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MacBook goes to sleep when top cover is connected

hey there,

first, excuse me as english is not my native language.

i think my problem is similar or same as this post

i have a macbook 13" i think 2007 model. it was very dirty and i have opened and remove the top cover in order to clean it. this was not the first time i have done this and i have left the top cover without any screw so i can clean it every once in a while (im am using it in a fixed place and not really moving it). today i have disconnected the top cover when the computer was on (by mistake) and when reconnecting it, it puts the computer in to sleep mode. when click in the trackpad and the space bar, it comes back on (with no backlight) and i can see that it is reacting, but soon it goes back to sleep. when tried to connect external USB keyboard and mouse, it works fine, but as soon as i try to connect the top cover again, it goes dark and back to sleep.

would love any input on this issue.

Thanks

Oded

Answered! View the answer I have this problem too

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The first thing to do is to connect a known working top case to your macbook and check if the unit is working as it should. If not then there's a possibility the logic board was shorted when you connected the top case while the logic board was powered.

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Hey lemerise, thanks for your reply.

i actually do not have a working top case at the moment so i can not preform this test now. i did however connected the top case to an other macbook and it did not couse the same problem. all was working fine except the botten the trackpad.

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Any damage inside the logic board top case connector ? Also, remove the battery charging/sleep board from the logic board and try to power the macbook directly from the main board by bridging the power contact points. It's the battery charging/sleep board that triggers the sleep function so maybe there's a problem with it. Cost nothing to try...

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Look at the inverter connector that runs through the clutch. Sometimes this may get pinched when removing the back cover. This happened to my Powerbook and the cable just had to be moved. Also the inverter cable sounds like it might have gotten caught on something and slightly pulled from its case. If this is so find the two connection points of the inverter cable and make sure they are firmly in place. Hope this helps.

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Oded will be eternally grateful.
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