In Fig. 5-45, the LED does not light. Which of the following are possible troubles?
a. V130LA2 is open.
b. Ground between two left bridge diodes is open.
c. Filter capacitor is open.
d. Filter capacitor is shorted.
e. 1N5314 is open.
f. 1N5314 is shorted.
![665_a8886c0a-7764-4959-b802-ee54ffc703f7.png](https://secure.tutorsglobe.com/CMSImages/665_a8886c0a-7764-4959-b802-ee54ffc703f7.png)