Digital Electronics - MSI Logic Circuits - Discussion


A breadboard-circuit design using a BCD-to-decimal decoder has a problem wherein the operation of the system is erratic. The technician uses his scope to examine the waveforms throughout the system and doesn't really see any problems. While he's scratching his head, what helpful advice can you offer him as to what might be wrong and what to do to correct the problem?

[A]. The decoder is thermally intermittent; replace it.
[B]. There is probably a bad connection on the wire wrap protoboard; recheck the wiring.
[C]. Glitches are probably the culprit; strobe the decoder.
[D]. The decoder is thermally intermittent and must be replaced; or there is probably a bad connection on the wire wrap protoboard, and the wiring must be rechecked.

Answer: Option C


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