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DIY Do It Yourself

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DIY Do It Yourself - electronics, repairs, building, devices, workshop, mechanical etc29 Servers

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21 Oct 2021
@jesse.mcgrath:matrix.orgJesseI did a surface mount LED swap a bit ago, but it was in it's own compartment and had another person to help.14:52:18
@jesse.mcgrath:matrix.orgJesseThat's next to a bunch of stuff. With two people you can have one tug and wiggle while the other heats with the smallest iron you have.14:54:04
@jesse.mcgrath:matrix.orgJesseWith the shortest contact time you can do. To replace the resistor, clean the area, prep it with a tiny solder ball, then lay new resistor on and heat it.14:55:38
@jesse.mcgrath:matrix.orgJesseI assume it's non-functional? So as long as you don't burn the other stuff you won't make it worse14:57:05
@absolutebunk:matrix.orgabsolutebunk Jesse: Thanks for the input... all the other circuits appear to function just fine, so I'm confident if I successfully replace this diode, my board is back in business. Perhaps I'll look for the smallest soldering iron tip I can find and give it a shot. Where would I find a component like this for sale? 15:19:37
@jesse.mcgrath:matrix.orgJesseMouser and digikey sell basically any electronics online but for a single diode you'll pay a hundred times the cost to ship it.15:22:13
@jesse.mcgrath:matrix.orgJesseLike all of 7 dollars, but still15:22:33
@jesse.mcgrath:matrix.orgJesseDo you know the specs for the diode too?15:23:00
@absolutebunk:matrix.orgabsolutebunk$7 is worth it... no I don't know the actual specs. It's an USB audio mixer, and I have the basic circuit schematic to go with it. I know the power supply voltage and that's about it. 15:24:29
@jesse.mcgrath:matrix.orgJesse Hrm. I'm guessing the schematic just says "D203"... Are the markings on the diode gone? 15:25:56
@absolutebunk:matrix.orgabsolutebunkI wish it was that detailed. I'm just following symbols on the circuit path (I see a diode on the circuit schematic and it matches with the circuit I've traced on the board, and I'm assuming the "D" in D203 represents diode). 15:27:54
@absolutebunk:matrix.orgabsolutebunkMarkings on the diode...15:28:08
@absolutebunk:matrix.orgabsolutebunkthere's a 1 and an 8 (or B) on the diode that didn't burn out.15:28:34
@jesse.mcgrath:matrix.orgJesseYeah, I don't think every company does the exact same notation, but D is probably for diode, and the PCBs will have every component marked to help assembling it. Sometimes the diagram with those numbers is available. I don't think I've ever seen one so generous as to give the specs of each component.15:31:08
@jesse.mcgrath:matrix.orgJesseI just found this: electroschematics.com/smd-code-book-and-marking-codes15:32:30
@absolutebunk:matrix.orgabsolutebunkI'll review the entire board under a magnifying glass when I get back to it and see if I can learn anymore about that specific component. I'd like to give it a shot. At the very least, I can provide entertaining photos of my sloppy soldering skillz15:32:36
@jesse.mcgrath:matrix.orgJesseIf you can get the marking, that link should give you the exact part number you'll need.15:34:07
@absolutebunk:matrix.orgabsolutebunkboom! thanks brother15:34:17
@absolutebunk:matrix.orgabsolutebunkπŸ™15:34:33
@jesse.mcgrath:matrix.orgJesseUnless D202 is an identical circuit I wouldn't expect it to be the same component15:35:07
@jesse.mcgrath:matrix.orgJesseNp πŸ‘Š15:35:26
@jesse.mcgrath:matrix.orgJesseAlso, you might try searching the product name and failures, or product name D20315:36:02
@jesse.mcgrath:matrix.orgJesseThings break the same way, so if you're lucky there's a forum where someone lists that part number15:36:44
@absolutebunk:matrix.orgabsolutebunkI'm confident that I can determine what the component should be, as it's a 10 channel audio mixer. I can simply look at the other channels to compare. I'll double check though just to be sure.15:41:57
22 Oct 2021
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@antepost:matrix.org.Β‘π– π—‡π—π–Ύπ—‰π—ˆπ—Œπ—Β‘.a diy matrix chess ... 10:41:34
@antepost:matrix.org.Β‘π– π—‡π—π–Ύπ—‰π—ˆπ—Œπ—Β‘.
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10:41:38
@antepost:matrix.org.Β‘π– π—‡π—π–Ύπ—‰π—ˆπ—Œπ—Β‘.may any one can use it 🀯😱10:41:54
@antepost:matrix.org.Β‘π– π—‡π—π–Ύπ—‰π—ˆπ—Œπ—Β‘. * /html
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11:34:17

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