635 / 1980
ELECTRICAL
623
ELECTRICAL
(b) Testing of negative heat sink diodes
(i) Continuity check
Connect as shown in figure. Use the multi meter
with two probes. Connect the negative probe of
multimeter to phase connecting points and
positive probe to rectifier body All diodes should
indicate continuity .If not, it indicates open
circuit. Replace the rectifier assembly.
(ii) No Continuity check
Connect as shown in figure. Use the multi- meter
with two probes. Connect positive probe of
multimeter to phase connecting points and
negative probe to rectifier body. All diodes should
indicate no continuity. If not, it indicates short circuit.
Replace rectifier assembly.
REGULATORCHECK:
Use LTVS authorized test equipment for checking
Regulators and test as per instructions given in
the test equipment manual. Connect the negative
to the equipment as per the markings on the
Regulator.