“My set is power on but not get any sound (audio) and what I see on screen is: 5-protec and set goes off after a while automatically.”
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The LG XBOOM 700W Main Unit and Speaker System Combo Set goes into 'Protect' mode when it senses an external speaker issue or connection issue. If there has been an electrical surge or power outage, then the internal surge protection inside the home audio device may have been triggered to protect the device from the surge. This is normal. To reset the internal surge protection circuit unplug the AC power cord from the wall for at least 30 minutes. Check to make sure that the unit has proper ventilation. Running the device in a poorly ventilated cabinet can trigger the protection circuit. If you have changed the speakers, Reduce the volume level. If the impedance of any of the speakers is below the rated impedance range indicated on the rear of the home audio device next to the speaker connections, the home audio device may enter the PROTECT mode. Raising the volume with a low impedance speaker will trigger the protection circuit. Check to make sure that your speaker wires are connected properly & that they are not shorting...^IFV
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