Basic Fault Finding Guide

We suggest that you thoroughly recheck the circuit again using the sequence detailed below.

1. Check that all components are in the correct position and orientation.
2. Check that there are no short circuits (excessively high current drain on the power supply may indicate shorts). Examine the PCB for solder splashes across pads/tracks and stray component leads/wires.
3. Carry out some basic electrical tests to ensure power is reaching all parts of the circuit.
4. Check all components are functioning correctly. Has overheating during soldering damaged any components? IC's and transistors are particularly susceptible.
5. Remove and test suspect components using appropriate test equipment. Alternatively, substitute dubious components with tried and tested ones.
6. Make a thorough check of circuit voltages/currents/signals using appropriate test equipment.
7. Where kits are connected to other equipment check for compatibility problems by testing on alternative equipment.

By adopting a systematic approach to fault finding you will eventually discover where the problem lies. If you wish to learn more about the design and testing of electronic circuits we recommend that you explore the extensive range of books and magazines that are available on the subject.

Please note that we are unable to provide specific help or advice on design modifications or adaptations of project kits for individual customer applications.

We wish you good luck with getting your project up and running soon. If you are still unable to locate the fault after carrying out the above tests we suggest you return the kit to us under our Get-You-Going service detailed below.

Get-You-Going Service