How to use multi meter to check a faulty components - GSM-Forum

Daibi4 · 10-01-2023, 12:41

Please can anyone teach me how to use a multi mater to read a faulty diodes, resistors, inductors, capacitors etc

Shaldon5 · 10-29-2023, 18:16

HI there. Sure thing! Using a multimeter is a fun*****tal skill in electronics. Here's a basic tutorial on how to test various components with a multimeter:
Testing Resistors: Set your multimeter to the resistance (ohms) mode.
Connect the multimeter's leads to the resistor's leads. It doesn't matter which lead goes where.
The multimeter will display the resistance value. Compare this value with the expected resistance of the component to see if it's within tolerance.
Testing Capacitors: Set your multimeter to the capacitance mode (often denoted as "uF" or "F").
Connect the multimeter's leads to the capacitor's leads, being mindful of the polarity if it's a polarized capacitor.
The multimeter will display the capacitance value. This value should be roughly within the rated capacitance of the component.
Testing Diodes:Set your multimeter to the diode testing mode, usually represented by a diode symbol.
Connect the multimeter's positive lead (red) to the anode and the negative lead (black) to the cathode of the diode.
If the diode is functioning, the multimeter should display a voltage drop (around 0.5 to 0.7V) in one direction and show "OL" (over limit) in the other direction. You may also find the John Deere manual useful. There are a lot of instructions for working with electronics and various equipment. It helps me a lot.

10-01-2023, 12:41	#1 (permalink)
Daibi4 Junior Member Join Date: Apr 2023 Location: Nigeria, Port Harcourt Posts: 2 Member: 3036291 Status: Offline Thanks Meter: 0	How to use multi meter to check a faulty components Please can anyone teach me how to use a multi mater to read a faulty diodes, resistors, inductors, capacitors etc

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10-29-2023, 18:16	#2 (permalink)
Shaldon5 Junior Member Join Date: May 2023 Location: USA Age: 32 Posts: 13 Member: 3037387 Status: Offline Thanks Meter: 0	HI there. Sure thing! Using a multimeter is a fun*****tal skill in electronics. Here's a basic tutorial on how to test various components with a multimeter: Testing Resistors: Set your multimeter to the resistance (ohms) mode. Connect the multimeter's leads to the resistor's leads. It doesn't matter which lead goes where. The multimeter will display the resistance value. Compare this value with the expected resistance of the component to see if it's within tolerance. Testing Capacitors: Set your multimeter to the capacitance mode (often denoted as "uF" or "F"). Connect the multimeter's leads to the capacitor's leads, being mindful of the polarity if it's a polarized capacitor. The multimeter will display the capacitance value. This value should be roughly within the rated capacitance of the component. Testing Diodes:Set your multimeter to the diode testing mode, usually represented by a diode symbol. Connect the multimeter's positive lead (red) to the anode and the negative lead (black) to the cathode of the diode. If the diode is functioning, the multimeter should display a voltage drop (around 0.5 to 0.7V) in one direction and show "OL" (over limit) in the other direction. You may also find the John Deere manual useful. There are a lot of instructions for working with electronics and various equipment. It helps me a lot.