Display showing PROTECTION - Audio Players & Recorders

Question edited for full 'make model (what it is)'
Question moved from Computers and Internet to LG Audio.

All in the links

Help library: "S-PROTEC" error message in window display - LG

https://www.lg.com > Home > Support Home
Aug 22, 2020 - Amplifier protection arises the moment the device detects potential harm to this very important circuitry component from a voltage fluctuation.

https://www.google.com/search?q=lg+arx9000+s-protection

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Try combination of SURROUND+EXIT+CLEAR to reset

If your washer was working previously please read below.
Thermal Overload Protection

Your washer may display the LE code if the thermal overload protection circuit in the motor has been tripped. The feature is designed to prevent the motor from overheating and causing permanent damage to the washer. To clear the error code, the motor must cool down. Allow the washer to sit for approximately half an hour before restarting the cycle. If the code reappears, the motor may have an issue that requires a service call. Unplug your washer and contact LG.

Do you hear the speaker protection relay click after about 10 seconds when you turn the receiver on? Does the display show PROTECTION on the display? These conditions indicate a bad channel that will keep the receiver from functioning but you still have lights. Steve

Protection on display usually means there is something wrong in the amp

Hello
Check the putput wirings to speakers. If any of them has short circuit, the set will go to protection mode. You can understand it well, as it did worked fine at the repair shope. The set has no fault at all, but the wirings, connects to it have.
Just power ON the set at your home, without connection any output or input to it. See, it will not show any protection mode display. Switch it OFF. Connect the output to speakers, one at a time, and switch ON the set. Just do it for all other speakers. This way, you can find out, which speaker line causes the set to go to protection mode. Fine out the reason.
Never connect any input to the system, until works fine with out showing any protection display.
I helped you somewhat fine, I assumes.
Ok.

If you've disconnected the speakers and the fault is still showing then the fault is internal with the Amplifier and it's shutting down to protect itself from further damage.

Your only solution is to remove the cover and have a look at repairing it yourself or take it to a repair shop.

Sometimes if the power is removed it requires a code to be input, to remove the protection, you will have to contact Kenwood, and ask for the code to clear it. This is an anti theft feature. Often the car dealers have these, or try an auto-electrician.. BTW your English is good.

A picture of protection tab in protection position