Repair and Testing Instructions for T1 Page 38
Alternator 0120 689 552 Edition 001
All rights rest with Robert Bosch Corp, including patent rights. All rights of use of reproduction and publication rest with R. B. Corp.
UA/ASV 04.12.98 T1ALTFinal.DOC
11.3.2 Normal Pattern
This image represents a properly functioning alternator. The D.C. voltage produced has a small harmonic wave.
Small spikes may be superimposed on the oscilloscope screen if the voltage regulator is regulating. Applying a
load to the alternator output terminals can turn off the regulator.
In order to be able to compare oscilloscope images, the oscilloscope so the pattern fits between two vertical 10x
divisions.
Figure 40 Normal Pattern
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