Service manual

4. Troubleshooting
4-13
［D］ Checking Rotary Rectifier (Diode)
Remove the silicon rectifiers (diode) of rotary rectifier, and then measure them with a tester.
SG06013
Note: Rotary rectifier has 3 pieces of silicon rectifiers of forward polarity at K side and 3 pieces
of silicon rectifier of reverse polarity at J side. Be care to distinguish the polarity.
(positive and negative)
［E］ Checking Varistor
Disconnect the terminals of surge absorber, then measure the resistance value between both
terminals. Resistance value must be more than 100kΩ. (Range of tester×kΩ)
SG05092E
Normal part Defective part