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Entombing that mess with a squirt of hot melt glue
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Mary says: I couldn’t make this one up; that is exactly what happened. Ed says: It’s Christmas: we can take the day off from tech, right?
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I unsoldered it and there’s no continuity: it failed open.
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You could, of course, buy a whole new shelf assembly, but it’s no longer available.
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You set the config code in Special Mode just like you set the LED driver bits in Normal Mode: shift ’em all in, then blip LE to latch ’em into the parallel holding register.
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The problem is that the current-versus-config-value curve has a non-monotonic discontinuity in the middle.
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The transparent top coating isn’t armor plating
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Finally, the Reset and TX pin pads simply tore loose from the circuit board.
The Smell of Molten Projects in the Morning 