If you are in the electronic repair line you would know that checking electronic components in electronic boards can take up lots of your time especially if you do not know the short cut way to test it. How to check electronics parts using a multimeter our. The gmm supplies a sinewave of voltage to the component under test and then plots the voltage vs current relationship on the display. Connect the black test lead to the negative terminal of the battery. Feb 26, 2015 how to test electronic components slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Learn in testing electronic components using multimeter. Three primary electronic components are used in circuits. The internet also allows us easy interaction with other technicians around the world and manufacturers tech support to exchange ideas and information and even to file some of our warranty claims. Electricity is just a flow of electron from one level to other upper level to lower mostly. How to test electronic components linkedin slideshare.
In this digital meter to measure resistance range have been a total of 6. Diagnosing of defective printed circuit boards pcb. Today, digital multimeters and analyzers are often inexpensive and easy to use. If playback doesnt begin shortly, try restarting your device. Using the buzzer file of the digital multimeter, you can quickly check the quality of the electrolytic capacitor. Abcs of multimeter safety multimeter safety and you voltage spikesan unavoidable hazard as distribution systems and loads become more complex, the possibilities of transient overvoltages increase. Digital multimeter 1 how to use a multimeter guide id. Multimeter testing current, voltage, and continuity these are typical walmart or hardware store voltmeter. How to test electronic components with a multimeter our. Now why did we set the multimeter to the 20v dc setting. Test each pair of leads both ways six tests in total. Throughhole soldering is needed to connect components to the board. Motors, capacitors and power conversion equipment, such as variable speed drives, can be prime generators of spikes.
A multimeter is an ideal piece of test equipment to help with fault finding an electronics transistor circuit. Perform testing of repaired items for operational reliability. With more and more everyday items adding electronics and electrical features, the ability to measure electrical flow has grown increasingly important. How to test electric components with a multimeter freds. The test meter or multimeter is one of the most flexible items of test equipment. How to diagnose a circuit board with a bad transistor. Perform repair or rework of electronic components andor damages in a timely manner. Tweezers are handy if you are needing to test smd components. How to check basic electronic components using a multimeter. Testing a power supply manually with a multimeter is one of two ways to test a power supply in a computer. Dec 08, 2010 basic electronic components such as resistors, capacitors, diodes and transistors are widely used in any electronic devices and gadgets. Set the functionrange switch to the appropriate resistance ohms range shown above. You have to set the multimeter to a range that it can measure. If you suspect that your circuit board has a bad transistor, you can test for a failure by using a multimeter.
I have spent countless hours testing and analyzing electronic components and found out the right and accurate ways to test them. Before getting into details of printed circuit board, there are some basics you need to know about circuits. The baseemitter be junction should behave like a diode and conduct one way only. Associates degree in electronic engineering technology experience.
Basic electronics components testing using multimeter in. Learn how to use multimeter to test electronic components and perform electronic repair like a professional right now. The most basic things we measure are voltage and current. This ebook is written for beginners, hobbyist, technical collegeuniversity students and for those who have an interest in electronics or even seasoned electronic repairers i have spent countless hours testing and analyzing electronic components. The esr meter is ready and should be put to do the work that it knows bestcatching those capacitors which have been giving you headache right in circuit. For this purpose, take avo meter or digital multimeter and select resistance in avo meterrotate the knob to the. Using component test on the fluke 867b graphical multimeters. If you ever break a probe, they are cheap to replace. Nov 08, 2014 this video is about how to test simple components like resistors,capacitors, diodes, transformer, speaker, transistor, fuses etc with a multimeter. The zip file contains labview vis and other files which will be used in some of the experiments during the course. A basic electronics device or instrument used to measure voltage or electrical potential difference between two points in electrical circuits is known as voltmeter. Testing components electronics forum circuits, projects. Knowing how to conduct a test on this components using a multimeter would give you an idea on how to trouble shoot and repair any defective cellphones or electronic equipments at home.
Just like with resistance testing, youll need to manually set the expected range and make sure both the multimeter can handle the maximum expected voltage. Perform equipment troubleshooting to determine repair needs and parts of items relating to acdc drives, power supplies, and printed circuit boards. This is just one of the solutions for you to be successful. Multimeters are a tool that we use to measure multiple characteristics of electronics. How to manually test a power supply with a multimeter. To accomplish this, follow steps 1 through 4 above and the following with the battery in holder and device turned on. In this video i have showed you guys how to test electronic components like,transformer,inductors,capacitors,diodes,resistor,transistor,fuzes. Test meters or multimeters are used everywhere from home workshops to high technology laboratories and by people who range from electronics enthusiasts to students, and service engineers to high technology development engineers. Analogue signature analysis to test the unpowered printed circuit boards pcbs. How to use a multimeter learn at sparkfun electronics. To read the rest of the chapter of testing electronic components.
This tutorial will show you how to use a digital multimeter dmm, an indispensable tool that you can use to diagnose circuits, learn about other peoples electronic designs, and even test a battery. A mosfet needs a voltage higher than is produced by your multimeter to turn it on. Almost all of our parts and service manuals and schematics pdf files are obtained via the internet. Digital meters are introduced, as are types of voltmeters and ammeters operating on different techniques of analogtodigital signal converters. Use the inner scale where every box represents one 1 ohm, all electrolytic capacitors should have esr less than 2 ohm. Note the different length terminals on one of the capacitors. The basic electronics testing equipments under this category include the following.
