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Old 03-19-2010, 01:08 PM   #1
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Default Replacing a backlight in a laptop

Not the screen, the backlight. It costs 20x more to replace the entire screen vs the backlight.

I can still see everything on the screen, but there is no light! If i look really closely at my screen, I can see that everything is still functional.

Thus, I figure it is my backlight. I know that switching it out is a very delicate process.

Any tips
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Old 03-19-2010, 01:35 PM   #2
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Default Re: Replacing a backlight in a laptop

It may not be the backlight, but rather the inverter board that drives the backlight. Those are much easier to replace and probably cheaper, too.
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Old 03-19-2010, 01:45 PM   #3
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Default Re: Replacing a backlight in a laptop

I second that, it's the inverter. Much easier done. I've replaced some myself.
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Old 03-19-2010, 04:35 PM   #4
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Default Re: Replacing a backlight in a laptop

Check the inverter with a multimeter before you just replace it. I have seen the backlight itself go out before.
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Old 03-20-2010, 06:10 AM   #5
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Default Re: Replacing a backlight in a laptop

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Originally Posted by foothead View Post
Check the inverter with a multimeter before you just replace it. I have seen the backlight itself go out before.
Last I checked, they are high voltage so be careful when doing so.
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Old 03-20-2010, 02:34 PM   #6
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Default Re: Replacing a backlight in a laptop

yall should tell him where the inverter is....
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Old 03-20-2010, 02:51 PM   #7
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Default Re: Replacing a backlight in a laptop

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Originally Posted by Legodude522 View Post
Last I checked, they are high voltage so be careful when doing so.
This is why you are testing continuity, not voltage. You do this with everything powered off.

Sniperviper, its usually in the LCD lid, but I have seen it above the keyboard before, in the main part of the laptop. It's a little circuit with wires going into it and coming out.
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Old 03-20-2010, 03:36 PM   #8
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Default Re: Replacing a backlight in a laptop

ya, but i mean, yall should havet told him where it could be instead of just saying to change the inverter
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Old 03-20-2010, 09:23 PM   #9
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Default Re: Replacing a backlight in a laptop

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This is why you are testing continuity, not voltage. You do this with everything powered off.
I didn't get the memo.

I've got the blisters on my fingers to prove it.
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Old 03-21-2010, 12:11 AM   #10
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Default Re: Replacing a backlight in a laptop

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I didn't get the memo.

I've got the blisters on my fingers to prove it.
?! You don't know how to test continuity?
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