# LG OLED eARC no sound

> LG OLED eARC no sound to the soundbar? HDMI cable, eARC port, pass-through and software — rarely a PSU issue.

## In short

If **LG OLED eARC has no sound**, it is usually cable (eARC-capable), wrong HDMI port, bar mode, CEC, or software — not the **PSU** (Power Supply Unit / power board).

Try pass-through/optical, test TV speakers, update TV+bar firmware.

## Practical checks

Audio path:

- eARC-capable HDMI cable
- Only the eARC-marked port
- CEC on
- Bar set to eARC/ARC
- TV firmware current

## Vs PSU

Only with dead set / blink / standby failure might PSU overlap — [stays black](/en/blog/lg-oled-bleibt-schwarz) / [repair](/en/reparatur). Related: [HDMI no signal](/en/blog/lg-oled-hdmi-kein-signal).

## AmparioWeb

We help with boards — pure audio: checklist and [support](/en/support). Dead set: [repair](/en/reparatur).

## FAQ

**Optical works, eARC not?**

Often cable/port/handshake — not PSU.

**Related to HDMI no signal?**

Yes — [HDMI no signal](/en/blog/lg-oled-hdmi-kein-signal).

**AmparioWeb?**

For board issues yes. Pure audio: [support](/en/support).