I also can't stand people who just replace all caps and give up if that does not instantly solve the problem. However, I see electrolytic caps as wear parts, limited by hours and with an expiration date, similar to a timing belt. So I first properly find the issue and do the repair, and if the device is valuable and older than 5-8 years, I then blindly replace EVERY electrolytic with high quality ones before reassembling to prevent future issues. It might be a waste of capacitors, as 95% of them are maybe still ok, but I don't want the other 5% failing shortly after and causing trouble. In my oppinion, replacing old caps is part of maintenance. I also do the same with timing belts on cars: If I buy a car and can't 100% confirm the belt has been changed recently, I just replace it, even if it means lowering the entire engine to change it. I would rather lower an engine to replace a 2 week old belt that just has no documentation to prove it is new than remove and rebuild/replace the engine because I was lied to, and the belt was actually 10 years old and snapped on the highway.
I love the diversity of electronics assessed on your channel. Frustrating to have "magic" repair, when we all want precise reason for fault, but mechanical movement and heat/cold are technically valid repairs too I suppose. I would not be able to resist using data sheet of the IC to test pins while powered on. Thank you for posting.
thanks for this teardown ، you can download the datasheet of the LM1949 and try to give it a 12v power supply and a PWM to the input voltage at Vin its a simple circuit. also u can verify with scope that the ECU send pwm signal to the controler .
Awesome video! I love to see someone testing all components looking for the faulty component and explaining everything instead of looking for the dead component before recording and then just recording the replacement of the component that caused the failure. Nice job! Keep up the good work!
Such incredible knowledge but such a strange soldering iron😢. You deserve the best there is my friend. If i was santa i would have brought you a full extra soldering station! It's a shame i am not though😅. I love your videos!
Ford IMRC bushings are around $10 each. Replace all four of them. The brand HELP sells a 4 pack of them for $8. Perhaps you can find the brand Help in Helpa? Say hi to my family there!
Once, I found a bridge rectifier made of discrete diodes, and when I tested the diodes, 3 of them were reading as diodes in both ways. I do not know how the IC was still alive.
The problem is probably in some control unit. I had similar problem with simpler door lock motor unit of a last generation Escort, I checked it - nothing wrong after which I bought a new motor unit, and the problem remained - it appeared the control unit did not work out the signal for the locked position, given by simple sliding contacts.
WD40 or other similarly thin oils are more for cleaning than lubricating, pretty much all of it will just drip off. For gears like these that have no oil pump to bring the oil back where it is needed, you need something somewhat tacky like lithium grease that will stay on the gears without the viscosity getting in the way too much.
Ďakujem za toto videjko. Páči sa mi, ako dokážeš pekne využiť podomácky vyrobené vybavenie v kombinácií s továrensky vyrobenými prístrojmi (z ktorých si si niektoré sám pekne opravil) pri testoch opravovaných zariadení.
Very Nice video as always i has a good listen while rewinding the primary of my vacuum tube tesla coil. (posted a video of my vttc on my channel if you are interested). Did it end up working?
small voltage variation in the emitter circuit provokes higher voltage variation in the collector circuit- hence you get voltage gain despite no current gain
True but he knows, you have to constantly be thinking how can this test be wrong, he covers this by explaining the diode and resistor in the Darlington that kills the hfe and the cap across the motor that'll look short, with this method it's all about getting lucky, when you don't have schematics to test properly meaning powered up, it's a very common youtube method and only works for absolute dead parts not partially failing or intermittent or incorrect dc bias ect
YUK. Crappy Ford electronics. Drive the motor to the end stop then keep wasting current and heating the motor by holding it against the return spring. What's wrong with a bridge circuit so you can drive the motor both directions? I guess so if the system fails, the throttle goes to minimum.
so refreshing to see real repair and analysis instead of videos that just blindly replace every electrolytic cap.
This is what you do when there are no electrolytic capacitors in the circuit.
