Episode 54 Basic Component Faultfinding with a Multimeter

[@tn7198]

You are the man, thank you for this. I hate people who say don't touch anything electronic, just replace it. This is a much better answer in my opinion-- teaching and sharing what is safe and reasonable to do.

[@joshymcdaniel9233]

I’m a year late but agree 💯% Personally I like to tinker and if I can fix it it’s a bonus can’t make it worse as it was already broken lol’ Also helps one learn how everything works on a board’ The sad truth with “modern day”electronics is companies either build them to fail (planed obsolescence) or they manufacture them so cheap Aka they make them not meant to be serviced’ so fixing them is near impossible’ or a new product is more “cost affective” if u can fix a tv board absolutely worth it! For a person who doesn’t know how not worth it as a new TV will cost about what a tech will charge to fix it’ For me I agree with u all the way’ I would repair an older electronic any day if the week over goi g for modern day cheap crap’ same with appliances 80s appliance are an eye sore but they were built like a tank! 😂 Take care brother!

[@tevitasakalo6189]

Very simple explanations and extremely helpful.Really helped in my repairs at home.

[@EASTENDGLEN]

thank you very much sir, one of the best videos I nave seen for novice who wants to diagnose.

[@heidih7600]

Extremely helpful! This helped me find the fault in my electric organ.

[@raycimbalnik5159]

Getting my first multimeter this week,thanks for the video. Alot of great info

[@MrDmadness]

You likely already know this by now but DO NOT test resistance on a live circuit or it will instantly kill your meter :)

[@matnetik]

This is a SOLID breakdown, thanks!

[@jim-jf5rn]

This was extremely helpful. thank you! I had received a board from a glass top stove that supposedly didn't work. fortunately all the components on the board tested out perfect. But unfortunately these people had German roaches and all the roach crap was fouling the whole system up. I clean all the feces off of the board and it worked perfectly. So people if you have a roach problem and your appliances don't work, that might be the problem. Because roach crap really does screw the whole system up. LOL

[@BrettHoustonTube]

Great info and presentation. Super helpful, thanks so much.

[@andrewmiller37]

Good video, well explained. Thanks

[@anthonyp1975ap]

Loved this tutorial! Thanks for the great info!!

[@jasonsolomon5995]

My guy your videos are really good pls keep them coming

[@curtiseverett1671]

dude......that is so cool your video in the O-scope!!!! That's great!!!

[@kingshearer2]

What's annoying is that some multimeters don't have a capacitance option, like mine! Excellent video all the same, I like your straight forward explainations.

[@cagmito76]

Excellent video up there with the best in subject ! mosfetts are amazing .

[@felix6142]

this video is an amazing guide, thanks so much!

[@henrybartlett1986]

Thanks for doing this. Very useful and concisely explained.

[@donniehayes9419]

Very good video thanks for taking the time to share

[@korrige1]

i like the presentation Evione..looking forward to see more videos.

[@ZsomborZsombibi]

Thanks for showing a deep inspection. So far, I was able to find faulty board parts by visual inspection (e.g. blowed caps or other parts where the smoke "escaped" )

[@malcolmbale9566]

Video checking a faulty board would be good!!

[@NewSkill4508]

Really helped me understand. Thank you

[@johnv5718]

Thanks for the great tutorial 👍

[@mitumkallidin3464]

Lovely video, I learn't some new things.

[@mitumkallidin3464]

@catzndolz past tense: learnt; past participle: learnt 1. gain or acquire knowledge of or skill in (something) by study, experience, or being taught. You clearly confused!!! Go learn🤣

[@joejordan4246]

Great video. Thanks very much!!

[@rtrjmk5]

Thanks. A very helpful video

[@kikawa55555]

Good explanation. Now I can repair my TV😄

[@demoking1422]

Good job clean and simple information Thanks !

[@Grimes907]

It just feels a bit too vague and rushed for a "Basic" tutorial; ie. You take a reading and say "Looks good!" but you never explain what a bad reading would look like or why the readings you took are in fact good.

[@MrDmadness]

It's a hair above basic. The reason the readings were good is due to continuity or lack of. And also because the resistances were within the expected ranges. It's VERY important when dealing with electrical components to expect a reading, in the case of the resistors you can consult a chart online for the colour stripes and compare to your readings.. in general if a reading is within 10% of what's expected the component is considered good. :)

[@Grimes907]

@@MrDmadness Thank you for the reply.

