(3)DIODE RECTIFIER
Yellow
Gray | Orange |
|
| Orange | Diode rectifier |
| Yellow | |
| Yellow | |
|
| |
| Yellow | Gray |
|
|
Circuit tester
The circuit inside the diode rectifiers is as shown in the chart above.
Check continuity between each terminal by using a circuit tester.
The rectifier is normal when continuity is as follows:
Checking table for analogue circuit tester
Analogue circuit tester |
| Apply black |
| needle of the circuit tester | |||||||
|
| ||||||||||
|
|
|
|
|
|
| |||||
|
|
|
|
|
| Yellow | Yellow | Orange | Gray | ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Yellow | - | No continuity | No continuity | Continuity | ||
|
|
|
|
|
|
|
|
|
|
|
|
Apply red |
|
|
| needle | Yellow | No continuity | - | No continuity | Continuity | ||
of the circuit tester | Orange | Continuity | Continuity | - | Continuity | ||||||
|
|
|
|
| |||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Gray | No continuity | No continuity | No continuity | - | ||
|
|
|
|
|
|
|
|
|
|
|
|
Checking table for degital circuit tester
Degital circuit tester |
| Apply red |
|
|
| needle of the circuit tester | |||||
|
|
|
|
|
|
|
|
| |||
|
|
|
| Yellow | Yellow | Orange | Gray | ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Yellow | - | No continuity | No continuity | Continuity | ||||
|
|
|
|
|
|
|
|
|
|
|
|
Apply black |
| needle | Yellow | No continuity | - | No continuity | Continuity | ||||
| |||||||||||
of the circuit tester | Orange | Continuity | Continuity | - | Continuity | ||||||
|
|
| |||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Gray | No continuity | No continuity | No continuity | - | ||||
|
|
|
|
|
|
|
|
|
|
|
|
NOTE 1 : Because of the difference of measuring method between the analogue circuit tester and the digital circuit tester, polarity of tester needles should be reversed.
NOTE 2 : "Continuity" means forward direction characteristics of the diode, and different from short circuit condition
(in which a pointer of the tester goes out of its normal scale), shows resistance to some extent. When results of the checking indicates failure even in one section, replace with a new one.
NOTE 3 : Some analogue testers like "Simpson" brand operate as some as digital testers.
(4)AC RECEPTACLES
Check that no live part or wire or plastic part is burnt.
– 20 –