Page 72 - Testing Electronic Components
P. 72
Testing LED
Remember that the LED only emits light when it is forward bias and the
LED does not emit light when it is revered-biased. If LED does not emit
light when it is forward bias then it has developed an open circuit and
should be replaced. Power must be off when check the LED.
- x 1 ohms + - x 1 ohms +
a. LED emits light when it is forward bias. b. LED does not emit light when it is reversed bias.
Testing LED with analogue meter
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