Lenovo SL510 Display issue

Clients Laptop has dark display. You can barely see image. Obviously we tried to adjust with
fn and F7

External works fine
interc3905Asked:
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SupportSpecMSCommented:
The most common cause of that happening is the inverter failing. This is typically a separate board situated near the back of the motherboard. It supplies power to the display's backlight.
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Scott CSenior EngineerCommented:
Is this an LCD or LED display?

If it is an LED then there is no inverter as there is no backlight.  If it is an LCD it might be the inverter but I've seen it more often where it is the backlight itself that has gone bad.

You can try replacing the inverter, but in all likelyhood you will need to replace the screen.

You then need to weigh the options if spending the time and money for a new screen is worth it.

In the meantime you can hook an external monitor up and at least be able to use the laptop.

You will have to use some combination of FN keys to cycle through the dispalys until the image shows up on the external monitor.
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Scott CSenior EngineerCommented:
Also, is the laptop under warranty?  If so have it repaired under the warranty.
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Michael MachieIT SupervisorCommented:
Does it brighten up when you plug it into the power adapter?

If so, then you may be looking at the ambient sensor going bad or perhaps the brightness settings are set for 'auto' - i have seen the 'Auto' setting do this. Take it off 'auto brightness' and crank the brightness up to see if you can adjust it. If you can indeed adjust it then the inverter or backlight is not the culprit. It could just be a power save setting.
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nobusCommented:
it is a LED display :  http://www.cnet.com/laptops/lenovo-thinkpad-sl510/4507-3121_7-33776133.html

but they do have a backlight, but it does not use an high voltage, so - no inverter
in some cases, there is a fuse on the mobo, check that first :  http://nwapchelp.hubpages.com/hub/Lenovo-Dim-LED-Backlight
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interc3905Author Commented:
we were able to correct the problem... did not specifically identify the problem
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nobusCommented:
>>  we were able to correct the problem  <<   how?   plse explain
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interc3905Author Commented:
Client got new laptop and we junked the old one.
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interc3905Author Commented:
Expert feedback was good, but client decided to get new laptop.
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