We have been getting more and more of these units in our service center with bad power supplies. If you have a 940N with a blinking power light and no display, is slow to show a picture, or has a wavy picture then this guide should help you get your monitor back going again. The most common power board used in this model is the Bizet-17 power supply board, also know as BN44-00123A. There is another board too, so check your board model number. We will post the parts detail on that board too. The typical problem with the monitor is a failure of capacitors on the power supply board. The repair is fairly easy, just requiring replacing 6 capacitors to bring the unit back to life. Read more