Checking positive diodes

Checking positive diodes

• Turn the diode pack the other way up;
• connect the ohmmeter leads as shown in the figure;

NOTE The readings on the three terminals of the positive diodes should show infinite resistance (no current passing).

• reverse the positions of the ohmmeter leads as shown in the figure.

NOTE The readings on the three terminals of the positive diodes should show the diode's resistance (current passing).

Checking negative diodes

• Connect the leads of an ohmmeter as shown in the figure.

NOTE The readings on the three terminals of the positive diodes should show infinite resistance (no current passing).