How to Read Schematics

[@kenmichaels1842]

Some people take knowledge and build themselves a wall to separate themselves from others…you, sir, take knowledge and lay that wall flat and make a table so everyone can sit at it. Thank you for that.

[@USA-GreedyMenOfNoIntegrity]

Especially in our greedy, corrupt, lying, cheating, hypocritical nation of USA.

[@RajVeer87156]

Well said.... Sir is a living electronics encyclopedia ❤

[@ElTigreFIME]

One of the nicest way to compliment someone that has earned the highest respect.

[@barrylavanway-cutler6129]

Top notch education we get from you and I for one am entirely grateful.

[@joannebattye263]

Got an OND in electronics in 1986 and stopped using it in 88. Just got back into it, and you are certainly helping the steep learning curve. Excellent and thank you.

[@shaunozs1ra92]

Thanks so much for this video. I’ve been looking for a lesson delivered in a simple easy to understand manner on the topic for ever. I’m definitely going to view the follow ups.

[@leonlamot3061]

Great videos! You deserve a much wider audience.

[@darynsax]

I'm sitting here in my taxi on the rank and enjoying your tutorial inbetween jobs. Very interesting thanks 👍

[@666gelinas1]

Great video! I am in my 3rd Year of Electrical and this is a plus for understanding schematics symbols in a drawing. Keep up the good work with the videos!

[@acestudioscouk-Ace-G0ACE]

You have done such a good job here, I just want to say thank-you. I've taught and know the effort and time which goes into these things, so thanks very much indeed. 👍👍👍👍👍

[@christopherjackson2157]

Some schematics are so incredibly abstract. Learning to read them isn't easy. And even after a long time doing it you still sometimes run into ones that use conventions ur not entirely familiar with. Especially in specialised subfields.

[@darkdepth1991]

Hi Richard, I dedicated myself following this series :) Thanks in advance.

[@marauderofdeath6401]

Always interesting to see all the different symbols they use for different components. Very useful knowledge to know!

[@snailevangelist]

your videos are just simply amazing, keep up the great work!

[@gordthor5351]

snailvangelist Yeah, Richard is the best on KZbin when it comes to teaching electronics.

[@MarioRodriguez-gr8wc]

Excellent video thank you. Just got my entry level job as an electrical engineer, and I am using your video as a review.

[@corpliner1506]

hows the job so far?

[@MarioRodriguez-gr8wc]

@@corpliner1506 it’s really good thank you very much. I’m working for an aerospace company. Luckily I have a good team with great mentors. I’m learning a lot from them.

[@topofhelist6592]

Taking notes thinking about making flash cards like I used to back in the day to memorize them I like how the principal Carrie’s over between symbols like variable , tapped, trimmed etc…

[@leonmarienga3293]

Good work

[@justicelowman7493]

Thank you very much for these videos, they are very helpful!

[@garethedwards3379]

Been hoping you would do something on schematics for a while now and I think it’s definitely best that it’s broken up into 2 or 3 videos!

[@fusion-music]

Great way of explaining things. Nice refresher. Talking of audio ground took me off at a tangent. Another subject than learning to read circuits- that of "ground loops" caused in audio where different audio equipment end up with a potential difference across the earth. There is a safe way to deal with this and a potentially dangerous way to deal with it. That might be an interesting subject, perhaps in the future. Thanks again.

[@fabio.1]

Excellent video, thanks a lot

[@alek002]

Thx

[@reg2590]

Richard I watch all your videos an enjoy them immensely; thank you. A slight slip though - at 34:34 you put the positive side of the battery symbol at the wrong end. Whoops, late to the show but now I have read all the comments, I see that it has already been spotted. (back to my cell then).

[@castlecodersltd]

Excellent start. Thanks for sharing, I'm looking forward to watching the other 2 parts that you've published ☺

[@electronicsrepairbasics_erb]

Amazing refresh 👍

[@wildcat189]

Brilliant. Thanks for this!

[@robtitheridge9708]

being able to read and understand a schematic is proberly the most impotant thing you can learn if you want to fix anything electronic .this was drumed into me very early on my road to repairing almost anything with a plug or batteriesi was also taught that if a circuit looked to complex to break it down into small pieces that i could understand then i could join the bits together.

[@LearnElectronicsRepair]

hey, are you pre-empting part 3? LOL

[@ricksampson6780]

Excellent tutorial!

[@jameskidd7906]

The very important and obscure part in repair domain is schematic thank u sir for this very important explication

[@terencebarfield5864]

Yes Terence is extremely interested in schematics and how these do work schematics

[@TheMausebert]

I needed this ! Thanks !

[@saydmarschany8321]

Really enjoyed this session. Made me understand many things I could not figure out on my own, Diodes fall under what category? Or are they explained in the following sessions?

[@paulhyland4653]

Excellent video thanks

[@matthewchrist9082]

I just started micro soldering. The soldering part I’ve gotten pretty good at, but now i need to learn to diagnose which seems daunting right now. I am trying to figure out how to test the connections on an iPad charging port. I have the tools and the program but can’t figure out which connections i need to test and then where in the schematic it would tell me what numbers a good connection should have. Ugh. Thanks for the video!!! Very helpful start

[@davet3804]

I do wish that you had posted this 20 years ago 😂 The ground Symbols have subtly different meanings ie chassis and true earth ground..I’m certain that you know this Excellent work ..top marks from me.

[@gregbennett2437]

Thank you!!

