Answers for frame 14: switching, feedback, output
15. Label the types of signal flow paths shown below and briefly state the
general rule to follow when troubleshooting each of them.
Answers for frame 15: a. divergent check any output for normal
indications.
b. switching check to see which circuits are
affected.
c. feedback check the output as you modify the
feedback.
16. Most signal flow systems, whether they are communications systems,
navigation systems, firecontrol systems, or radar systems, consist of
various combinations of these five basic signal flow paths. When
troubleshooting a system, it is often necessary to combine the general
rules, depending upon the portion of the system which is being checked. An
entire system can be thought of as a large linear signal flow path. The
initial brackets are established (mentally or physically) on a block diagram
of the system, and then the first check is made at or near the
IT0338
116
Previous Page
