Capacitors are electrical components that store and control the flow of charge as necessary. So, it comprises a significant part of the PCB. A reliable PCBA service provider like EASHUB will try to maximize the durability of the product, but in the face of complex environments and product aging over time, you may occur capacitors generally malfunction or spill their electrolytes during the process，So it needs replace it with a new capacitor.
It requires a comprehensive understanding of the steps to remove the soldering of the capacitors from the board without defecting other components. Therefore, it can only be done by following a proper procedure and using suitable tools. Following are the few steps to remove a capacitor from the circuit board.
Table of Contents
Locate the damage or error in the capacitor
Before removing a capacitor, it is significant to locate the position and nature of the damage in the capacitor. It will also help in deciding if you should remove it or not. Following are some of the factors concerning the capacitor’s damage:
- The PCB functionality gets defective, or the uneven lines exhibit on the device’s screen.
- Generally, the screen starts wavering, or it appears like something unknown is flickering like a flame on the screen.
- The device automatically shuts down or turns on with some time interval.
- Capacitor becomes corrosive.
- In extreme cases, you won’t be able to turn on your device if the capacitor gets damaged.
If your PCB undergoes any of these factors, it requires removing the defected capacitor at the earliest that you can by proceeding forward.
Grab the required tools for removing the capacitor
Selection of suitable tools integrally aids in getting efficient results. You have to grab some tools before removing the capacitor from the PCB. Pick a wrench or screwdriver that you will need to open the casing. Grab the iron and mask for soldering or the new capacitor if you want to replace it immediately.
Unplug the PCB and remove the circuit board
Unplug your device and plug in the soldering iron to heat it for nearly 15 minutes. Disconnecting the capacitor is vital, especially when the voltages or temperature is high. Now, you can remove the capacitor from the PCB by opening the screws with the screwdrivers, or if there is a lock, you can flip and slide it. Cut the wires as much as you can to clear the area if the circuit board is not coming out before pressing.
Remove the capacitor solder from the board
You will need to apply the soldering braid on the capacitor’s surface where the base of the solder lies. Press the heated iron on the braid hard enough to let the soldering melt and draw into the braid. Repeat this process until you remove the capacitor’s soldering on the circuit board entirely.
Discard it by ensuring its features for a suitable replacement
Discard the old capacitor from the board. However, it is significant to see the specifications of the old capacitor to replace it with the suitable one. Look for the set voltage, the capacitor’s capacitance, and the device’s temperature before separating the capacitor from the board. However, this procedure requires patience to provide qualitative results.
Conclusion:
PCB is incomplete without the capacitors as they are in charge of controlling and flowing electrical current. However, in case of malfunctioning, you should remove it soon to avoid excessive damage to the PCB. Following a defined procedure is crucial to get them clean and assembled PCB. This article provides an extensive guide to efficiently locating and removing the damaged capacitor soldered in the PCB. Try to follow these steps enthusiastically for optimum results.
