I have a dell e198fp monitor con nected to a dell latitude d400. Got monitor from daughter who said monitor was working then went black and stayed same. I get a blinking green power button with a black screen only. Is this a free service?

I suspect you will find that there are bad capacitors on the power supply board. If you aren't handy with a soldering iron, however, I would not recommend this repair. It can be easy to permanently damage things. If you aren't afraid of that, however, give it a try.

There are two that I have found that typically fail (680 microfarad, 16 volt). They usually "bulge" on top after failing. I have found that the replacement value doesn't seem to be too critical. I wish I had written down the actual designators for these caps (maybe next time I repair one of these monitors).

WARNING! DISCONNECT POWER BEFORE DISASSEMBLING THE MONITOR AND DO NOT RECONNECT POWER UNTIL ALL SHIELDING IS REINSTALLED!!! DANGEROUS LINE VOLTAGE WILL BE EXPOSED!!!

Once you get the bezel apart and get down to the metal shielding, slide the shield on the right hand side to remove (arrows pointing to each other). There will be four connectors underneath this shield to power the backlight. Disconnect these four connectors, paying close attention to where they were connected.

Disconnect the small ribbon cable on the other side connecting to the front panel controls...There is a small black tab that will flip up to allow removal of the ribbon cable. CAUTION! THESE CABLES ARE DELICATE...DAMAGING THE CABLE OR THE CONNECTOR WILL DESTROY YOUR MONITOR.

There are four screws holding the power supply section to the LCD itself (two on each side). Once you remove these screws the rear shield (and power supply section) will start to separate from the LCD. There is another ribbon cable between the power supply section and the LCD panel...AGAIN...DO NOT DAMAGE THIS CABLE OR CONNECTOR! Squeeze the two black tabs on either side of this connector to remove.

You should now have the power supply board exposed. Remove the screws securing the power supply board to the shield. You will need to disconnect the connector attaching the AC power inlet to the board in order to access the top side...

The failed capacitors should be readily apparent. Replace them, re-assemble and test.

That's it