ARC CONNECTION FAIL
LG TV & Audio · SP7Y 5.1 Channel 440W Soundbar with Meridian & DTS Virtual:X
Soundbar connected via HDMI ARC but no audio from TV. Ensure HDMI cable on ARC/eARC port (typically HDMI 2 on LG TVs). Enable CEC/SimpLink on TV. Set TV Sound Out to HDMI ARC. Try different HDMI cable. Power cycle: turn off TV → soundbar → unplug both 30 seconds → plug in soundbar first → TV → turn on soundbar → TV. For eARC, use Ultra High Speed HDMI cable.
Error ARC CONNECTION FAIL on the LG TV & Audio SP7Y 5.1 Channel 440W Soundbar with Meridian & DTS Virtual:X means: HDMI ARC Connection Not Established. The top-ranked community fix is “Test and Replace HDMI ARC Board in Soundbar” (hard difficulty, ~60 min, DIY cost: $0). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · soundbar
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While many soundbar repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $150-$250.
Amplifier Board Failure
HDMI ARC Board Failure
Soundbar Turns Off Unexpectedly
Bluetooth Pairing Failed
Sound Distortion at Volume
Unsupported Audio Format
All LED Indicators Blinking — System Error
Steady Red LED — Protection Mode
The LG TV & Audio SP7Y 5.1 Channel 440W Soundbar with Meridian & DTS Virtual:X has 8 other known error codes:
Error code ARC CONNECTION FAIL also appears on 2 other LG TV & Audio models:
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