We bought the floor model of the LG RU-52sz51D and the front control panel was locked when we got it. Does anyone know how to unlock it? We just need to get into the service mode and even the service tech doesn't know how to unlock it.
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press the menu button on the front panel while holding button on panel press and hold the menu button on the remote control service menu will appear and then keep pressing the menu button until you come to lamp hour resetting press ok on remote and now lamp hour is reset
Sounds like youre lamp might gave blown pull it out and see if it is shattered check your owners manual to see where it is located most of these are on the right side as you stand in front of the tv but some are also in the back.