Samsung TV & Audio QN65Q80CAFXZA 65" Class Q80C QLED 4K Smart TV AUDIO SYNC Error Fix: Audio Out of Sync with Video (Lip Sync)

Error code AUDIO SYNC on the Samsung TV & Audio QN65Q80CAFXZA 65" Class Q80C QLED 4K Smart TV means: Audio Out of Sync with Video (Lip Sync). Audio and video noticeably out of sync. Common with ARC/eARC, Bluetooth, and streaming apps. For HDMI ARC: adjust delay — Settings → Sound → Expert Settings → Digital Output Audio Delay → increase or decrease in 20ms increments. For Bluetooth, inherent 100-300ms latency — use AptX Low Latency devices or wired connection. For streaming apps, clear cache or try a different app. For game consoles, enable Game Mode: Settings → General → External Device Manager → Game Mode Settings → On. eARC has lower latency than standard ARC.

The most successful fix is "Service or Replace HDMI ARC/eARC Board" (medium difficulty, ~45 minutes). Estimated DIY cost: $10-$25. HomeMD has 2 community-ranked fixes for this error.

This error is rated low severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Service or Replace HDMI ARC/eARC Board") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Multimeter, HDMI tester (optional).

DIY cost: $10-$25. Professional repair typically costs $150-$220. Many homeowners save money by trying the top-ranked community fix first.

The Samsung TV & Audio QN65Q80CAFXZA 65" Class Q80C QLED 4K Smart TV has 8 other known error codes, including: 2 BLINKS (Power Supply Board Fault), 5 BLINKS (LED Backlight / Driver Protection Shutdown), 6 BLINKS (Main Board / T-CON Communication Failure), ANYNET FAIL (Anynet+ (HDMI-CEC) Not Working), APP CRASH (App Freezes or Crashes), and 3 more.

Error code AUDIO SYNC also appears on 4 other Samsung TV & Audio models: QN55LS03BAFXZA 55" Class The Frame QLED 4K Smart TV, QN65QN90CAFXZA 65" Class QN90C Neo QLED 4K Smart TV, QN65S90CAFXZA 65" Class S90C OLED 4K Smart TV, UN55CU8000FXZA 55" Class CU8000 Crystal UHD 4K Smart TV. The fix may vary by model, so check each model's specific page for tailored repair steps.