Samsung TV & Audio QN65QN90CAFXZA 65" Class QN90C Neo QLED 4K Smart TV NO AUDIO Error Fix: No Sound from TV Speakers

Error code NO AUDIO on the Samsung TV & Audio QN65QN90CAFXZA 65" Class QN90C Neo QLED 4K Smart TV means: No Sound from TV Speakers. TV displays picture but no sound from internal speakers. Check mute and volume. Verify sound output: Settings → Sound → Sound Output → select "TV Speaker." If previously connected to soundbar via ARC or Bluetooth, sound may still route externally — disconnect ARC cable and Bluetooth devices. Change audio format: Settings → Sound → Expert Settings → Digital Output Audio Format → set to "PCM." Run Sound Test: Settings → Support → Device Care → Self Diagnosis → Sound Test. If sound test works, issue is input-specific. If no sound on test, internal amplifier or speakers may have failed — check speaker wire connectors on main board.

The most successful fix is "Test and Replace Internal Amplifier or Speaker Assembly" (hard difficulty, ~90 minutes). Estimated DIY cost: $0-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Test and Replace Internal Amplifier or Speaker Assembly") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Plastic pry tool.

DIY cost: $0-$20. Professional repair typically costs $180-$300. Many homeowners save money by trying the top-ranked community fix first.

The Samsung TV & Audio QN65QN90CAFXZA 65" Class QN90C Neo 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 NO AUDIO also appears on 4 other Samsung TV & Audio models: QN55LS03BAFXZA 55" Class The Frame QLED 4K Smart TV, QN65Q80CAFXZA 65" Class Q80C 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.