All You Need To Know About The Diode Test Mode On Your Multimeter To Fix Stuff. How to use.

In this video we look at The Diode Test mode, resistance and continuity on your multimeter. Learn how to use which mode when and where, for both in circuit and out of circuit testing. In part one learn the difference between Diode and resistance mode and look at out of circuit component testing. Part two will concentrate on in circuit testing
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TEST METERS
Aneng AN8009
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BENCH PSU
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SOLDERING
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Thank you
Richard

[@NorthElectronFix]

NPN Positive on the Base Conducts, PNP negative on The base Conducts. Great way to remember. Thanks Richard.

[@adaboy4z]

This was excellent for a Newbie electronics Hobbyist! I learned so much on how to test my vintage equipment!!!

[@TerryDeSimone]

Yes, *PLEASE* more vids like this.. more of like how components work, when testing & ideally *how* to test em.. and the kind-of expected values.. *AND* what shouldn't happen when testing.. like in diode mode, *in-circuit* .. when it SHOULDN'T beep, different pins.. etc.. so we can apply this knowledge to repairing.. i'm a beginner trying to learn to repair stuff.. *AND* explain more about in-circuit as well as out-of circuit values & beeps... etc.. and Thank You for the vids, keep up the good work.. sorry to hear about ur Dad... -- oh & when you write out the diagrams can you put the leads *on* the paper and show *what* goes where for whichever component.. thanks..

[@viorelpopescu4990]

Prietene electronica este o meserie care se invata mai intii pe hirtie Mult, mult studiu si mai cu seama in particular Astazi aveti alte facilitati nu ca mine in anii de inceput 1970 Gasiti pe internet orce va intereseaza Totul depinde cum va rationalizati studiu Incepeti cu cunostinte generale despre electricitate invata ce e tensiunia apoi curentul tipul (alternativ, continu....) cum este produs etc invatati marimile si unitatile de masura folosite in electricitate si electronica (tensiunea in V curentul in A puterea in w, rezistenta in ohmi etc apoi simbolurile din schemele electronice , componentele si rolul lor in circuit identificare terminalelor etc) Toti vor sa REPARE Ce? Daca tu nu ai habar de ce tii in mina Ce sa repari? Invata tot ce consideri necesar si atunci cind privesti cite un videoclip din asta incepi sa intelegi aproape din ochi despre ce e vorba in mare dupa care treci la studiu pe schema si aplici metodologia depanarii care este si ea impartita si subimpartita in diferite etaje (etaj de alimantare cu componentele lui Trf, dioda s-au punte redresoare elect rolitice de filtraj si rezistori limitatori de curenti circuit de stabilizare si in unele cazuri cu circ de protecte la suprasarcini etc toate acestea genereaza U si A necesar circuitelor de lucru Circuitele de lucru cu dif etaje cu comanda externa manuala, radio etc interna data de ascilatoare temporizatoare traductoare etc E nosol e mult de invatat si mai cu seama de memorat extrem de multe date Nu e chiar jucarie, iau letconu si lipesc si deslipesc la plezneala nu merge daca vrei sa faci treaba invata macar ce am spus eu ca mai departe te c vei dumiri singur si vei invata daca iti place

[@TerryDeSimone]

@@viorelpopescu4990 Thank You...

[@tofix1603]

Excellent video! Thank you Richard!

[@boblevey]

That was excellent and just what I needed. Great teaching and channel!!!

[@bobpitt1261]

Excellent tutorial Richard, thanks.

[@viorelpopescu4990]

Cred ca Richard se distreaza pe seama voastra Este sigur 100% ca nu veti invata nimic Nu sinteti din generatia noastra eu se pare ca sint mai in etate ca dm am 70 de ani Noi am fost generatia marilor descoperiri stiintifice nu trecea luna sa nu afli o noutate prin anii 70 - 80 de la spatul cosmic la marile descoperiri in electronica de la tuburi la Circ integrate procesore si arii tranzistorizate de la tubul chinescop la ecranul plat LCD toate au fast aduse in existenta de generatia noastra inclusif telefonul personal de astazi transmisiunile prin sateliti calculotorul ceasul inteligent si multe, multe altele si in domeniu sanatatii in orce domeniu sa facut pasi uriasi Aproape intreaga generatie nascuta intre 1950 si 1960 a fost generatia cu cei mai multi si capabili oameni Dupa 1960 sa slabit treptat si usor acum ajunginduse chiar la un nivel jalnuc la mai bine din jumatate din populatia lumii Nu ma laud o spun dupa ce vad lucruri care eu la stiam si stapineam bine inca din clasa a V-a si a VI- astazi vad chiar absolventi de liceu care se uita la mine ca loviti de bombe si nu stiu despre ce vorbesc Nimic nu se poate realiza fara invatatura puneti mina si studiati lucrurile nu sint cum vi se par

[@elenium115]

perfect as usual. Tons of knowladge to absorb.

[@johnhawkes7681]

This is one ridiculously informative video. Learnt so much. Thanks Richard.

[@alanbickerstaff868]

Great information the little diagrams make it so much easier to understand and remember the information

[@mkkd85]

Hello Richard. Thank you for the video, it's very informative and easy to understand. Please post more videos like this one!

[@SlavkosHobbyChannel]

Great information, thank you for sharing!

