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Acer Aspire from the 5552 series.

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Power On No display

Its Power on but gives display sometimes and sometimes not give display

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maybe a loose cable

完成的

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Hi,

Connect an external monitor and check if it shows a display OK.

Also when the laptop screen shows no display, use a torch and shine it at an angle close to the screen and check if you can detect a display at all. It will be very faint so perhaps it will be easier if you try this in a darkened room

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try to open it up and disconnect the screen then clean the screen connectors with alcohol assembleitup and retry

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