Home Product SupportIdentify a code

TV & streaming · eARC

HDMI eARC or ARC audio return works on one input, app or source but not another

When a TV function works on another input, app or source, isolate that signal path before changing the whole television. This record isolates HDMI eARC or ARC audio return through TV speakers versus ARC/eARC sound system and one HDMI source.

Direct answer

When a TV function works on another input, app or source, isolate that signal path before changing the whole television. For HDMI eARC or ARC audio return, first test PCM/stereo first, confirm the labeled ARC port and bypass other HDMI devices.

What this covers

  • HDMI eARC or ARC audio return with this exact failure state
  • Diagnosis across TV speakers versus ARC/eARC sound system and one HDMI source
  • Customer-accessible observation, settings and external components

What it does not cover

  • ×A displayed manufacturer error code with a different documented meaning
  • ×Live electrical, sealed-system, internal battery-cell or gas repair
  • ×A claim that every model exposes identical controls
Try in this order0 of 4 completed

  1. Capture the exact failure state

    Reversible

    Name the failing input, app or source and one that still works. Expected behavior: send TV and app sound to the selected sound system without renegotiation loops.

  2. Isolate the component boundary

    Reversible

    Test PCM/stereo first, confirm the labeled ARC port and bypass other HDMI devices. Swap only the source, HDMI path, app or account while keeping the display and network unchanged. Boundary to separate: TV speakers versus ARC/eARC sound system and one HDMI source.

  3. Correct only the proven cause

    Reversible

    Enable matching CEC/eARC controls and retain the simplest stable format. Repair the isolated source, app session, cable path or format mismatch.

  4. Verify and stop safely

    Reversible

    Retest both the failing and known-working source after a full restart. Stop for electrical noise, heat, damaged HDMI sockets or repeated receiver protection.

Evidence ledger

Sources behind this answer

Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.

01
Samsung SupportSamsung TV support

Official Samsung TV manuals, diagnostics, software and service entry point.

Exact questions

Common follow-ups

What should I check first when HDMI eARC or ARC audio return has this problem?+

Test PCM/stereo first, confirm the labeled ARC port and bypass other HDMI devices.

Why not factory-reset immediately?+

The useful boundary is TV speakers versus ARC/eARC sound system and one HDMI source. A reset can erase state without proving which side failed.

When should I stop troubleshooting?+

stop for electrical noise, heat, damaged HDMI sockets or repeated receiver protection.

Change recordAug. 17, 2026 — Published as a distinct component-state record for HDMI eARC or ARC audio return; it is not a manufacturer-name permutation.
Report a correction
Wrong device or version?

Match the path before repeating the steps.

Match another device