Test Circuit Board With Multimeter

Resistors manage the flow of current through the circuit board.

Test circuit board with multimeter.

Testing with an analog multimeter 1 change the multimeter to test an ac or dc current. There are different methods of doing this but the most common one is based on using a ferric chloride solution. Disconnect the power supply from the circuit board. In this video we are doing that how to check test circuit board pcb electronics component using multimeter very easy simple diode capacitor transistor resi.

Follow the signal path on the board so that you can locate the first resistor in the chain. Multimeters are ideal items of test equipment for finding many faults in a transistor or other form of electronic circuit. However to use a multimeter to test a circuit and find faults it is necessary to have a little knowledge about the circuit and also to adopt a logical approach in tracking down any faults that may exist. A pcb is made by etching the copper layer on the board as the layout of the circuit diagram.

If the components look fine you ll need to power up the circuit board. The multimeter acts as if it was a cable in your circuit. Measure the voltage of the power rails with the multimeter. The red probe goes to the test point and the black probe goes to ground or common.

Keep your hands on the plastic potion of the probes so you don t get shocked. The printed circuit board pcb is an electronic component base where various components placed and solder. So you need to attach your multimeter in series with your circuit. To put the multimeter in collection you need to put the red probe on the lead of a component and the black probe on the next component lead.

If you separate the multimeter your circuit won t work. Turn the dial to the proper setting. Touch the multimeter probes to the circuit board test points if you re measuring voltage. They attenuate the voltage so that it is proportionate to the current.

Check the fuse if the input voltage measured at the voltage regulator is 0v.