Replace defective capacitor in a power supply - iFixit Repair Guide

What you need

Step 1 Capacitor in the power supply

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

Step 2

Replace defective capacitor in a power supply: step 2, image 1 of 1

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.

Step 3

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.

Step 4

Now reinsert the circuit board and make all connections again.
Then screw the cover back on.

Conclusion

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

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HRi

Member since: 01/24/22

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