PCB News - PCB board disassembly method

PCB board disassembly method

When the circuit board is damaged and needs to be repaired, we must disassemble the damaged components, including when we inspect the components, we also need to remove them, so how to disassemble the PCB board What about the components? Today, the editor will share with you the method of disassembling PCB components.

Components soldered on PCB board

When you don't know which component is damaged or which component caused the abnormality, you can solder the components down without affecting the normal operation of the circuit board, and then observe whether the abnormality of the circuit board is eliminated. This method is not suitable for the disassembly of the necessary components, such as circuit protection components. One accidentally may burn the motherboard.
The components welded on the PCB are mainly divided into single-leg, double-leg, three-leg and multi-leg, etc. The disassembly method is also different.

Three-pin desoldering first desolder the next two pins at the same time

Single-leg components are relatively simple to disassemble, and can be disassembled directly by desoldering or heating. In order to facilitate disassembly of the two-pin components, the pins can be removed by shaking the pins before they are unsoldered. The premise of using this method is that the components are confirmed to be unusable.
Use hollow cups to slowly unsolder multi-pin components

Desoldering pin components using copper plate heating at the same time

For components with three pins, you need to desolder the two pins first, and then remove the components by shaking them left and right in the same way as the two pins.
It is troublesome to disassemble the components of this type of pin IC chip. When encountering this type of components, they can be soldered off one by one through a hollow cup, and then removed.

PCB board disassembly method
For components whose pins do not pass through the holes of the PCB board, the tin suction pump can be used directly.

iPCB is a high-tech manufacturing enterprise focusing on the development and production of high-precision PCBs. iPCB is happy to be your business partner. Our business goal is to become the most professional prototyping PCB manufacturer in the world. Mainly focus on microwave high frequency PCB, high frequency mixed pressure, ultra-high multi-layer IC testing, from 1+ to 6+ HDI, Anylayer HDI, IC Substrate, IC test board, rigid flexible PCB, ordinary multi-layer FR4 PCB, etc. Products are widely used in industry 4.0, communications, industrial control, digital, power, computers, automobiles, medical, aerospace, instrumentation, Internet of Things and other fields.