@BHK6,
Is it is NOT the Num and/or Caps Lock key(s) that flash.
It is just the top display row next to the power button where Quickplay, DVD, rewind, play/pause, forward, stop and volume buttoms are, right at the top, above the Function & number keys, no Caps light either.
These display buttoms light up for 26 sec and go off for 1 sec only to comeback to do the same over and over again nonstop. As they light up I can hear the machine attempting to boot for a couple of seconds then stops and lights go off.
Does it have to do with the Power Supply Unit?
Thanks for your advice
Thank you,
BHK6