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(a) Suppose that the BI/RBO input line was connected to ground on the 74LS47 BCD- to-seven segment decoder and all other input lines were connected as shown in Figure 3. Determine the effect this would have on the display. (b) Assume that the switches in Figure 3 are set to binary 1000, but the display shows a zero. What are possible causes for this error? Four DIP switches +5.0 V 1.0 ΚΩ MSB LSB w 330 Ω www 330 Ω 330 ww 330 Ω +5.0 V 7447A +5.0 V R's=330 Voc Anode a w a Lamp test ba ww b BI/RBO CO www RBI Outputs d w e ww e f w ww 8 DUBA BCD inputs GND MAN72 seven-segment display

(a) Suppose that the BI/RBO input line was connected to ground on the 74LS47 BCD- to-seven segment decoder and all other input lines were connected as shown in Figure 3. Determine the effect this would have on the display. (b) Assume that the switches in Figure 3 are set to binary 1000, but the display shows a zero. What are possible causes for this error? Four DIP switches +5.0 V 1.0 ΚΩ MSB LSB w 330 Ω www 330 Ω 330 ww 330 Ω +5.0 V 7447A +5.0 V R's=330 Voc Anode a w a Lamp test ba ww b BI/RBO CO www RBI Outputs d w e ww e f w ww 8 DUBA BCD inputs GND MAN72 seven-segment display

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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(a) Suppose that the BI/RBO input line was connected to ground on the 74LS47 BCD- to-seven segment decoder and all other input lines were connected as shown in Figure 3. Determine the effect this would have on the display. (b) Assume that the switches in Figure 3 are set to binary 1000, but the display shows a zero. What are possible causes for this error? Four DIP switches +5.0 V 1.0 ΚΩ MSB LSB w 330 Ω www 330 Ω 330 ww 330 Ω +5.0 V 7447A +5.0 V R's=330 Voc Anode a w a Lamp test ba ww b BI/RBO CO www RBI Outputs d w e ww e f w ww 8 DUBA BCD inputs GND MAN72 seven-segment display
Transcribed Image Text:(a) Suppose that the BI/RBO input line was connected to ground on the 74LS47 BCD- to-seven segment decoder and all other input lines were connected as shown in Figure 3. Determine the effect this would have on the display. (b) Assume that the switches in Figure 3 are set to binary 1000, but the display shows a zero. What are possible causes for this error? Four DIP switches +5.0 V 1.0 ΚΩ MSB LSB w 330 Ω www 330 Ω 330 ww 330 Ω +5.0 V 7447A +5.0 V R's=330 Voc Anode a w a Lamp test ba ww b BI/RBO CO www RBI Outputs d w e ww e f w ww 8 DUBA BCD inputs GND MAN72 seven-segment display
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