| Electronics > Repair |
| Hakko Investigated By Californa Attorney General Right to Repair Violations |
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| amyk:
Is this the level of detail they're expecting? https://dalincom.ru/datasheet/HAKKO_936_schematic.pdf I think we should turn "right to repair" into "right to reverse-engineer", which means exempting from the DMCA anything necessary. |
| AndyC_772:
--- Quote from: KG7AMV on November 20, 2024, 04:56:42 pm ---Yea, they do it to prevent repair. --- End quote --- They do it to prevent damage from water ingress, shock and vibration, which are part of the normal operating environment for a professional tool. I'm all in favour of stuff being repairable, but not at the expense of things being less reliable in the first place. Potting electronics in a tool like an impact wrench is just good practice, there's nothing sinister or intentionally anti-repair about it. As for the cost of replacement, yes, it's expensive compared to the price of a whole new tool - but given the relative quantities in which new tools are sold vs individual parts, it's probably not a huge mark-up when all overheads are taken into account. |
| voltsandjolts:
--- Quote from: AndyC_772 on November 21, 2024, 07:49:55 am ---Potting electronics in a tool like an impact wrench is just good practice, there's nothing sinister or intentionally anti-repair about it. --- End quote --- There is often the choice available to use a soft silicone (removable) potting compound or hard epoxy type. Yet the latter is far more common ::) |
| 5U4GB:
--- Quote from: KG7AMV on November 20, 2024, 04:56:42 pm ---Yea, they do it to prevent repair. --- End quote --- More likely they do it because an impact driver is a miniature jackhammer and if they didn't pot the electronics they'd last about fifteen minutes into first use. I can't believe I'm actually defending the manufacturers here but not everything they do is malicious. Looking through the Hakko PDF it looks like a standard repair manual for their techs to use, here's how to take it apart, here's how to replace the subassemblies, here's how to put it together again and test it. Full schematics for repair haven't been published for many devices since the days of valve/tube and discrete-transistor devices, once things progressed beyond that point it was just "identify the faulty module and swap it out". And for Hakko specifically, it can't be that hard to reverse-engineer the circuit given the number of fake Hakkos all over Aliexpress, it looks like half of China has the schematics already. |
| Smoky:
About the Dewalt impact driver and the way that they used a hard epoxy potting material. When the driver is used, the vibration is transferred to each individual component on that PCB directly due to the hardness of the epoxy. I would think a silicone based potting material would absorb/deaden the vibration somewhat better before it reached the individual components on the board. I guess the only way to find out as to why they used epoxy is to ask them. |
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