I checked voltage on line and load side of a/c adaptor, both within specs of 120v line and 19v load. Followed the video recommendation to remove battery and press power button for 10 sec. +\-, did not help, then removed battery completely and just plugged in power cord, no go. I do not believe it is the a/c adaptor. Could it be internal to the machine, somehow? Thanks for any suggestions that will help resolve my issue.
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