Question about Acer Aspire 5610-4648 Notebook

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Backlight or inverter

Hi, my Dell 6400 laptop has a screen which is dark but images can be seen dimly.occaiionally the screen will boot up and work normally,but this is intermittent and irregularly.
Do you think the problem is with the screen or the inverter?

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  • cowboy12 Jan 13, 2008

    wow...very impressed with your speedy response. just one question.if the backlight was at fault would it still work ok once it manages to switch itself on,today its been on for the last 4hours...no flickering or "black" screen at all.
    thanks again

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That would be the backlight. If it were an inverter issue then you wouldn't have any video at all.

http://www.fonerbooks.com/laptop_5.htm

Posted on Jan 13, 2008

  • Peter Burns Jan 13, 2008

    It sounds like it's in the process of going bad. Think of it like a fluorescent light flickering. It will eventually get dimmer and dimmer until it goes out completely.

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Have you tested it with an external monitor?

I would say you either have a damaged inverter board or screen baclight lamp. Usually the inverter board fails in one of the following ways:

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2. Your laptop turns on but the screen remains dark all the time. You still can see a very dim image outline. The laptop works fine with an external monitor.
3. The laptop screen works fine for hours or even days, but sometimes it goes very dark as it mentioned above. When you restart the laptop, the screen works fine again.

Inverter failure symptoms are very similar to backlight lamp failure symptoms and in most cases you cannot tell which one is causing the problem until you replace either the inverter board or the backlight lamp. From my personal experience, inverter boards fail more often than backlight lamps. If you have to guess, replace the inverter first.

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c104971.jpg

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This could be a faulty video cable or connector or CCFL lamp or inverter.
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1 Answer

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I would suggest connecting the laptop to an external monitor, just to make sure that it is all running correctly.

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