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screen gone blank after reassemble

so yesterday i reassemble my laptop to clean my fan...and i reassemble it again but when i'm turn it on the screen won't show (blank) but i can hear the fan is running...i thought that maybe i forget to connect or put something...please help me fix and sorry for bad english

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Hi,

Try connecting an external monitor and see what it shows.

If it shows a display, hold a torch at an angle close to the screen of the laptop and see if you can detect the Windows desktop. If you can you have a backlighting problem. If nothing shows you have either a faulty video cable, faulty video cable connections at either end or a faulty screen.

If there is no display on the external monitor you have a GPU or motherboard problem

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Hi Jose,

It looks like we don't have your exact laptop on our website yet, but we do have lots of other Toshiba Satellites that could have some useful information, located here:

Toshiba Satellite Repair

For example, perhaps this Toshiba Satellite L45-S7423 LCD Display Replacement may be a good reference to see if you forgot to reattach any connectors.

I wish I could help more. Good luck!

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Jose Gabrielle Junior 가/이 대단히 고마워 할 것입니다.
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