☑ How To Check Resistor On Circuit Board

Using analog meter to check resistor on board often produced a wrong reading. You can check the resistor resistance with an ohmmeter or digital multimeter.

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Touch one multimeter probe to each lead of the resistor.

How to check resistor on circuit board. Before you can test a resistor you need to know its strength and tolerance. If you look at a resistor one end should have a gold silver or white band. Turn the resistor so that this band is to your right.

If you can identify the circuit the resistor is part of. Prepare a digital multimeter dmm to measure the resistor. The standard answer is that you unsolder one end of the resistor being tested and then you can use a multimeter on the ohms range or an ohmmeter to measure the resistance without other elements of the circuit affecting the results.

This is due to the reason that the output from the analog meter is from 3 volt to 12 volt. Surface mount devices such as the smt resistors shown in the photograph look a bit different from the components you would use to build a circuit in your garage because they dont require long leads to connect them within a circuit. Discharge any capacitors in the circuit by touching the leads of a spare high wattage resistor to the leads of the capacitors.

There have to be a simple way to check resistor on board. The voltages are quite high and it can trigger. Isolate the resistor from the circuit.

Normally if a resistor fail they will either increase in value or open up at all open circuit. Determine the actual. Read the resistor value visually.

There are two ways to testing resistor such as using the analog and digital multimeter. How to test resistors steps remove power from the circuit containing the resistor. One such technique surface mount technology smt allows components to be mounted directly to the surface of a board think of them as hitting the deck.

Testing resistor using the accurate way. Keep the leads jumped for several seconds to fully discharge any stored power.