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The LG 37LF65 LCD television, was released in 2007 and available in sizes: 32'' 37'' 42''.

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it powers on and it I tap the back it comes on now and again

Help folks my tv has sound but picture don't come on . When I switch it on , it powers on and it I tap the back it comes on now and again but when it comes on its all good and works. I took a picture and believe I've found the problem but not a clue how to fix it.

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'''++@diddley++'''

you did not tell us what make and model you TV is or what you think the problem is. If it works after you tap it, it most likely is a loose connection, colder solder etc. You need to give us a bit more information.

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