Hisense U9N 75" 4K ULED X Flagship Smart TV (2024) HDMI-ARC Error Fix: HDMI ARC Audio Not Working

Error code HDMI-ARC on the Hisense U9N 75" 4K ULED X Flagship Smart TV (2024) means: HDMI ARC Audio Not Working. Audio does not pass through HDMI ARC or eARC to a connected soundbar or receiver, enable CEC in TV settings, try a different HDMI cable, ensure the soundbar is set to HDMI input

The most successful fix is "Replace HDMI ARC Port Board or Repair Internal HDMI Connections" (medium difficulty, ~60 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 ("Replace HDMI ARC Port Board or Repair Internal HDMI Connections") is rated medium difficulty and takes about 60 minutes. Tools needed: T10 Torx screwdriver, Plastic pry tool, Multimeter.

DIY cost: $0-$20. Professional repair typically costs $150-$300. Many homeowners save money by trying the top-ranked community fix first.

The Hisense U9N 75" 4K ULED X Flagship Smart TV (2024) has 8 other known error codes, including: AUTO-OFF (TV Turns Off By Itself), BACKLIGHT-BLEED (Backlight Bleeding or Clouding), BLACK-SCREEN (Black Screen With Sound), BLINK-NO-START (Power LED Blinks But No Picture), BURN-IN (Image Retention or Burn-In), and 3 more.

Error code HDMI-ARC also appears on 6 other Hisense models: A45H 40" 1080p Full HD LED Smart TV, A6H 50" 4K UHD LED Smart TV with Dolby Vision HDR, U6H 65" 4K ULED Smart TV with Full Array Local Dimming, U7H 55" 4K QLED Smart TV with Quantum Dot and Dolby Vision, U8H 65" 4K Mini-LED ULED Smart TV with 120Hz and Dolby Vision IQ, U8K 65" 4K Mini-LED ULED Smart TV (2023). The fix may vary by model, so check each model's specific page for tailored repair steps.