For official repair support or to find a local service center, you can use the LG Support Locator to book a technician. How to Fix S Protection on LG Sound Systems | Expert Q&A
: Unplug all speaker wires from the back of the unit. Check for any stray copper strands that might be touching other terminals or the metal chassis. s003-001-lg
When an LG audio system (such as a soundbar, home theater, or receiver) displays "S-PROTECT" or "S-PROTECTION," it indicates that the unit's internal protection circuit has been triggered to prevent damage to the amplifier. For official repair support or to find a
: This usually occurs due to an internal short circuit . This can be caused by: Frayed or touching speaker wires. A faulty speaker drawing too much power. Internal component failure within the amplifier circuit. When an LG audio system (such as a