The larger of Apple's MacBook Air laptops featuring dual microphones and 802.11ac Wi-Fi connectivity.

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DC IN Voltage Fails TechToolPro Diagnostic

I have a MB Air that sometimes doesn't startup at all. So I ran the TechTool Pro 8 diagnostic on it and it has a sensor failure: DC In failed at 16.96v. Does anyone know if there is a way I can fix this other than a new motherboard?

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The Mag-Safe is built into the I/O board. There does not seem to be a repair guide for this machine but there is one for the A1466 2012. Take a look: MacBook Air 13" Mid 2012 I/O Board Replacement

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randy4 will be eternally grateful.
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