Repair and Testing Instructions for T1 Page 39
Alternator 0120 689 552 Edition 001
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UA/ASV 04.12.98 T1ALTFinal.DOC
11.3.3 Open Exciter Diode
This pattern displays a characteristic dip in the normally smooth wave characteristic of a defective exciter
diode. This would require disassembly of the alternator and replacement of the rectifier assembly.
Figure 41 Open Exciter Diode
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