Dell E772C Won’t Turn On. Makes Clicking Noises.

[A Friendly ShyGuy]

Hello, I had recently purchased a Dell E772C CRT for 40$ on Marketplace, and the image was as described for a good half an hour. I locked my PC for a short time, and when I returned I moved my mouse expecting the monitor to turn on [since I have a blank screensaver on], but instead it stopped working period. Now it makes a clicking noise in the bottom-right on the back of the display. I tried different power cables and tried connecting it both directly to VGA and to an HDMI adapter, but it still doesn’t show an image. It doesn’t show the “no cable connected” message when the VGA cable isn’t connected to anything, and the menu doesn’t show up either. I tried running 640x480 at 60hz as the bare minimum useable resolution, and it did show an image, but it would be distorted and the brightness would slowly dim. There wasn’t any real surge that happened or an overload either, since I wasn’t using the monitor at the time that it stopped working. Is this issue fixable or is it better to collect scrap money off of the display?

 

Here’s some videos of what’s happening. It wouldn’t let me upload them to the main page since it’s over 20mb:

https://www.dropbox.com/scl/fi/glckhhfds8vmxjv4jqc2w/IMG_0693.mov?rlkey=9qcfe58tk7oqxd7fnuzytep19&st=2ccr78r7&dl=0
 

https://www.dropbox.com/scl/fi/31e1belga1uobwwqnqaz8/IMG_0694.mov?rlkey=2ckvy93ya3jpy8s7e4pu9ztjn&st=1z5rt2u2&dl=0

[da na]

Flyback transformer could have perished, or a capacitor perhaps. 

You did restart that computer to make sure Windows wasn't the problem, right?

[A Friendly ShyGuy]

17 hours ago, da na said:

Flyback transformer could have perished, or a capacitor perhaps. 

You did restart that computer to make sure Windows wasn't the problem, right?

I tried restarting the PC entirely, I can see the heater glow for a brief second before going dim. It’s a loop where it goes on and off.

 

this is what the heater does:

https://www.dropbox.com/scl/fi/bhbehszx2van6fdm20a34/IMG_0697.mov?rlkey=yt2b0bgjst0f7vh7o2sox35ac&st=dsa4ee2f&dl=0
 

[da na]

7 minutes ago, A Friendly ShyGuy said:

I tried restarting the PC entirely, I can see the heater glow for a brief second before going dim. It’s a loop where it goes on and off.

That's a capacitor that perished. If you're comfortable, open the back and safely discharge every single capacitor, then test each with a multimeter.