HP2009F turns off suddenly

SOURCE: HP w2007 monitor will not turn on.

The only troubleshooting step I can offer here, is unplug it, and press the power button down for about 15-20 seconds, to flush any trickle power remaining in the unit. Then plug it back in, hook it up and try turning it on again. If this solves it, great! If it doesn't though, then I would check either with HP directly or with your place of purchase to see if your issue can be covered under limited/extended warranty. If you are out of warranty though, LCD repairs tend to jump pretty high, and usually end up being more than what the monitor is worth, so it may be more economical to replace it at that stage.

SOURCE: worked fine this am now black screen blue power button

This is usually the inverter/power board failing. If it's under warranty, you should return for repair/replacement, if not, you can search for online the inverter/power supply board - it can be as expensive as finding a good clean used monitor, so many people choose to not go the repair route.

Good luck!

SOURCE: mx75 monitor turns off when I awaken my computer

right click on desktop select properties(screen saver ) select monitor button in that select turn monitor never.(configure carefully)

SOURCE: power button lockout on hp2009f

Hold the power button for about 30 seconds. I think this disengages the lock out.

SOURCE: HP vs17 (PK657AA) problem: the image is displayed for 3 seconds

first try entering VGA mode in the startup menu. u can get the startup menu by pressing the F8 key immediately after the POST screen. if the screen stabilizes try changing the resolution to 1024 by 768 which should work in normal mode. if that doesnt work then the monitors internal bulbs may be burnt. an electrician may fix this problem for you.