Pure Electronics Repair. Learn Methodical Fault Finding Techniques / Methods To Fix Almost Anything
Hard Drive Failure: How to Check & What to Do: https://bit.ly/4ffBoNB
How to Recover Data from Corrupted Hard Disk for Free (2024) : https://bit.ly/4ffBoNB
LER #221 In this video I show you how to diagnose and repair just about anything, At the day it is all just electronics, yeah? Learn how to apply your knowledge of electronics in a step by step structured METHODICAL way.
I work in collaboration with:
The Electronics Channel (live streams with Carlos and Detlef)
https://www.youtube.com/@theelectronicschannel
Gran Canaria Uncovered
https://www.youtube.com/@GranCanariaUncovered (with Detlef and Julie. Not electronics related)
Det Builds Stuff – https://www.youtube.com/@DetBuildsStuff (Detlef)
Retro Upgrade – https://www.youtube.com/@RetroUpgrade (Carlos)
For All Your PCB needs: free $5 discount coupon
https://www.pcbway.com/setinvite.aspx?inviteid=561767
Equipment used in my videos. These are affiliate links, you pay the normal price and I make a small commission.
TEST METERS
ANENG AN8009 MULITIMETER
https://s.click.aliexpress.com/e/_DDGumdd
https://amzn.to/4da4Q7h
https://amzn.to/4fsjkkm
https://amzn.to/3yuf03q
https://amzn.to/4fwQOOD
https://www.banggood.com/custlink/KDDZhU2pBu
KAIWEETS HT118E MULTIMETER
https://s.click.aliexpress.com/e/_DcIhCiR
https://amzn.to/3yC0ZRe
https://amzn.to/3SHIEcy
https://www.banggood.com/custlink/m3D9EzqcQR
VC480C+ MILLIOHM METER
https://s.click.aliexpress.com/e/_Dk0hlEx
https://amzn.to/46Gg1Cm
https://amzn.to/3YwUjyn
MESR-100 ESR METER
https://amzn.to/3yxQ0Zd
https://amzn.to/3WSr73A
https://s.click.aliexpress.com/e/_DCY5FT5
XC6013L CAPACITOR METER
https://s.click.aliexpress.com/e/_DBmud5Z
https://amzn.to/4cf2lzm
https://amzn.to/4dw9cp5
TM-902C TEMPERATURE METER
https://s.click.aliexpress.com/e/_DEXr4tz
https://amzn.to/4fAz44L
https://amzn.to/4fBxD69
LCR-T4 COMPONENT ANALYZER
https://s.click.aliexpress.com/e/_DBEGAWX
https://www.banggood.com/custlink/mvDSR2qHWq
https://amzn.to/3X4rOHv
https://amzn.to/3Agcj6h
FNB58 USB ANALYZER
https://s.click.aliexpress.com/e/_DCRxyKP
https://amzn.to/3MgBFnn
https://amzn.to/4dyLU1H
https://www.banggood.com/custlink/KKGIEkkHBr
PCI POST ANALYZER
https://s.click.aliexpress.com/e/_DFl0qmB
https://amzn.to/4dd8ihw
https://amzn.to/3LTpeO7
TL460S PLUS PCI_E ANALYZER
https://s.click.aliexpress.com/e/_DDTMw1N
https://amzn.to/3WEsdi6
TOOLTOP ET120MC2 SCOPE
https://s.click.aliexpress.com/e/_DkCeBRd
https://amzn.to/4dCaz5L
https://amzn.to/4dxOYLt
FNIRSI 1014D SCOPE
https://s.click.aliexpress.com/e/_Dm6vNuJ
https://amzn.to/3AdZqK1
https://www.banggood.com/custlink/3DvShk2tkE
NPS3010W 30V 10A PSU
https://s.click.aliexpress.com/e/_Dc9s4UL
https://amzn.to/4dzl2yM
T12 STATION WITH M8 9501 HANDLE
https://s.click.aliexpress.com/e/_DesbPUr
https://amzn.to/46E73W6
M8 9501 HANDLE
https://s.click.aliexpress.com/e/_DkmbgGj
YIHUA 982 Soldering Station C210/C245
https://s.click.aliexpress.com/e/_DF88Zrz
FNIRSI HS-02 PORTABLE SOLDERING C210/C245
https://s.click.aliexpress.com/e/_DCfzAaJ
https://amzn.to/3Yv7Ma5
QUICK 861DW
https://s.click.aliexpress.com/e/_DdsilAF
https://amzn.to/3WDF4B5
https://amzn.to/4ci7rdW
PROS’KIT SS-331H
https://s.click.aliexpress.com/e/_DDSYUhd
INFIRAY P2 PRO IR CAMERA + MACRO LENS
https://s.click.aliexpress.com/e/_Dndyrj9
https://www.banggood.com/custlink/K3viRzkFzl
https://amzn.to/4coSRle
https://amzn.to/4coSV4s
TOOLTOP ET13S THERMAL CAMERA METER
https://s.click.aliexpress.com/e/_DExNv7N
ET13S MACRO LENS
https://s.click.aliexpress.com/e/_DlwnDKL
OPTICAL MICROSCOPE
https://s.click.aliexpress.com/e/_DmPmKAB
https://usa.banggood.com/custlink/GKKIEzU87t
https://amzn.to/4dzBA9G
TOMLOV TM4K AF FLEX
https://amzn.to/3LY0YKs
TOMLOV TM4K-AF Flex 4K 8" Autofocus Flex Arm HDMI Digital Microscope
TL866 II+ PROGRAMMER
https://s.click.aliexpress.com/e/_DDFPQyx
https://amzn.to/3SGKL05
CH341 PROGRAMMER
