Radio Shack 22-168A - Page 26

2. Rotate the function selector to the diode posi-
tion.
3. Connect the probes to the diode you want
to check and note the meter reading.
os iN
- +
| cathode Mark =
26
© If the display shows a value, for example 0.2
for a germanium diode or 0.5 for a silicon
diode, reverse the diode. If the meter indicates
an overrange, the diode is good. The dis-
played number is the diode’s actual forward
voltage (up to 2.0 volts).
If the display indicates an overrange condi-
tion, reverse the polarity of the connection. If
the display shows a value, the device is good.
The displayed value is the component's
actual forward voltage (up to 2.0 volts). If the
display still indicates an overrange condition,
the device is open.
e If the display shows a value both before and
after you reverse the polarity, the device is
shorted.
When you connect the diode to the meter and
the meter displays the device's forward voltage,
the red test probe or socket is connected to the
diode’s anode, and the black probe or socket