as long as we are talking diodes/dead car tape deck

[motwnbro]

can a multimeter be used to test a diode on a circuit board to see if it is in working condition. this applies relates to the dead car tape deck that i posted earlier.<p>thanks for the responses on that subject. <p>martin

[billdar]

I can think of 3 ways off the top of my head:<p>1. My DMM has a diode tester on it, just pop it in.<p>2. Use the continuity function on your DMM, It should beep from cathod to anode, and give a high impedance from anode to cathod.<p>3. Pull the diode out of the circuit and make a simple R - Diode circuit and measure the voltage across the diode with the battery terminals switched.<p>4. ( i lied about 3 just pull the diode out and replace it...

[viveguy]

To add to the above,if you have the unit open and connected to power,see what the voltage drop across the diode is.If it is .7,it is conducting.