Black screen I have a dell 1703fps flat panel monitor the screen just stays black but the green led is lit and turns off when i press the buttin but nothing else happens it just stays black

If the light is green, I suspect that the backlight has gone out on you. This could also be caused by you having the brightness turned all the way down.

You may have bad backlight inverter board (shorted transistors, transformers, need test lamp to verify), or worst case the lamps assembly (need lamp tester to verify).
You can check and see if the power supply is putting out the 12vdc for the inverter board first and go from there.
http://www.lcdrepair.us/1703fps-inverter.html

http://www.lcdrepair.us/1703fps-power.html

If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

You may want to verify if the computer is the one that do not turn on. Please check if you see the fan on your computer is working and the LED in the mother board is lit.

IF the computer is working and no display on the monitor, despite seeing a green light on the monitor display, this means that monitor is well connected and communicating well with the cpu. Better check the inverter light on the monitor. Replace busted lights. These are responsible for the image you see in your lcd monitor. If the inverter lights are busted then you'll see only black screen.

Hi ,
Check when you boot the system is there any display coming and when Operating system boots you get any Balck screen if it comes then there is a issue with the Graphics card in the system.

Probably a bad power supply in the monitor. One of these days it will go black and stay that way.

i think if you can service your monitor please see all the filter capacitor i think capacitors leak and need for replacement.

I ended up fixing my problem, but I'm not sure what the solution is. I had some faulty electrical equipment that I was using to power the monitor (220V to 110V converter and a bad power strip) and I got rid of them. I was using the converter because I moved to Israel and I thought I needed to feed the monitor only 110V, but I now realize that the power cord for the monitor has a built-in converter that accepts 220V input. Now the monitor is plugged directly into the wall and is working fine. Try using a different power source (maybe the wiring or plug you're using is faulty). Good Luck!

it seems tht the monitor has gone bad & needs to be replaced....try running a monitor self test by unplugging the monitor cable frm the back of the cmputer & make sure the monitor is receving power frm the wall outlet....chk if the monitor displays anything......let me knw if it wrks

No, this is typical problem for defective inverter. Mostly screen appears for some seconds and then turn to black. If you are technician, you can use this link :-).
http://www.lcdrepair.us/1702inverter1900x.html

This may not because of LCD.Have you try to use other monitor to confirm that you PC is OK?