Olufsen Sound, Smart TV mit Google TV, 144Hz, HDMI 2.1, AMD FreeSync Premium Pro, AirPlay 2, Google Assistant

Source: TCL support — TV troubleshooting Confidence: 80% Verified Aug 9, 2026

The TV shows video over HDMI but no audio, often due to an audio output setting.

How to fix HDMI no audio

Check the audio output

Ensure the TV audio output is set to the correct source.

Source: TCL support — TV troubleshooting Confidence: 80% Verified Aug 9, 2026
Difficulty: ★ Est. 3 min

Check the source device

Ensure the source device is outputting audio over HDMI.

Source: TCL support — TV troubleshooting Confidence: 80% Verified Aug 9, 2026
Difficulty: ★ Est. 3 min

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