[@LearnElectronicsRepair]

You're welcome

[@CooLDEaFY4204Me]

Awesome teaching Thank for video.. much appreciate it... 5 Stars plus Richard from Kenai Alaska

[@leetucker9938]

excellent video today . Gonna measure some of my meters now

[@weerobot]

Great Stuff...

[@filipc3010]

Hi Richard, I know what's missing here. PNP and NPN Darlington diode testing! I think it's worth to explain the testing methods. It's still a bit of mistery for me how we are able to check double junction. Thanks in advance!

[@baghdadiabdellatif1581]

Thank you

[@Dutch-linux]

LOL to remember the polarity of a transistor in the netherlands is for PNP pijltje naar plaatje (Arrow to plate) and NPN niet pijltje naar plaatje (No arrow to plate) 😂

[@Lightrunner.]

Thanks Richard 👍👌🖖 The basics are essentielle to learn and understand electronics. Did i say that??😱🤣🤣

[@LearnElectronicsRepair]

You did and you're right. Part 2 will build on the basics, be more advanced and probably teach a few old hands some new tricks 🙂

[@Lightrunner.]

@@LearnElectronicsRepair new tricks😱🤔 , new tricks are more trickyer🤣. Yeahhh new tricks makes live easyer.🖖

[@viorelpopescu4990]

Bine si eu ce am spus?

[@viorelpopescu4990]

​@@Lightrunner.Daca crezi ca electronica se invata CU TRUCURI esti naiv rau

[@Lightrunner.]

@@viorelpopescu4990 in english please😭😭

[@force4200]

Great channel i learned som mutch today the Brain is hot

[@ashenafihirpa1042]

I like this video. It is a very good one for beginners. Do all multimeters have diode mode? Is diode mode similar to continuity checking mode?

[@roberthopkins8089]

Im decorating and watching this and still following... Wish you had been my lecturer at college... You keep it simple thanks for your teaching

[@rashidshirinov3642]

Please do tutorial about oscilloscope, it will be great, there is no such a good video that explaining this tools ❤

[@GapRecordingsNamibia]

Funny how no one gave theTIP3055 package? TO-247 Thanks Richard.Very informative....

[@Dutch_off_grid_homesteading]

Heya, I still have the problem with the like bc337 transistor because of the differant lay out of the pins but practics makes purfect

[@NorthElectronFix]

Let's learn.

[@HenrikHvalpen]

I tried testing an led but my multimeter can't measure anything in diod mode. I can measure normal diode thought. Is it only some multimeters that can measure LEDs and make them light up?

[@CRAZY_VIDS07]

You cannot touch leads while testing your fingers will affect reading.

[@davet3804]

Nice back to basics If you can’t remember which is lower say ‘clowlector’ and you will never forget which is which

[@elantric]

UNI-T UT117C has same Fluke style "chirp" on DIODE TEST.

[@michaelcostello6991]

In the beginning of video at 5:22 you have 0.6 volts when doing resistance measurement . How come when it should be constant voltage of say 0.1 volts ? You are reading 10 M Ohms through the internal resistance ofmeter measuring voltage.

[@user-yb6fk9ju2d]

Can you help please? I've got two multimeters , one small fluke and a big bench multimeter I bought. When I do diode readings , they're different on both multimeters. When I do the reading on the bench multimeter it's different to the readings I get off the fluke multimeter by a lot . Does that mean one of my multimeters is broken? Thanks

[@Lightrunner.]

Yes , eventuelly, because show the meassurement voltage of your multimeters.

[@UltraUltaderdritte]

No necessarily, they may simply use different constant currents in diode mode. As the junction voltage depends on the current you will get different voltage readings. Just measure the current in diode mode with the other meter in current mode and you will see how much they differ.

[@TheEmbeddedHobbyist]

It depends on by how much they differ, if its more than a few percent then yes one is duf. A normal diode will read about .6 - .7V so the meter that reads close to that should be the good one.

[@TheEmbeddedHobbyist]

The collector is normally a lower value as the collector is a larger junction on the silicon. This helps in the collection of electrons..

[@LearnElectronicsRepair]

@@UltraUltaderdritte Yes exactly that. In this video I showed that the Aneng could light blue and white LEDs and give a voltage reading, whereas the Fluke gives no voltage reading but still lights the LED. Different brands of multimeter will output different voltages and different constant currents in diode mode. This does not mean either of them are faulty, and there is no international standard that I know of which a multimeter should adhere to in this respect.

[@CARLITOTESTIGO]

why if i sense voltage on a working power mosfet i mean during operation, it causes to blow it? what is the explanation?

[@LearnElectronicsRepair]

That shouldn't happen, at least not if you have your meter in volts mode. Which pin are you measuring? The gate?

[@kas262]

​@@LearnElectronicsRepair Been there done that 😐 If you mesure voltage between drain and gate on a working SMPS, you will definitely blow the mosfet

[@plinker439]

7:21 'It"s about 100 ohm resistor'.

[@edwinwaugh]

😁

[@anthonywatson8077]

you really need to learn how/where to place the camera relative to the item. Spoils an otherwse good video

[@za_ozero]

After a triangle you failed in continuing in a comprehensive way😢

[@NorthElectronFix]

1 st

[@TerryDeSimone]

lol

[@doogsm6013]

🍪

[@mevk1]

Videos are way too long. "BE BRIEF, BE BRILLIANT, BE GONE"