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A look at an early 1990s laptop. Unfortunately it no longer works, and during the course of this video I found out why.
(Some time after this was recorded, I examined the DC-DC converter board in closer detail. I found a diode that tested open. I'm almost tempted to get a replacement and see if the computer would come back to life, especially in light of my getting most of the corrosion cleaned off of the other boards. Honestly, though, I'm not too optimistic. Almost every part on the DC-DC converter board is house numbered and many look like custom parts. Only rarely is one lucky enough that the cheap and commonly available parts are all that fails when a circuit is subjected to abuse or serious fault conditions. Instead, the hard to find and expensive devices save the fuses and cheap parts. There is a fuse on the board, and it is not blown.)
I do apologize for the wind noise in parts of this video. And yes, I referred to the computer incorrectly as an "LTE Elite" at one point.