Elektronika
TV LG-47LM660S
Servisní menu
https://www.wikihow.com/Display-the-Secret-Menu-in-LG-TVs
https://www.tvfreak.cz/forum/showthread.php/25231-LG-servisne-menu
Samsung ue46f5570ss
Servisní menu
standby reřim --> info --> menu --> mute--> power