TCL 65Q8C 65 Zoll QD-Mini LED-Fernseher, 4K HDR Premium 4500, ZeroBorder™, Smart Google TV, CrystGlow WHVA-Panel, Audio von Bang & Olufsen, 144Hz Motion Clarity Pro, Dolby Vision IQ & Atmos — Error codes & fixes

Troubleshooting guide for the TCL 65Q8C 65 Zoll QD-Mini LED-Fernseher, 4K HDR Premium 4500, ZeroBorder™, Smart Google TV, CrystGlow WHVA-Panel, Audio von Bang & Olufsen, 144Hz Motion Clarity Pro, Dolby Vision IQ & Atmos. Diagnose an error code and find the fix.

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

Dead / stuck pixels

dead-pixels

The panel has dead or stuck pixels, often a panel defect.

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

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