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Notebook computer having an off-motherboard keyboard controller

  • US 8,803,806 B2
  • Filed: 01/23/2007
  • Issued: 08/12/2014
  • Est. Priority Date: 01/23/2007
  • Status: Active Grant
First Claim
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1. A diagnostic system for a portable computer, the diagnostic system comprising:

  • a motherboard having a first I/O controller;

    a palmrest assembly having a second I/O controller;

    a bus connection linking the first I/O controller to the second I/O controller through the motherboard and palmrest assembly;

    a keyboard assembly connected to the palmrest assembly through the connection of a keyboard assembly connector on the keyboard assembly and a palmrest assembly connector on the palmrest assembly, wherein the palmrest assembly connector is operable to receive the keyboard assembly connector while the palmrest assembly is assembled to a housing that houses the motherboard; and

    a first loopback circuit on the palmrest assembly and keyboard assembly, the loopback circuit allowing the second I/O controller to test the continuity of the connection between the keyboard assembly and the palmrest assembly.

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