My Princeton monitor VL1918 keeps blinking on and

eben161, you might try replacing some "electrolytic filter capacitors" on the "switch-mode-power-supply" printed circuit board. Try to obtain new ones that have temp rating of 105 deg centegrade. remember to replace them + to + and - to - !!! don't screw it up!!! here are some of the values you will need to purchase. 470micro farad (uf) and 2200uf and all should have a voltage rating no lower than 35vdc please report back with the name of the manufacturer you find on the original "failed" ones you remove from the unit. even if they don't look bad (swollen, leaky) replace them all with new one's. If you won't do the work you can also check to see if Princeton can swap you a refurbished unit for your old+cash. But first you should read all the posts that have been written on this model lcd monitor and how they were fixed! I'm 12fixlouie If this response was helpful to you, please rate it on fixya. Bye for now.