Troubleshooting

9.2 Troubleshooting

9.2.1 What is involved in troubleshooting?

Check the power supply

• Use a multimeter to check the supply of power to the prototype.

Do a visual check

• Look carefully at all components for signs that might indicate the problems.

Do a smell check

• When electronic components overheat , they may give off a distinct burning smell.

Check for signal presence

• Use a multimeter to check that the required signals can pass through the wires between two points. If the wires are frayed or broken inside , the electrical and electronic signals will be irregular or absent.

Check for faulty components and replace them

• Replace any faulty components , but be careful when doing so , especially if desoldering and resoldering are needed.

Check for mechanical seizures

• Mechanical seizures can occur in a prototype with electronic and mechanical components. Components that are not properly aligned or mounted can also block the path of other moving parts.