Al2016w b monitor comes on then cuts off .

That is s typical problem with monitors usually it results from power fluctuations. That means that the capacitors in your monitor have been burned out. The capacitors in your monitor have the ability to hold down the power long enough for your display. When you switch on the monitor, the power is kept in those capacitors so that you can see the display. Faulty capacitors will only hold down the power for a maximum of 8 seconds depending on how bad the capacitors. Here is the solution, open up your monitor using a flat-sharp object starting from the bottom splitting it out working your way to the top. You will notice finger-like structures that hold down the covers together and make sure you do not break one of them.. When you open it identify the circuit board where the power supply is connected, that is where the capacitors are located. Check for leaking or bulged capacitors, those are the faulty ones. Go and buy a new one and replace the faulty one.