Dell monitor only showing boot screen

I've got this old Philips 200 VW LCD Dell, and it’s acting up. It shows the startup screen just fine, but then everything goes dark. You can still see faint outlines of the image if you look closely, though. Is there any way to save this thing, or am I just looking at a lost cause where the repair cost outweighs the value?

Have you tried running it on a different graphics card or maybe a completely different PC?

I tested it on a different computer too, so it’s definitely an issue with the Dell. If there's any way to fix it, I'm all ears.

Maybe just hand it off to an electrical engineer to take a look. It could be something tiny like a capacitor, or maybe it's just not worth the hassle...

Open it up and take a look. Like fadedorca66 suggested, maybe a capacitor has bulged out or something. If that's the case, it should be an easy fix and won't cost much.

I popped the hood and took a good look at the power connector and the VGA input, but honestly, everything looks perfectly normal. No obvious signs of damage or anything weird. I’m just stumped—when I boot the PC, all the BIOS text and numbers show up just fine, but the second it tries to load Microsoft Windows, the screen goes dark. It’s weird because you can still kind of see faint outlines of the image if you look closely enough.

It’s pretty obvious that the graphics aren't particularly demanding, but then again, the moment you actually need to crank up the settings, the whole thing just falls apart.

Right now, whenever I pull the plug and pop it back in, the image pops up in about five seconds. There’s this thin, high-pitched whining sound that just lingers for a bit. Honestly, I’m thinking the issue is somewhere on the Dell power supply board—maybe a blown capacitor or some transistor attached to one of those aluminum heat sinks.

If you were actually an electronics technician, you wouldn't be asking this here. You can't fix this alone, and nobody can tell you if it's worth the cost until the exact fault is identified.
Give it to an experienced technician. They'll likely solve 99% of these issues; my guess is the power supply is faulty, perhaps the 5V rail isn't delivering a steady 5V.
Then again, it could be anything. Modern Dell units have far more complex circuitry than a standard Roku, and most of the components are hidden directly behind the panel.
Stop tinkering with it yourself. You could be killed; there is high voltage present here exceeding 110V.
Agree on a flat rate upfront—for instance, $67—and stipulate that if they can't fix it, you pay nothing.

First, check your graphics card settings in Microsoft Windows. Ensure the refresh rate is set to 60Hz rather than 100Hz or something else. If the hardware isn't dead, it should work perfectly at 60Hz.

John Turner34 said:If I were an electrician, I’d probably be asking around here, but honestly, you can't tackle this on your own. It's hard to say if it's even worth fixing when you haven't pinned down exactly where the fault lies.
Hand it over to an old-school electronics guy and he’ll probably fix it 99% of the time. My gut says it’s the power supply. Could be that the 5 volts aren't actually hitting the 5 volt mark... things like that.
Honestly, it could be anything else. You look at a Dell today and there’s probably more electronics packed in there than what you'd find in a Roku, even if you can't see it. It's all just tucked away right behind the screen.
Don't go poking around in there. Seriously. You could end up dead—there’s enough high voltage in there to take you out.
Just hammer out a price with them beforehand if they end up fixing it—you know, just to be safe. $67And if all that fails and you can't pay a single cent...

First thing I'd do is check your graphics card settings in Microsoft Windows. Make sure it's actually set to 60Hz and hasn't somehow defaulted to 100Hz or something else weird. If the Dell isn't broken, it really should be working perfectly fine at 60Hz.

Look, I’m obviously no electrical engineer. If I were, I wouldn't be asking questions on a forum like this. The actual electronics inside a Dell aren't even that complicated, really. Most pros won't even bother poking around the individual circuit boards; they just swap out the whole unit, which is pretty much what I'd end up doing anyway. But, following some advice from a fellow member, I think I'll start by replacing all the capacitors and see where that gets me. I've got nothing but time on my hands, so I might as well tinker with this little thing. And don't worry about the high voltage—I can handle a little shock.

These aren't professionals; they're more like amateurs who don't understand electronics or basic circuitry.
Of course there's more than just two circuit boards involved, even if you can't see them right away.
Why would anyone bother replacing fifteen capacitors if that's how many are actually in there?
Usually, you can tell when one fails—either it's bulged or there's discoloration on the board—but it isn't always that obvious.
It could also be a faulty potentiometer if the unit has one...
Have you tried resetting the monitor or running an auto-adjust?

Best,