How can I troubleshoot electronic soldering projects that do not work properly?
Troubleshooting student electronic projects, always fun! The multimeter is the most basic electronic test instrument. Get one and practice using it. As you may already know, the DVM measures voltage, current, resistance, and sometimes other electronic parameters. There is nothing to using one of these devices. Just don’t try to measure resistor values with the voltage applied to the circuit under test. Otherwise, the DVM is pretty much fool-proof for all other measurements. You don’t say if the projects are all the same type using the same diagram and components. If so, that should make things a little easier. First place to start is to find one project that works properly, use it as the model. Take your DVM, digital volt meter,(circuit power turned off) and measure all resistor values for all resistor configurations in the circuit. Do the same for all voltages at key points such as transistor collector/base/emitter leads, diode anode votage, and voltages across key capacitors and resi
