17. (Continued)
b. From the list of troubleshooting rules in column B, select the rule
that applies to the type of signal flow path listed in column A.
Place the number of each selection in blanks in column A.
A
B
linear
1. Check any output for a normal
indication.
switching
2. Check at or just before the midpoint of
convergent
the brackets.
feedback
3. Check all front panel indications.
divergent
4. Check the output as you modify (change)
one of the inputs.
5. Check to see which circuits are
affected.
6. Check each or every input.
Answers for frame 17: a. 1. switching
2. divergent
3. linear
4. convergent
5. feedback
b. 2,5,6,4, 1
18. Knowing where to check is the first important step in troubleshooting;
knowing what to check is the next consideration. Different types of checks
have a different "usefulness," depending upon when each is used. The most
general checks should be used first, and the most specific checks should be
used last. This principle can be thought of as an "information funnel."
The check which yields the most information is performed first; the one that
is the most specific is performed last. In electronic troubleshooting, the
order of checks according to their usefulness is: front panel, operational
adjustments, waveforms, voltages, resistances, and part replacement. Notice
that these go from general to specific.
Answers for frame 18:
1. Front panel.
2. Operational adjustments.
3. Wave Forms.
4. Voltages.
5. Resistances.
6. Part replacement.
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