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laptop screen turned black but laptop still running

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#31

Oct 11th, 2009

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Originally Posted by TBigRagu

Hi Gang, I've been pulling my hair out on this one. Gateway Laptop M6316 with a 15.4" monitor, running XP media center. The back light is out. I tied two inverter boards and even replaced the bulb and still nothing. I checked the wires all looks good. I am at a loss.

Does it work on an external monitor? Can you see a faint image when you look at the screen in an angle? How did it die anyway?

Cheers
LaptopNomad
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Extreme Laptop Travel in the Middle-East and Asia

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#32

Oct 12th, 2009

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Originally Posted by LaptopNomad

Does it work on an external monitor? Can you see a faint image when you look at the screen in an angle? How did it die anyway?

Yes the video card is fine and I can see a faint image. As I said before i replaced the inverter board and the bulb and still nothing.

Last edited by TBigRagu; Oct 12th, 2009 at 12:03 am.

Ron "The Big Ragu"
"We can't learn from something working"

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#33

Oct 12th, 2009

I'd say the replacement inverter is dead or the video chip driving the inverter has been struck also. Repacement CCFL's don't die that easily unless broken. CCFL wiring is pretty simple, small soldering job. Measured the CCFL leads for bad contacts?

Case you have an high voltage meter (0-5000 Volts), try to measure the inverter output. Be careful though.

Cheers
LaptopNomad
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Extreme Laptop Travel in the Middle-East and Asia

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#34

Oct 12th, 2009

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Originally Posted by LaptopNomad

I'd say the replacement inverter is dead or the video chip driving the inverter has been struck also. Repacement CCFL's don't die that easily unless broken. CCFL wiring is pretty simple, small soldering job. Measured the CCFL leads for bad contacts?

Case you have an high voltage meter (0-5000 Volts), try to measure the inverter output. Be careful though.

That's what I thought so I ordered a second inverter board from a different company and still nothing. I spoke to the customer about how this happened and she informed me (described to me) that she saw a large spark in the wall outlet. I figured an ark hit it.

Thanks

Ron "The Big Ragu"
"We can't learn from something working"

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#35

30 Days Ago

Did you ever figure out what was wrong with your laptop?? Im having the same problem all i can see is the mouse and my screen saver !!

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#36

24 Days Ago

I have a Toshiba Satellite A215. Yesterday the screen went black during shutdown and computer did not switch off. I switched it off manually by holding the power button down. The monitor would not switch on after that and the computer would not enter the boot sequence. After reading this thread I tried removing the battery and holding the power button down for 60 seconds. This seems to have fixed the problem and the computer switches off and on just fine.

Thanks for the great suggestion and post!

Is this a sign of things to come? This has me a little worried about the remaining life of my machine. It is about 3 years old.

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hp problem

#37

11 Hours Ago

hi my problem is that it switches on and off with the screen remaining black. the i pressed ctrl alt del and the it remains switched on but the screen is still black. i tried that 60 sec fix but it still is black screen.

any ideas?