[@MrDmadness]

@@Grimes907 thank you for the pleasant response. It's my life goal to try to be logical and helpful on the internet.. its so important that we turn it into the usefull thing it's meant to be and disperse from the toxicity of it.. thanks for being awesome :)

[@jefffoster3557]

@@MrDmadness thanks for your response. My problem is not measuring components, but correct measuring in circuit. What can we expect to correctly test in circuit with accuracy and what needs to be removed for accuracy. As you and I both know, the majority of faults is with shorted or leakey caps. How can these be measured inline with accuracy?

[@MrDmadness]

@@jefffoster3557 an oscilloscope will tell you anything you need to know. With a volt meter you can test capacitors with the cap funcation ( sometimes paired with the diode function ) to co pare their readings with their identifying markers. For voltage on a board you need 2 points of contact ( one could be ground ) and touch a line trace anywhere understanding that the meter is giving you the differential between those points( eg. If you check the same live wire it will read 0volts as there no differential ) to read amperage in a live circuit is harder, there is a meter specifically for this that's expensive and who's name escapes me at present though as mentioned an oscilloscope can do all functions. One of the first things I learned doing controls wiring is that you should never take a reading without first having an expectation of what it SHOULD be. For resistance readings ( never take these on a live circuit ) it's as simple at touching 2 points and reading the reading, having a wiring diagram helps to see if you are reading g resistance through a component like a mossfet or otherwise. The basic triangle for figuring electrical readings out ( if you have 2 ) is this Volts over amps x ohms , E.g.. 120 vac 15 amp breaker == 8 ohms resistance .. this means that if you have greater than 8 ohms resistance your circuit will not function at all as electrons cannot overcome the resistance Remember also this ( compare ele tricity to water ) Amps = flow ( same as gpm or any other flow in water ) Volts = electrical pressure ( psi in air or water ) Ohms = resistance ( same as friction allowances In plumbing ) Electricians have switches and breakers Plumbers have valves and main isolation They are basically the exact same thing, except specific to their conveyed medium . :)

[@lorenzahendy4824]

this is a very good video ...very explanatory any more like this ...

[@georgekaramolegos]

Very nice video. Can you please make one on how to test the smd transistors ,and other smd components?

[@mungelectronics7601]

You are a good teacher

[@misterjimminyman]

Best video yet. Thanks a lot.

[@yomitadesse7290]

Thank you brother. its amazing lecture

[@aros007z]

Great useful video, thanks!

[@rtrjmk5]

Very helpful. Thanks.

[@robingeorge9977]

Thanks mate.. refreshing info for me

[@AndrewJohnClive]

Lukka! Thanks man!🤘🏽🇿🇦

[@rabokarabekian409]

For process control techs using a Fluke, an easy fault to find is that you left the dial on milliAmps and then connected 120 VAC. Yeh, ya might wanna buy at least of those little custom fuses.

[@RixtronixLAB]

Nice info, thanks :)

[@danielgodlewski9932]

Thanks for sharing.

[@jozsiolah1435]

Analog multimeters are better for this purpose, even if they are inaccurate, and old. Better response and you can test, how the device behaves. Analog multimeters are also ideal to revive locked devices or components. I could restart the charging of a locked ZTE phone, by tapping the port and batt connections with a multimeter, and it started charging. Digital multimeters are better for everything else.

[@seanashcroft9713]

Hey that was lekker my Broe! ........... Sweet as a NUT.............. Cheers .......... ears!!!!!!!!! ............ Shot

[@skykingimagery899]

Excellent. Start with the basics first. The problem with many other KZbins, assume too much from the beginning.

[@phoebebaker1575]

Great video! You have a nice voice.

[@la224]

So a transistor is basically a diode but it can split off to another or multiple components where a diode is just 1 circuit?

[@cheech9095]

great video I'm trying to fault find my electric guitar and this video should help me out thanks

[@TimSamoff]

This is very helpful!

[@chewinggumking]

You're videos are cool.

[@ColinGT]

Excellent video easy explanation brilliant. Quick q i have the fluke 117 there is no "rel" button on this meter to zero out the leads. Is it possible to zero the leads ? As when i set the meter to ohms and check the leads i get a reading of o.2 ohms and can't reset it to zero.

[@binaryfinary2001]

Great video but a tip about capacitors is that if its blown the silver top might be dome shaped or there is electrlytic fluid leak. Obviously this is not for solid state capacitors

[@khanv1ct244]

Thanks Korg.

