Before soldering and blanching, make sure that the wires and the circuit-boards are disconnected from the power supply (de-energized)!
Blanching a contact pad means doing the following:
- Apply flux on the contact pad
- Cover the contact pad with solder
Blanching a wire means doing the following:
- Strip the wire to remove the insulation layer
- Twist stripped wires
- Apply flux to the twisted stripped wires
- Apply a layer of solder.