TM 9-4120-402-14
4-38. RECTIFIER (CR1) AND CAPACITORS (C1 AND C2). - continued
Figure 4-39. Rectifier (CR1) and Capacitors (C1 and C2)
c.
Test.
(1) Rectifier (CR1).
(a) Using a multimeter on high ohms setting connect negative (-) lead to terminal 2 and positive (+) lead to
terminal 1 or 3. A low resistance reading should be indicated.
(b)
Connect positive lead to terminal 2 and negative lead to terminal 1 or 3. An open circuit should be
indicated.
(c)
Connect positive lead to terminal 4 and negative lead to terminal 1 or 3. A short circuit should be
indicated.
(d)
Connect negative lead to terminal 4 and positive lead to terminal 1 or 3. An open circuit should be
indicated.
NOTE
The ohmmeter test does not show the behavior of a capacitor under load. Such
testing requires special equipment which is not economically practical for testing
small capacitors. If breakdown under load is suspected, replace the capacitor.
4-114
