What component should be investigated if a MacBook Air (13-inch, Mid 2012) sends video to an external display but not to the internal?

Posted by: Pdfprep Category: 9L0-012 Tags: , ,

What component should be investigated if a MacBook Air (13-inch, Mid 2012) sends video to an external display but not to the internal?
A . Display Module
B . Logic board
C . I/O flex cable
D . I/O board

Answer: A

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