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Model A1297 Unibody: Early 2009, Mid 2009, Mid 2010, Early 2011 & Late 2011

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2010 17" MacBook Pro: certain keys keep repeating

Hi, I have a 2010 17” MacBook Pro (not the dreaded 2011 MacBook Pro…).

Recently, keys in the top-right hand section of the keyboard have started repeating continuously. The worst are the volume up/down function keys, but also others such as the “\” key.

I thought that the keyboard was probably the problem so I transplanted the logic board into a spare identical 17” MacBook Pro case that included its own keyboard, and the problem moved with the logic board. Hence I presume the problem lies with the logic board.

The Mac has been extremely reliable until a couple of years ago when I had the board repaired for a different problem but now I’m reluctant to spend more money on it.

Any ideas as to what could be causing the problem, and how to rectify it? Or is it time to retire the MacBook Pro? Thank you.

Update (11/01/2020)

Thanks Dan. Please see the two images attached - one of the connector with the keyboard ribbon cable connected, and one of the end of the unconnected ribbon cable. But, as described in my original post, this is the second case and keyboard (and hence the second keyboard cable) that I’ve tried and it seems unlikely to me that the same problem would persist between two separate keyboards and keyboard cables, etc. Thanks for your help.

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Let's see if we can get you going again. Take a couple of clear sharp pictures of the logic board where the keyboard cable is connected do one as it is now and take another after disconnecting the cable so we can see the both the connectors solder connections as well as the ribbon cable end. Post both here for us to see Adding images to an existing question

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I was hoping the issue was within the connector interface. Sadly it appears to be deeper within the logic board. So if we look at the schematics we can follow the signals. It starts at the keyboard connector J5713

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Which then connects to U5701

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And then into the PCH chip interface.

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