https://s.click.aliexpress.com/e/_DCkZJQx
NC-559-ASM FLUX
https://s.click.aliexpress.com/e/_DeGOWh9
DESOLDER BRAID (I use size 8045)
https://s.click.aliexpress.com/e/_DnFodlD
https://s.click.aliexpress.com/e/_Deo6T8f
HX-T100 SOLDER (0.6MM)
https://s.click.aliexpress.com/e/_DnORpAT
ESD-11 TWEEZERS
https://s.click.aliexpress.com/e/_DdlU1UX
Learn Electronics Repair is now on Discord! Come and join the fun, it’s free.
https://discord.gg/vam6YC8vwU
If you would like to support this channel
You can send donations
https://www.paypal.com/paypalme/youtubeLER
You can subscribe to Patreon
https://www.patreon.com/learnelectronicsrepair
You can click Join to become a channel member
Thank you
Richard
Can you further explain how connecting one of your leads to the top of the triac and the other lead to one of the pins can test a short circuit? Please correct my terminology as well if I made an error, I am trying to learn.
30:58 âTry the Triacâ. Thatâs gold! đč
Most of us call it "troubleshooting"…
Hallow friend I live in London I wondered if you fix controllers from my electric bike if I could send you it by post live in London I do
Let me know respect Edward
I would like to correct a language missspel: the labels in the coffee machine circuit are surprisingly written in Italian, where:
"macina" means the hash, used for coffee beans;
"porta" is the command to open the door;
"fondi" is the command for something that collects coffee residuals, called fondi, "the bottom";
"sonda flusso" is the connector for a flow sensor, maybe for water or coffee.
However, it’s amazing fixing things without even knowing what they are. It’s mastery.
I’m tired of computers laptop and anything that is mainly DC. This was great!
Porta means door in Italian, that will be checking that the coffee machine hatch to service the thing is closed.
Fondi means grounds in Italian, that will be monitoring for when the grounds container needs emptying.
This seems to be an Italian coffee machine from all the markings.
Thermo will be the heater, Pompa is pump, Machina is the grinder
nice channel man i love soldering and recapping old gear and i’m great at soldering. but i have no clue how to diagnose, so if i dont know what’s wrong i’m useless. Also i dont care about gpus i love to repair old audio gear
This was interesting and fun, thank you sir!
I’m dealing with electronics for 20+ years. These videos are shining gems to see how to think in a structured way and I can still improve.
Do you have any good advise to find out the component type which was completely burned? Majority of the time the component and wiring diagrams are not available.
the heater is shorted with ground , i got those all the time , and i just remove the ground , works like a charm .
Iâve been using Knownpcb for years, and theyâve never let me down. Excellent PCBs and fast delivery!
btb16 is lower ohm then bt139 you did not fixed
Iâd love to send you an old receiver that stopped working that i absolutely loved. Instead of tossing it, Iâve held on to it hoping that one day I could find someone to work on it.
thanks! from now on i shal refer thermal paste as pidgeon sh***
Hard Drive Failure: How to Check & What to Do: https://bit.ly/4ffBoNB
How to Recover Data from Corrupted Hard Disk for Free (2024) : https://bit.ly/4ffBoNB
Get to the point.
I was in a factory maintenance class for a multi-million dollar HD digital video router made by Thompson. The circuit boards were $50 thousand each. One of the factory engineers was there auditing the class. I asked him how they fixed returned broken boards. He said, "We don’t. "
wow đČamazingđ
i have a anritsu sitemaster the display has gone all scrambled its not the screen as ive replaced it if i send it to you do you think you could repair it i believe the schematics are not available
I thought this video was about my ex? METHODICAL FAULT FINDING!!!đ
Thank you for sharing knowledge.
