lcd display sometimes black and sometimes ok

I have laptop which from time to time, when i turn on have a black screen. It look like a LCD backlight dosn't work properly. Any sugestions what is wrong.

thanks for any help Robert

Answered! View the answer I have this problem too

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chmielu chmielewski, this could be caused by a bad LCD panel, which houses the backlight itself, or a bad inverter. I would start with the inverter. It is less expensive and a bit easier to work on. Cost for the inverter is around $15US. Hope this helps, good luck.

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I'm thinking about problem with inverter, tell me can i use invertor from another laptop with the same size of lcd

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Thank you for accepting my answer. The part number is AS023170775 and it should be compatible with Acer Aspire 3680 5050 5570 5580 5585WXMi

Acer Travelmate 2480 series

Acer Travelmate 8100 Series LCD (8103WLMi, 8104WLMi) Model ZF1

Acer Travelmate 8200 Series LCD (8202WLMi, 8204WLMi) Model ZC1

Ferrari 4000 Series (4002WLMi, 4005WLMi) Model ZF3

Ferrari 5000 Series (5005WLMi)Model ZC5

Acer Aspire 4520 4520G 4720 4720G

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chmielu chmielewski will be eternally grateful.
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