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No power no indication it’s charging

I can see there is 20v going into the device. There is no power indicator light.I don’t know how/ what to check on the motherboard I have the facilities to swap any part out just don’t know how to identify the faulty part

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If you're not getting any power indicator light and you've confirmed that there is 20V going into the device, it's possible that there may be an issue with the power circuitry on the motherboard of your Lenovo IdeaPad Yoga 530-14ARR. Here are some steps you can take to troubleshoot and identify the faulty part:

  1. Check the power adapter: Make sure that the power adapter is functioning properly and providing the correct voltage and amperage to the device. You can use a multimeter to measure the voltage and amperage output of the power adapter.
  2. Check the charging port: Check the charging port of the device to make sure that it's not loose or damaged. A loose or damaged charging port can prevent the device from charging properly.
  3. Check the battery: If the device is not turning on at all, it's possible that the battery may be faulty or depleted. Try removing the battery from the device and connecting the power adapter directly to the device to see if it turns on.
  4. Check the motherboard: If none of the above steps work, it's possible that there may be an issue with the power circuitry on the motherboard. You can try visually inspecting the motherboard for any signs of damage or burn marks, but this can be difficult to identify. Alternatively, you can try swapping out the motherboard with a known working one to see if that resolves the issue.

It's important to note that replacing parts on a motherboard can be complex and should only be done by someone with experience in electronics repair. If you're not comfortable working on electronics, it's best to take the device to a professional technician or an authorized repair center.

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