Divide and conquer!
Thnk you very much
Why is there a Coffee Maker in England? I thought you blokes drink tea all day long!
How did you know (ie. what told you) that that voltage regulator was a negative voltage regulator? That feels like a it would be a significant factor when diagnosing a board. (Asking as a novice/hobbyist still learning my way around at 34 years old)
Also, what would the benefits be of using a negative voltage regulator over a positive voltage regulator? I have experience with using 1117 regulators in a few PCB designs and this is the first time I’m hearing of a negative voltage option.
What language are you speaking?
great vid, thanks for the share and the knowledge you provided.
Hi, can you probably do a video on how to check a power supply board on a guitar effect processor rack unit. AC to AC with board mount transformer. The power board connect to the main board module. Typical on an audio unit.
My unit is having bootloop issue. Wont be able to turn on normally.
A forum suspect itâs the power supply board or module doesnât supply enough power required as it used to. Thank you đđ»
at the start why are you moving the board from left to right so often đ
Hi LER and everyone. Have you got a video you can recommend please so learning will be a bit easier to understand Thankyou.
I’ve recently been repairing my infant daughters toy electronics. Extremely simple circuits. Most of the time it’s just a rusty battery contact or some piece of dust/dirt shorting something. I have next to no knowledge about electronics. But I know that electricity always flows back to the source. So ID the main circuit, secondary circuits, and so on and so forth. I get to be the hero when my child’s face lights up when her toy works again!
I’m watching this video to learn industrial electronics repair. I do industrial maintenance and we have burner control cards in a furnace from Krom Schroeder that have a 56 week lead time. I’d look so good if i could repair them even if it takes me 6 months to figure out how.
Thanks for sharing..i wonder if the subwoofer amplifier transistors SCR A16AH couldn’t find the parts can replace it with others transistors?
dude is lost!
36:46 I love this approach to any kind of diagnostics and repair! So often just repairing the obviously broken/faulty thing is only half the story and few people take the time to contemplate why or how the fault occurred in the first place!
HI L.E.R and everyone. Can you kindly recommend a video that will simplify how to fault test components, what the readings will be on every type of meter, for instance I commonly see electronics repairs people using a multimeter and sometimes a E.S.R meter, apart from voltage testing and continuity testing which I have mostly carried out, I would know how to take a reading of circuit board components but I wouldn’t know if the components are faulty by viewing the readings with either ESR or Multimeter, I hope that all makes sense, sorry if I waffled slightly to much, Thankyou for Great video.
Brilliant, thank you!
Stumbled upon this, while looking to learn to diagnos electronics. Love every bit of it. Knowledge from someone so experienced in life and in electronics repair is worth Gold. The patience and explaining every bit of the diagnosis and to end with wise words, repairing GPUs isn’t half this interesting and commercially viable. Thank you for doing this.
Pompa means pump
Great video! Only thing I heard was you mentioned that PTC’s decrease in resistance as current increases. This is actually backwards. Current will cause the thermistor to increase in heat and resistance. The increased resistance is what reduces the higher currents so it does not over stress the system.
Once again a great video though!
I really enjoy your content. I let it run while I’m hobbying or doing repairs on tools, appliances, electronics, etc.
My only complaint is that there are entirely too many commercial interruptions. And if I don’t continually keep physically interacting with my phone, your content is replaced with ads. Never once in the history of the internet have I rewarded having my train of thought derailed by doing business with the culprit. I have loved doritos since childhood and used to eat 5 13oz bags a week. I got so disgusted with their advertising strategies that I almost never eat frito lay products anymore.
My point is, to the powers that be, if you want to lose my business, show me an ad.
Thank you for this video
You have my Fluke. I found mine in the trash – three of them the factory threw out. It was the first electrical thing I ever repaired. All I had to do was clean the terminals on the display board. Still works 30 years later.
Nice video, I enjoyed the "journey" from mains input to step down transformer to bridge rectifier to other components until the final faulty Triac was found! In addition to mention that the CAUSE of failure should be checked is a huge bonus! Thanks for this video. Also one more thing to note that the component that’s on the heat-sink is also more likely to fail due to the amount of high heat it goes through so that may be worth noting but not in all cases.
đ old techie sound advice.
I have a PSU from a Midas F32 console that has gone bad and I’m trying to do this exact process to hopefully fix it. Thank you so much for this video! If any professionals out there that think they can help, I would appreciate it!
Your trying to be the real englishman .
Well the Starbucks machines cost $20K each, and most stores have two of them.