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Replace defective capacitor in a power supply

필요한 것

    • ATTENTION: 230V are processed in the monitor. So take the necessary care. And a little experience with electronics and soldering should be available.

  1. Replace defective capacitor in a power supply: 2 단계, 이미지 1개 중 1개
    • The main focus here is on troubleshooting. First disconnect all plugs and then loosen the housing screws.

    • Now check whether an electrolytic capacitor has "blown up". Most electrolytic capacitors have a notched cross at the top and are flat there. If this surface is curved upwards, the electrolytic capacitor is defective.

    • When this top has burst open or liquid has leaked out of the electrolytic capacitor at the bottom, it is defective.

    • The liquid can also cause damage to the circuit board. In this case, the circuit board should be cleaned with isopropanol and any damaged lines must be repaired before installing a new electrolytic capacitor.

    • Now remove the circuit board. To do this, loosen all connections and remove the corresponding screws.

    • Next, the defective electrolytic capacitor must be desoldered (desoldering pump or desoldering wire help).

    • Now replace the defective electrolytic capacitor. The new electrolytic capacitor must have the same capacitance and voltage. The connection wires and height should also be the same.

    • Now reinsert the circuit board and make all connections again.

    • Then screw the cover back on.

결론

Work through the steps in reverse order to reassemble your device.

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