TROUBLE SHOOTING
Note. See TROUBLE SHOOTING article in GENERAL INFORMATION.
Testing Positive Diode
Check continuity between diode lead and positive side of heat sink. Connect ohmmeter positive lead to diode lead and negative lead to heat sink. (Scheme 1) Continuity should exist. Reverse ohmmeter leads. Continuity should not exist.
Testing Negative Diode
Check continuity between diode lead and negative side of heat sink. Connect ohmmeter negative lead to diode lead and positive lead to heat sink. (Scheme 2) Continuity should exist. Reverse ohmmeter leads. Continuity should not exist.
Testing Diode Trio
To check diode trio, remove diode assembly from rear cover. Using an ohmmeter, check each diode for continuity. Continuity should be present in one direction only. If continuity is present in both directions, or continuity does not exist in either direction, diode trio is faulty. If any diode is faulty, replace complete rectifier assembly.
