Введение
Capacitors are electronic components found in almost every device containing a circuit board. Large capacitors can store enough charge to cause injuries, so they must be discharged properly.
While iFixit currently doesn't sell a capacitor discharge tool, you can easily create your own.
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Capacitors come in various shapes and sizes, but the large cylindrical capacitors typically are the ones that store enough energy to be potentially dangerous.
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Aluminum electrolytic capacitors, the most commonly used for high voltage, usually look like little tin cans, with both leads extending from the bottom.
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Identify all the capacitors in your device.
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Locate where the capacitor's cathode will be by finding the side of the capacitor marked with a "-" (minus) symbol. This side will correspond to the negative lead, or cathode.
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Touch the black, or negative, tip of the discharge pen to the capacitor's cathode.
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Touch the red, or positive, tip of the discharge pen to the other lead, the capacitor's anode.
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Watch the LED indicator on your discharge tool. If there is still a charge in the capacitor, the LED should glow red until the capacitor is fully discharged.
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Once the light is no longer on, your capacitor is fully discharged and safe to handle.
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Your capacitor is now safe to be handled, shock free!
Your capacitor is now safe to be handled, shock free!
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