Hot-airing a new part in its place is a snap with this rework station. This can happen before or during reflow, resulting in a spot where something should be, but isn't. Missing Components - The smaller the component, the easier it is for it to disappear. Hot-air is great for replacing these bad parts. These ICs are then placed on perfectly good PCBs. Removing Defective Parts - Sometimes, during the IC manufacturing process, errors can arise and go unnoticed. The part usually sticks strait up resembling a tombstone.Ĭold Joints - This is similar to a tombstone except the parts might not be sticking strait up, making it harder to see the connection that is not being made. Tombstone Parts - This is when a part (usually a resistor or capacitor) reflows only on one side. These include ICs, diodes, some capacitors, connectors, etc. Polarized Components - Parts that have been placed incorrectly (backwards, shifted x degrees off). Just think of it as doing any work to the board that wasn't involved in the actual production process. The term rework just means you are refinishing or repairing an already reflowed board, and it is a term commonly used in the electronics world. As mentioned above, they are a crucial tool when it comes to reworking a board. Hot-air rework stations can be very handy.

The bigger nozzle is great if you are trying to focus hot air around a big area on the board. The smaller nozzle is good for focusing the hot air on smaller components. Nozzles - The 303D comes with 2x changeable hot-air nozzles. The indicator in the temperature box will twinkle when the desired temperature is reached. The LED output will display the setting temperature for 3 seconds and then return to the actual air temperature of the nozzle. You can adjust the working temperature by turning the temperature setting knob. Temperature Range - Output temperatures range from 100° ~ 480° Celsius. The LED output will display the setting air flow grade for 2 seconds and then return to the current air temperature of the nozzle. You can adjust the air flow by turning the air setting knob. By default, the display will show your current temperature in degrees Celsius.Īir Flow Grade - Air flow grades range from A25 ~ A99. Note: Temperature scale (Celsius vs Fahrenheit) is set during the manufacturing stage.

Reflow solder paste