Diodes - Cub Cadet RZT-S Professional Shop Manual

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Diodes

Silver band
(-)
electrons flow from the negative to the positive.
Figure 7.47
Diode scale
Figure 7.48
Figure 7.49
(+)
Continuity
Silver band
(-)
(+)
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What is a diode? A diode acts like a one way valve,
allowing current to flow in only one direction.
See Figure 7.47.
• Which way does this electrical check-valve work?
There will be a band on one end of the diode. The
band indicates the negative side of the diode
• Most DMMs have the ability to test a diode.
Testing a diode:
1. Isolate the diode in the circuit.
Set the DMM to the diode or Ω scale.
2.
See Figure 7.48.
3. Attach the negative lead of the DMM to the side of
the diode with a band on it.
4. Place the positive lead on the other side of the diode.
5. There should be continuity. See Figure 7.49.
Electrical System
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