use wax with the solder n dont even use a soldering wire of large diameter.
The solder wont stick.
It is not all green colour, it depends on which kind of solder mask you need. PCB also has red, blue,white...
It's a toy that you can make at some schools. You get a PCB board and get three resistors and solder them to these holes in the PCB board and that how the electricity flows around the hole game.
There are resistors on the back of the PCB that come loose. New resistors and some solder should fix the problem. what is the PCB and its location.
with a bread board you do not need to solder the components. you can just place them in the holes and remove them as you please.
To re-flow a BGA (Ball Grid Array) chip, first, remove the existing solder using a soldering iron or a hot air rework station. Then, apply solder paste to the pads on the PCB and position the BGA chip correctly. Use a reflow oven or a hot air tool to heat the assembly, allowing the solder to melt and form connections between the BGA balls and the PCB pads. Finally, let it cool down to solidify the solder joints.
Electroless Nickel Immersion Gold, a process used in printed circuit board manufacturing to give the PCB a cleaner solder contact.
i have the same problem, i open it, i find there are disconnected cable from the speaker to pcb, i solder it, problem solved
Usually PCB factories do not provide assembly work, some companies have partners will provide assembly work.
A properly soldered connection should have a smooth, shiny surface with a uniform, concave shape, indicating good wetting of the solder to both the component lead and the PCB pad. There should be no cracks, gaps, or excessive solder, and the joint should appear solid and well-formed. Additionally, the solder should not have a dull or grainy appearance, which can suggest overheating or insufficient soldering technique. Overall, the joint should look neat and professional.
During wave soldering, components are held in place by surface tension of the solder. As the printed circuit board moves over the wave of molten solder, the surface tension of the solder keeps the components in position until the solder solidifies, preventing them from falling off. Additionally, the design of the PCB and components ensures proper alignment and stability during the wave soldering process.
A scalar PCB refers to a Printed Circuit Board (PCB) that is designed to work with scalar sensors. Scalar sensors measure a single quantity, such as temperature or pressure, without regard to its direction. The scalar PCB would be optimized to interface with and process data from such sensors.