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My Compaq's screen has gone black

597 Views 2 Replies 2 Participants Last post by bethg65, Aug 14, 2014

bethg65

Discussion Starter · Aug 14, 2014

My Compaq laptop's screen has gone black and at first I thought the back lighting had gone out and I put it in the closet until I could get it repaired. Tonight I got it out and turned it on and it came on for just a minute or two, you could see the desktop and the icons, but the fan was really loud. The fan got quiet (but was still working) and then the screen went black again. This makes me think that it is not the back light that is the problem but maybe something to do with the fan. I went ahead and shut it back off, but I am currently charging it because the battery was completely drained. I am hoping this is a problem that is inexpensive and possibly easy enough for me to fix (with your help of course).

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Tanis

· #2 · Aug 14, 2014

Hi and welcome to TSG.

Before a backlight / inverter totally fails it can run intermittently, so I wouldn't totally discount that option. Infact, based on your description I would consider this the most likely cause of the problem, it is also a common failing component.

When the laptop is on and the screen is blank get a bright torch and shine it at the screen, look closely at it and see if you can still see a feint image of the desktop and other expected information. If you can then the backlight / inverter need replacing.

Personally, I wouldn't expect the screen to go blank due to a fan problem, if it was overheating (likely if the fan was failing) it would likely alarm and shutdown automatically. I assume that the machine appears to be running still when the screen blanks out?

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bethg65

Discussion Starter · #3 · Aug 14, 2014

I have in fact already tested it by putting a flashlight up to it and you can see the icons beyond the darkness (sorry, I forgot to mention that). And yes it is still running and the keys and buttons all light up, it is just the screen that is blacked out...

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