Dell monitor light blinking no picture - Dell UltraSharp 1905FP 19" LCD Monitor

You can look at my pictures to see what is usually wrong with your DELL monitor:
http://s807.photobucket.com/home/budm/allalbums

Most of the time are due to bad caps, bad soldering works, shorted transisotrs, etc.
Replacement board: www.lcdrepair.us

I assume that you already try this monitor on another PC to verify that the problem is in the monitor, in this case you need to open it up and inspect the fuse, transitors, solder connections on the power/inverter board, see failed Dell monitors here for guide: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further.

Look for bad fuse and transistors in the inverter circuits, see picture of failed Dell monitors here: http://s807.photobucket.com/home/budm/allalbums

un plug the monitor cables power cord everything turn off the computer the reconnect everything power back up turn on the monitor should work then

here's your answer probably not what you wanted to hear...
https://www.dell.com/community/Monitors/Monitor-Won-t-turn-on-Blinking-Green-Light/m-p/2558319

-Possibly due to surge.

-Get new one.

Good luck

Mai

Is the power blinking amber? This is a DPMS power-save mode. With the computer disconnected and the monitor on, do you see the colored self-test block floating around? With the monitor on, computer connected, and you still have no image displayed, take a bright flashlight and examine the screen closely. If you can see a very dim display in the screen, the fluorescent tubes which light up the *background* and provide the vivid picture(sort of like a how an x-ray picture viewer works) are defective. The power light blinking may be the power supply sensing the non-functioning tubes or it could just be bad. If your display is under warranty, replace it. If not, trying to have the monitor repaired for this type of problem is almost as costly as a new one--and there won't be an active warranty on anything else that might fail. Hope I helped you.---Rick

If it is your computer that is in hibernation then blinking on the monitor light is normal

Just bring your computer out of hibernation and the screen will come back to life too

I have made a solution to this and it can be found on my website here:
http://www.dorchestercomputerrepairs.com/1800.html
Hope this helps.
sparkyuiop

Sounds like capacitors in the power supply. Open it up and check for any swolen Caps.