General information on capacitor replacement

General procedure for replacing the capacitor

First of all, it is advisable to take a lot of photos. From the wiring, from the circuit board, from the capacitors.

Electrolytic capacitors must be installed with the correct polarity, so the negative pole is usually marked with a side stripe on the housing.

It's good to be able to see which way the capacitor was installed when you hold the old one between your fingertips and don't remember which way it was (you can't trust prints on circuit boards if they exist).

I recommend desoldering with the help of desoldering wire and a desoldering suction pump. An electronic desoldering station with a heated suction gun would be best, but I don't think it's worth buying for smaller projects.

Get an idea of ​​the situation first. Consider that in the vast majority of cases, electrolytic capacitors were supplied with a higher voltage capability.
The value of the maximum allowable voltage (V) may be the same as that of the old capacitor, but it is very welcome to be higher and has never to be lower .
For details, please refer to the "Commonalities" section.