Soldering Techniques

1.     Study the diagram and PCB layout.

2.     Check all the components and study their pins and orientation.

3.   Clean the leads of components if needed to remove rust or grease with a blade.

4.     Place resistors first then IC base, capacitors etc.

5.     Use little flux to the joints to increase the melting point of solder lead.

6.     Place solder Lead to the joint and heat with soldering iron.

7.     The solder joint should be firm, clean and shiny.

8.     Poor and dry solder joints will make loose contacts and the circuit will not work properly.

9.     After soldering, clean the solder side to remove excess solder or flux using Spirit or PCB cleaner.

10.    Cut off the excess leads of components.

11. Careless handling may cause joint loosening and track breaks. So handle PCB carefully.

12.          Check all the points before connecting to power supply.