A logic probe is placed on the output of a gate and the display indicator is dim. A pulser is used on each of the input terminals, but the output indication does not change. What is wrong?

Question

Admin · Accepted Answer

the output of the gate appears to be open.

Admin · Answer

the dim indication on the logic probe indicates that the supply voltage is probably low.

Admin · Answer

the dim indication is a result of a bad ground connection on the logic probe.

Admin · Answer

the gate may be a tristate device.

Q. A logic probe is placed on the output of a gate and the display indicator is dim. A pulser is used on each of the input terminals, but the output indication does not change. What is wrong?

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