AHHH! please backing me beside my TV!!?

OK i by accidently locked my tv yesterday. it's a Sinotec 54cm and i can't watch tv or transform the channels or anything lone switch it on and off. i can't find the book anywhere so i be hoping someone might know how to unlock it..please help!

gratitude so much!

Answers: on the remote go to menu push button and hit unlock or call store you bought the tx from.

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