[@OldmanSerious]

The convention to use a dot on wires that cross if they are connected, and no dot if they don't connect bit me in the past trying to figure out a circuit. Sometimes you just can't avoid crossing over the lines. Also, for nodes you just mentioned power and ground, wouldn't it also include mysterious designations in the middle of schematics to "A" in a little circle (and other methods) that are just to simplify the diagram? I've seen some schematics that just have a line to power and "4" written next to it, indicating that pin 4 of the IC being used is connected to power, and then again an 8 with a line to ground meaning pin 8 is ground. The other pins are shown in the circuit using an opamp symbol, but the power and ground are just hidden in the drawing. Guitar pedal building got me back into doing electronics after 40ish years, I really wish I'd kept doing it since there's just so much to learn.

[@LearnElectronicsRepair]

A lot of that stuff is in part 3 but it will all get covered. It's too much for one video. Part 2 will be published tomorrow

[@dainiuslukosevicius]

Very good tutorial, thank you!

[@lawrencelawrence109]

thanks for your time and information . so much to love about this video. I assume your wife in the background, very sweet!

[@edwardwalker8745]

Thanks this is most informative.?

[@francismannion7075]

Thank you it was very interesting.

[@Lightrunner.]

Hi Richard, Super Video,,❤👍👍 41:18 you have forgotten the down arrow.

[@LearnElectronicsRepair]

Yeah those nodes are not compatible on the same rail 😊

[@Lightrunner.]

@@LearnElectronicsRepair sorry for my bad english(its a long time since i learned english) forget or forgotten 🤔🤔 what was right ?

[@markanderson2904]

​​@@Lightrunner. "you have forgotten" or "you forgot". "Forget" is present tense.

[@wherami]

Super important

[@Beekaert]

Hello Richard. I've been repairing a lot of microwave ovens lately. I am looking for a DIY device to measure the HV diode with, for example, 2 LEDs, a red and green to indicate the status of the diode and whether it is open or shorted. Of course, the HV diode is first removed from the microwave oven to do the measurement. Testing with a normal DVM is not possible because the internal power supply of a DVM is insufficient to measure this diode. I am currently dealing with a series connection of a 9V battery with the DVM, but this is not very professional and also hassle with battery and DVM. Can you therefore possibly provide me with a diagram or make a small video on You Tube for a handy test device that can possibly work on the mains voltage of 230VAC (of course with an internal transformer to reduce the voltage) I follow your videos regularly and they are very educational. Please keep up the good work for this. Have already created a small database of your most important videos to be able to consult them in the future if necessary. My heartfelt thanks in advance and many greetings from the rainy country of Belgium. Andy.

[@LearnElectronicsRepair]

Get an LED backlight tester, that will do the job for you and give you a voltage reading also in a handy mains powered tester. At this price it is hardly worth making something yourself www.aliexpress.com/item/1005005290226074.html?af=ler2022

[@LearnElectronicsRepair]

Or look at this one (I have not tried this model myself) it has both voltage and current meters www.aliexpress.com/item/1005005461165027.html?af=ler2022

[@Beekaert]

@@LearnElectronicsRepair Thanks Richard. I buy this instrument price is no probleme. GRTS Andy

[@mohamedantri9433]

Think about all your videos sir....can you explain the pawer supply of treadmill....❤❤❤❤❤❤❤

[@RixtronixLAB]

Nice video shot, thank you for sharing it, keep it up :)

[@Dutch_off_grid_homesteading]

Heya, stil learned 2 or 3 things so that's a good thing can't wait for part 2 and 3

[@LearnElectronicsRepair]

Part 2 tomorrow

[@davestake44]

Awesome thanks for the videos

[@Amitshendage]

thank you for this video

[@HB-bf6dl]

Surely the short line on a battery symbol i s negative.

[@LearnElectronicsRepair]

Better be careful how I plug them in then

[@TheEmbeddedHobbyist]

I'm positive the short line is the negative.

[@LearnElectronicsRepair]

@@TheEmbeddedHobbyist hehehe 😅 that's just my sense of humour

[@tomorrowsnews3915]

Having trouble finding part 2 of this

[@TheEmbeddedHobbyist]

You might want to point your viewers towards IEC 60617 as a good reference for schematic diagram symbols.

[@LearnElectronicsRepair]

I can mention that in part 3. Part 2 is already recorded and will be published tomorrow

[@TheEmbeddedHobbyist]

@@LearnElectronicsRepair When i started resistors were always zigzag's and were drawn by hand with steel templates. they changed to rectangles when we started to use cad and plotters, a rectangle was a lot easer for the plotter's.

[@andymouse]

@@TheEmbeddedHobbyist Is that about the time when the symbol for ' the wheel ' went from square to round please ? Lol ! Squeak !

[@TheEmbeddedHobbyist]

@@andymouse is this a case of the kettle calling the pot black as they used to say.

[@andymouse]

@@TheEmbeddedHobbyist Lol ! absolutely !

[@bobdevine4730]

At 34:34 he drew the battery symbol but labeled the wrong side for the positive terminal.

[@rishanranatunga4851]

Little correction - the long line of the Battery symbole represented the Possitive terminal.

[@milhousesmom]

when taking measurements which ground would you use?

[@ibrahimmohammed227]

Please , could you help me find the problem with my laptop . It is hp pavilion g6 motherboard R 13 In the beginning, there was power but there was no data . Now there is no power at all . I mean the indicator light of the power source is off Any suggestions , please

[@jimnicosia5934]

I used to have 600 Sam,s.

[@Hff19927]

Daunting part of schematics is not understanding the symbol meaning

[@photosofpickles]

hang on.. where is it 27°C and sunny? 😂

[@gbondbasic]

Brill

[@johnrogers2826]

Thanks!