TCL 65Q6C 65 Zoll QD-Mini LED Fernseher, 4K HDR Premium 1000nits, Smart TV mit Google TV (Dolby Vision IQ & Atmos, Onkyo 2.1 Soundsystem, 144Hz Motion Clarity Pro, Game Master) — Error codes & fixes

Troubleshooting guide for the TCL 65Q6C 65 Zoll QD-Mini LED Fernseher, 4K HDR Premium 1000nits, Smart TV mit Google TV (Dolby Vision IQ & Atmos, Onkyo 2.1 Soundsystem, 144Hz Motion Clarity Pro, Game Master). Diagnose an error code and find the fix.

HDMI no audio

hdmi-no-audio

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

Source: Samsung TV support — no signal / HDMI Confidence: 80% Verified Aug 9, 2026
2 fixes available

No signal / black screen

no-signal

The TV or monitor shows no signal, often from an HDMI issue or a wrong input.

Source: Samsung TV support — no signal / HDMI Confidence: 90% Verified Aug 9, 2026
2 fixes available

Won't power on

no-power

The soundbar does not turn on, often from a faulty power supply or a blown fuse.

Source: Samsung TV support — no signal / HDMI Confidence: 85% Verified Aug 9, 2026
2 fixes available

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