Table of Contents
Advertisement
OM-2031
6. Diode Test
Test values for diodes are not given here because they could be misleading. Test values may vary even
between diodes of the same part number, rating, and manufacturer. General instructions for testing di-
odes follows:
A. Disconnect diode lead(s).
B. Use a good quality ohmmeter. An instrument which indicates 50 ohms at the center of the scale is pref-
erable.
NOTE: Make certain the battery is in good condition and the pointer is adjusted to zero when the test
lead points are shorted together. Set the scale selector to RX1.
C. Hold one ohmmeter lead point on the threaded end of the diode. Hold the other lead point on the wire
terminal end. Observe and note the indicated resistance. Now reverse the lead connections on the diode.
Again observe and note the ohmmeter indicated resistance. Generally speaking, if an infinite or very high
resistance was indicated with the leads connected one way and a low, readable resistance was indicated
with the leads connected the opposite way, the diode may be considered good.
August 5/89 Revised
2-3
Page 17
Advertisement
Table of Contents