Figure 1 low resistance pipe high resistance pipe rough walls low pressure high. This ebook is written for beginners, hobbyist, technical collegeuniversity students and for those who have an interest in electronics or even seasoned electronic repairers i have spent countless hours testing and analyzing electronic components and found out the right and accurate ways to test them. Namaste everyone this is the part1 video about testing electronic components by using multimeter or other ways. How to use a multimeter for electronic testing digital multi meters come in various forms and specifications for use with electronic testing. Aug 09, 2017 in this video i have showed you guys how to test electronic components like,transformer,inductors,capacitors,diodes,resistor,transistor,fuzes and bridge rectifier etc. When youre testing components, always start with continuity. How to diagnose a circuit board with a bad transistor sciencing. The capacitor stores energy in an electrical field, the inductor stores energy in a magnetic field, and a resistor increases the. Now connect both ends of resistor with the avo or digital multimeter terminals. Basic electronic components such as resistors, capacitors, diodes and transistors are widely used in any electronic devices and gadgets. A properly executed psu test using a multimeter should confirm that the power supply is in good working order or if it should be replaced. The resistor is an electronic component that has electrical friction. Testing components electronic circuits and diagrams. You could measure an infinite resistance between its gate and source and between its drain and source when it is off gate connected to source, then connect a 9v battery between gate and source to turn it on then measure the onresistance between drain and source with your.
Resistance measurements must be made with the current off. Resistors a twoterminal passive component that opposes the flow of current reduces the electric current and at the same time lowers the voltage levels in a circuit. For this purpose, we have started a multimerer tutorial where we will use dmm digital multimeter and avo meter amperevoltageresistance meter or multimeter digitalanalog to test different electrical electronics devices, instruments and components to find their terminals and condition such as are are they short, open, good or faulty. If you need to find out whether electronic components or circuits work, you can easily test them in your home with a multimeter. Electronic repair career opportunities circuit board repair. Capacitors are one of the most commonly used electronic components. Often circuits like transistor radios fail after they have been used for many years, and it is useful to be able to mend them also when constructing equipment, circuits do not always work first time and it is necessary to faultfind. Holes go all the way through the board from one side to the other. The small capacitors usually used in electronics are often measured in microfarads and nanofarads.
Basic electrical and electronic components passive devices devices or components which do not require external source to their operation. Touch the test leads to the resistor or nonenergized component to be measured. Follow along to master the three most basic functions of a multimeter. The sparkfun digital multimeter, h favorited favorite 40. Advanced ones check properties such as capacitance and transistor gain, but even the most basic ones are able to measure resistance, voltage and current.
This friction opposes the flow of electrons and thus reduces the voltage pressure placed on other electronic components b y restricting the amount of current that can pass through it. Vii considerations for capacitor testing 1 when measuring with a multimeter, select the gear according to the rated voltage. Use the 2000k range when testing for resistanc e values in electronic components such as resistors and potentiometer. In testing components how to test a diode diodes are one of the components that can be tested very easily. Components are attached to a printed circuit board. Component tester test almost anything being an electronics student or hobbyist, you may have thought of getting a tester that could test almost anything the electronics components, obviouslynow what if i tell you that you can have one and that too made by yourself under inr 600 on. Multimeters are instruments that allow the user to test or measure electronic components. So if youve measuring a 12v battery, use the 20v setting. Testing electronic components with a multimeter youtube. It is the power provided to every instrument ranging from small lights to heavy machinery. Every fixer should know their way around a multimeter, which has just north of a zillion uses for testing electronic components and circuits. Use the 2000k range when testing for resistanc e values in electronic components such. Ordinary diodes as wells as zener diodes can be checked by using a multimeter.
Component testing range in multimeter digital multimeter to measure resistance from the black negative com wrote to prob plug and red positive to prob v. If you continue browsing the site, you agree to the use of cookies on this website. Students should download above file and unzip in on hisher computer. Electrical circuit testing multimeter free pdf ebook. This compilation is not intended as a complete survey of the field of electrical and electronic equipment testing. Once, only professional electricians and devoted hobbyists could afford a good multimeter. How to test electronic components slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Some components can be electrically ok, but a voltage check can ensure it is mechanically ok. Set a digital multimeter to diode test and an analogue multimeter to a low resistance range such as. How to test a capacitor with a multimeter in 5 ways. To check if the resistor is in good condition or broken, we use a multimeter. This pool of electrons is available for electronic components to use. Because electronic circuits can cease to function if any one of their various components fail, circuit board troubleshooting can be a delicate and timeconsuming process. Full text of testing electronic components by colin mitchell. How to check basic electronic components using a multi. The digital multimeter dmm is an essential tool in every electronic enthusiasts arsenal. Full text of testing electronic components by colin mitchell see other formats. A list of some manufacturers of electronic voltmeters, ammeters, and oscilloscopes is. The first describes the testing of various electronic components, assemblies, and systems. Apr 16, 2020 testing a power supply manually with a multimeter is one of two ways to test a power supply in a computer.
How to troubleshoot a circuit board with a multimeter pdf. So in an electrical circuit, there is always a voltage or current source, components of circuit and electricity always go from a positive voltage level to negative voltage level. Simple secrets to speed up on how to test electronic components part i. How to check electronics parts using a multimeter our pastimes.