4.Record your working battery voltage:
5.Measure the voltage used between the following points:
TP-A to TP-B across the safety diode:
TP-B to TP-C across the 470O resistor:
TP-C to TP-D across the LED:
6.Now add the voltages from #5:
7.List working battery voltage:
(Recorded in item 2)
8. Compare the voltage used by all of the parts to the voltage provided by the battery.