HDMI ARC NO AUDIO
LG TV & Audio · OLED65C4PUA 65" Class C4 4K OLED evo Smart TV
Audio is not passing through HDMI ARC or eARC connection to a soundbar or AVR. Ensure HDMI cable is on the port labeled ARC (typically HDMI 2). Enable SimpLink: Settings → General → Devices → SimpLink → On. Set audio output: Settings → Sound → Sound Out → HDMI ARC. Set Digital Sound Out to "Pass Through" or "Auto." For eARC, use an Ultra High Speed HDMI cable and enable eARC in HDMI Settings.
Error HDMI ARC NO AUDIO on the LG TV & Audio OLED65C4PUA 65" Class C4 4K OLED evo Smart TV means: ARC/eARC No Audio Output. The top-ranked community fix is “Replace HDMI Cable and Update TV Firmware” (medium difficulty, ~45 min, DIY cost: $15-$30). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · tv
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many tv repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $120-$180.
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
OLED Panel Over-Temperature
App Freezes or Crashes
Audio Out of Sync with Video
Horizontal or Vertical Banding
Power Supply Overcurrent / Short
Main Board Failure
Inverter / Backlight Driver Failure
T-CON Board Communication Error
The LG TV & Audio OLED65C4PUA 65" Class C4 4K OLED evo Smart TV has 8 other known error codes:
Error code HDMI ARC NO AUDIO also appears on 6 other LG TV & Audio models:
Ad Space — banner
Replace ADSENSE_PUBLISHER_ID in AdUnit.tsx