Page 37 - Testing Electronic Components
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Testing Resistor
There are two ways of testing resistor; using an analogue or digital
multimeter. Normally if a resistor fails they will either increase in
value or open up at all (open circuit). You can check the resistor
resistance by selecting the ohmmeter range in the analogue and digital
multimeter. If the resistor is in circuit, you will generally have to remove
the resistor so you are testing only the resistor value and not the other
components in the circuit. Always be aware of possible back (parallel
circuit) circuits when checking in-circuit resistance measurements.
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