Determine the most likely failure in the circuit board of Figure 16–92 for each of the following symptoms. State the corrective action you would take in each case. The transformer has a turns ratio of 1. 

(a) No voltage across the primary 

(b) No voltage at point 2 with respect to ground; 120 V across the primary 

(c) No voltage at point 3 with respect to ground; 120 V across the primary 

(d) A pulsating full-wave rectified voltage with a peak of 170 V at point 4 with respect to ground 

(e) Excessive 120 Hz ripple voltage at point 5 with respect to ground 

(f) Ripple voltage has a frequency of 60 Hz at point 4 with respect to ground 

(g) No voltage at point 6 with respect to ground.

Transcribed Image Text:

120 V 60 Hz H FIGURE 16-92 T 3 D D3 DA O (4) 5 C IC1 C