A technician wires the outputs from a BCD counter to the inputs of the decoder/driver of Figure

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A technician wires the outputs from a BCD counter to the inputs of the decoder/driver of Figure 9-8. He applies pulses to the counter at a very slow rate and observes the LED display, which is shown below, as the counter counts up from 0000 to 1001. Examine this observed sequence carefully and try to predict the most probable fault.

COUNT 0 Observed display Expected display 1 2 7 E73 3 A 4 LOG 5 5 6 7 6 7 6 7 7 8 8 8 8 9 2 9

Figure 9-8

D C BCD input B Blanking controls LED test input BCD- to- 7-segment decoder/ driver BI/RBO RBI LT 7446 or

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Digital Systems Principles And Application

ISBN: 9780134220130

12th Edition

Authors: Ronald Tocci, Neal Widmer, Gregory Moss

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Question Posted: Nov 16, 2023 09:26 AM

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A technician wires the outputs from a BCD counter to the inputs of the decoder/driver of Figure

Question:

COUNT 0 Observed display Expected display 1 2 7 E73 3 A 4 LOG 5 5 6 7 6 7 6 7 7 8 8 8 8 9 2 9

Step by Step Answer:

Comparing the observed display with the expected display for each count we see s...View the full answer

Digital Systems Principles And Application

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