The circuit in Figure 9-8 is defective; data is not appearing on the output lines. A check with the scope shows data pulses on the serial data line and multiplex control lines, S0–S2; no parity error is indicated. A further check with a logic probe indicates that Vcc and ground appear to be present. What might be wrong with the circuit?-A-The demultiplexer may be bad.B-The parity checker is defective.C-The parity generator may be bad.D-The parity checker is defective, or the parity generator may be bad.-A-The demultiplexer may be bad.

Question

The circuit in Figure 9-8 is defective; data is not appearing on the output lines. A check with the scope shows data pulses on the serial data line and multiplex control lines, S0&ndash;S2; no parity error is indicated. A further check with a logic probe indicates that Vcc and ground appear to be present. What might be wrong with the circuit?-A-The demultiplexer may be bad.B-The parity checker is defective.C-The parity generator may be bad.D-The parity checker is defective, or the parity generator may be bad.-A-The demultiplexer may be bad.

APTITUDE CRACK · Accepted Answer

The correct option is  A The demultiplexer may be bad. No answer description is available.

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