[@MrDmadness]

I do a LOT 9f diagnosis using my thermal imaging camera.. when components fial they are generally very very hot on the pcb.. OR the power stops there ( you can see it In thermal spectrum ) .. great video though. :)

[@franalmendarez1054]

Thanks you for your channel

[@thepm3972]

Could you do something on checking dc voltage. Bit confused with it. Would gratefully be appreciated. Thanks bud

[@ndkadam1869]

Fine explained

[@sparkytech8787]

Great video, I have the same multi meter and the off feature is so annoying I hate it

[@digitalbilly]

can you test mosfets directly on board or dose it have to be removed?

[@robertgorge1152]

Good way to test .

[@Nepartinis]

Thank you!

[@akinasgreatest01]

For the transistor. Is the base always on the left and collecter on the middle?

[@jarretthilburn3443]

Interesting, I've never seen anyone test electrical components on carpet.

[@شيختيبموزيكتي]

😂😂😂

[@johnf3278]

Very well explained just a little to quick for me as I know nothing about electronics gates ect.thanks

[@SATLFRENCH]

Thanks for the English technical training.

[@mikeatlanta9306]

Best video thanks for this

[@shenkolog]

your video is so helpfull thank you so much

[@3D_Printing]

Wooya; I want an oscilloscope like the one at the start of this video to watch videos's on; LOL

[@len9518]

A good guide, but one issue...overuse of the word "basically".

[@adamsaccount4873]

Well Done Thanks a lot

[@buckmajor]

The only way to do this test is with an expensive multimeter? The standard multimeters don't read capacitance?

[@climate-moneymakingcampaig305]

I have a electric shaver that doesnt charge anymore , i dont think its bcuz the battery is dead, i think its a technical issue that send the power directly to the motor instead of the battery And when its pluged into outlet, the motor starts but gradually it gets more intense, so much that i think it might damage the motor and i get it out of the outlet Any help? Do u have a video about it ? Or can u tell me what should i search to find the solution ?

[@Ad-gc7th]

Clear explanation 😊 You sound South African, your accent.

[@nzwakele]

He is south african

[@KurtCobain2021]

How to measure the mA of a power supply adaptor. Eg. 9v guitar pedal adaptor. ?

[@gregorydebeer823]

I am looking for an apprenticeship in electronics, where can I find such a thing? Nothing on the net...

[@sylvesterlogan8048]

You may just have to first volunteer at an electronics repair shop.

[@MrAndyloz]

Interesting thanks

[@createspaceone]

but dont diodes have different values? i have 2 diodes that have the normal .550 voltage drop and two others that have a .300 voltage drop? is that bad?

[@aaronnorman9755]

I think that depends on the material you’re diodes are made of, your 0.3 voltage drop diodes sound like they could be germanium diodes?

[@olayodeolanrewaju]

How to test for faulty transistor

[@redstrat1234]

Brilliant and much appreciated

[@yaqoobkhan4645]

good sir

[@alfricko]

Good job but OL is Open Line not Over Load

[@SAMUELCHASHA-nw8ft]

Great

[@jamessamuelbrumby]

I was of the understanding that OL on a DMM ment "Open Loop"? Or are you saying "Over Load" on the Diode test setting in particular? Cheers.

[@bigmedge]

Both mean the same thing - open circuit

[@simionalexandru9546]

I have the exact same oscilloscope and this feels weird xD

[@nono-wp2xs]

Thank you!!!!

[@kumaran898989]

Sir, thankyou for your video...

[@pradeepmahendrasemage4043]

Nice.

[@kaggwaramathanmuwonge9017]

Thanks bor

[@cricket6009]

Thank you

[@edwardgilmour9013]

Sorry this would make more sense to a novice if the cct symbol was drawn next to the meter and explained as a part of the process

[@chicamepa]

Sooo Thankful!!!

[@mikeatlanta9306]

What are you shorting the capacitor out with?

[@drameriemmanuel1187]

Thanks alot

[@trevormafatshi]

Hi how do i get in contact with you

[@yemaneGmedhin-v4j]

how to test varsistor

[@alunroberts1439]

schottky diode voltage drop is 0.2 v

[@BBRR442]

I read it as 54 basic components and not as episode 54.. anyways cool video

[@bsounds3485]

Great job broh

[@SuperDolphin80]

Good

[@rectify2003]

I wish you would have used proper lighting and focusing

[@terrycrissman7392]

is a multimeter with milliamp modes necessary for testing most components/circuits?

[@maclenio100]

Could you pls tell me if this digital device can work as well as the analog?

[@typenn84]

I know its kinda old but Timestamps would be nice