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Laptop lcd backlight not working Answered

I have an hp g70 laptop. one day I got on it and the screen couldn't be seen except if I pointed a flashlight at it. I thought the backlight had failed. I replaced the backlight but the problem still persists. any help would be much appreciated since this is my family laptop and I really don't want to spend $50 on a replacement screen assembly. thanks

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A-R-G
A-R-G

7 years ago

I also think its the power supply to the Backlight, Is your Backlight LED or Fluorescent?

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Josehf Murchison
Josehf Murchison

7 years ago

picks picks picks 90% of the problem can be seen in picks otherwise it could be a burnt out light bulb.

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lathe_makeatio
lathe_makeatio

7 years ago

maybe there is (like on older CFL back light laptop)s a separate driver pcb that supplies the LEDs. This part might be blown. Just follow the cables that the LED is connected to.
Rgds

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steveastrouk
steveastrouk

7 years ago

Probably the powersupply to the backlight then. Open the screen up, and take a look for the backlight driver board. You might be able to replace just that.