How can I repair my asus lcd monitor? (blinking blu led)

I would like to repair my asus lcd version vk222s monitor. The problem is that when turned on the monitor led keeps blinking (blue! not orange!). I have read around and it seems to be a power problem? what spare parts do I need? The whole power supply board to which the power cord is attached I guess?

Could be a number of problems and would require some troubleshooting to narrow it down. But if you can get a replacment power board then swap that out and see if it works.