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@bunniestudios | |||||
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My loss is your gain: had to patch another Fomu. For multiple reasons USB D- wasn't connected (D- pogo pin in wrong location / D- solderball not connected) and so I made another sample to help locate the test jig issue. This time I bypassed an eyepiece to film it - enjoy! 🤪 pic.twitter.com/YODk2qtJQx
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bunnie
@bunniestudios
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28. svi |
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Supercool...@xobs took the reworked board and put it into an X-ray machine! pic.twitter.com/g0HwtL37HP
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Stafford Horne
@stffrdhrn
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29. ožu |
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How many fomu boards are having this issue? Is it a problem with the board layout or something else?
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bunnie
@bunniestudios
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29. ožu |
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My understanding is it is a small design error in the pre-production run. The intent of the rework is to 100% validate all the other aspects of the design before doing a volume rev for mass production.
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Neil
@hyrulian
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29. ožu |
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Is this an example of rather extreme rework or is this pretty typical?
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bunnie
@bunniestudios
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29. ožu |
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Difficult but not extreme. I had a bug on NeTV2-EVT that required cutting multiple layers to eight traces and patching resistors at very specific locations on GHz-speed wires. That was harder. And in college I held a job soldering where we routinely did even more difficult work.
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sanad nesheiwat
@Sawnik150
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29. ožu |
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I miss smd and bga reworking ☹️
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Aurelio Mannara
@AurelioMannara
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29. ožu |
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Imagine the pain if the pad was not on an outer edge
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Brian Arsenault
@N1FIY
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29. ožu |
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Damn, that took a ton of focus, patience, and a touch of crazy thrown in! Awesome video!
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