Re: Dell SE198WFPf - Backlights go off after 2 seconds



Here's a picture.



I had to slice the end cap in half to get it off. I was able to resolder the wire and get the silicone cap back on. Once I replaced the yellow tape that was around it and put the assembly back in the screen frame it was fairly secure....

Re: Dell SE198WFPf - Backlights go off after 2 seconds



I got idea from romansroad post but wasn't able to find the thread he mentioned.



No, not burnt at all. It just looked like it was a weak solder point that broke apart. I soldered it back and now it's working again.

This wasn't my monitor originally so I don't know if it was dropped or how else the wire could have separated so cleanly--especially packed so snugly in that end cap....

Re: Dell SE198WFPf - Backlights go off after 2 seconds

Thanks. That helped--I hadn't thought of prying bezel from inside. A credit card sized mini scraper made it a breeze with no scratches or broken tabs. I slid the beveled edge between the screen and bezel and lifted straight up, working my way around the screen to the button corner.

I got the backlight apart and found that a negative lead was indeed separated from one of the ccfl tubes. If that doesn't fix it, I'll check each ccfl with the resistor method.

Re: Dell SE198WFPf - Backlights go off after 2 seconds



Any chance of publishing the steps to open the case. I'm worried I'll cause more damage than necessary guessing.

Excellent thread-- I've got the same exact problem of screen going to black after a couple of seconds....