LCD computer adjust the contrast of how bad do?

Home of the liquid crystal display to a bad summer, the regulation of the small screen of the bar's logo on the screen automatically posted on the central, brightness and then automatically transferred to the maximum, it is dazzling.At this time all the buttons are a failure, TU That is not useful, by the winter on the good, just like the screen button at the bottom of the regulation of Fan Chao, a bit like a short circuit.Errant ask you, this is why, how should you fix?

know if the power of words, you can open their own, the key to open the circuit board at the top of the key removed, another good, not only To the maintenance shop.In the words of Paul to guarantee it.