Oscilloscope Patterns and Waveforms

WAVE PATTERN CHECK USING A OSCILLOSCOPE




Measurement Method
Connect the oscilloscope probe to the generator "B" terminal.

Standard Waveform:

ABNORMAL WAVEFORMS EXAMPLES

NOTE:
- The size of the waveform patterns can differ greatly, depending on the adjustment of the variable knob on the oscilloscope.
- Identification of abnormal waveforms is easier when there is a large output current (regulator is not operating). (Waveforms can be observed when the headlights are illuminated.)
- Check the conditions of the charging indicator light (illuminated/not illuminated) also, and carry out a total check.