Getting all of the component values and making the schematic 'presentable' is what will take the most time, as you don't know what layout will work best until you have it all on there and everything connected together. Also not my first go at a 4 layer PCB, the one I did before this was out of a DeWalt DCB606 battery pack, which was potted on both sides, so loads more fun to be had there in that case. No SMT components in there and only 2 layer boards, but it had more than a few of them. It came apart one component at a time, the component was tested and then after the PCB scans it all went back together. It didn't work and I wanted to figure it out, so it had to all be done in a nondestructive manner. One that did take a little awhile to do was a Square D 8010 SPR-300 programmer. Also not my first go at figuring out a schematic from a PCB. The PCB has 774 vias, for anyone that was curious.ĭidn't really keep track, but it's just more tedious than time consuming really. Being a 4 layer PCB it's the best way to go about it, unless you have access to a flying probe machine that can do a million continuity checks in a minute, plus want to spend all day programming in all the spots it needs to check. At that point I could have gone component by component to get all of the values recorded, but I just wasn't in the mood and wiped the thing clean to get at the meat of it. The PCB was basically stripped and reversed from a hardware standpoint, so I could make sure I knew where everything was connected. If you find any errors or have any known component values to contribute go for it, but I'm not in any kind of race to make this thing 100% complete, so it'll get updated when it gets updated as I'll have to verify any errors/values anyway before making changes.
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