@@LeonidAndronov 🤣
I also can't stand people who just replace all caps and give up if that does not instantly solve the problem. However, I see electrolytic caps as wear parts, limited by hours and with an expiration date, similar to a timing belt. So I first properly find the issue and do the repair, and if the device is valuable and older than 5-8 years, I then blindly replace EVERY electrolytic with high quality ones before reassembling to prevent future issues. It might be a waste of capacitors, as 95% of them are maybe still ok, but I don't want the other 5% failing shortly after and causing trouble. In my oppinion, replacing old caps is part of maintenance. I also do the same with timing belts on cars: If I buy a car and can't 100% confirm the belt has been changed recently, I just replace it, even if it means lowering the entire engine to change it. I would rather lower an engine to replace a 2 week old belt that just has no documentation to prove it is new than remove and rebuild/replace the engine because I was lied to, and the belt was actually 10 years old and snapped on the highway.
No schematics? Where is the cat complaining? Or is the cat in vacation?!?! Just kidding. 😂 Nice video! 🥰
I had to go thru a 6h plane ride and usually im not a fan. I downloaded 6h worth of random content from you and i can say i had a really good time.
I love the diversity of electronics assessed on your channel. Frustrating to have "magic" repair, when we all want precise reason for fault, but mechanical movement and heat/cold are technically valid repairs too I suppose. I would not be able to resist using data sheet of the IC to test pins while powered on. Thank you for posting.
thanks for this teardown ، you can download the datasheet of the LM1949 and try to give it a 12v power supply and a PWM to the input voltage at Vin its a simple circuit. also u can verify with scope that the ECU send pwm signal to the controler .
how come LM1949 is a fuel injector controller? and used here to drive a motor?
@@glmnet they said in the datashet it can control Air and Fluid Valves. It can control solonoid or motor.
Awesome video! I love to see someone testing all components looking for the faulty component and explaining everything instead of looking for the dead component before recording and then just recording the replacement of the component that caused the failure. Nice job! Keep up the good work!
Such incredible knowledge but such a strange soldering iron😢. You deserve the best there is my friend. If i was santa i would have brought you a full extra soldering station! It's a shame i am not though😅. I love your videos!
I don't own one but I think there are advantages to a soldering gun. Faster to heat. Always ready. If you need more heater just hold the trigger.
I'm pretty sure he have a decent soldering iron lying around! But for this purpose, resoldering, its more than good enough👍
Certainly from the 18th century but he loves it 😮💨😃
Ford IMRC bushings are around $10 each. Replace all four of them. The brand HELP sells a 4 pack of them for $8. Perhaps you can find the brand Help in Helpa? Say hi to my family there!
Fascinating i love all your testing equipment.
I found a diode in a plasma tv that was reading as a diode both ways. So i always check them both ways round now
Once, I found a bridge rectifier made of discrete diodes, and when I tested the diodes, 3 of them were reading as diodes in both ways. I do not know how the IC was still alive.
Just thought id add that this diode was reading both ways out of circuit, and was the cause of the tv not turning on
So did it work?
Day 3 of asking to build a drsstc or a vttc, pls👍
Love your videos
We wait for part 2 dear DGW ☕🏃♂☺
If it's still doesn't work, maybe a critter has chewed a wire in the car. As always thumbs up 😎
Did it work on the car?
The problem is probably in some control unit. I had similar problem with simpler door lock motor unit of a last generation Escort, I checked it - nothing wrong after which I bought a new motor unit, and the problem remained - it appeared the control unit did not work out the signal for the locked position, given by simple sliding contacts.
Great video, love your accent. From USA.
He learned that in Sydney Australia.
Hello, what makes a 5v usb charger voltage to drop even without a load?
Great video...👍👍
But, was the fault the non existing fault ???.
Question over question 🤔🤔🤔🤔
I am a very big fan of you!
@DiodeGoneWild Did it work in the car?
Dodgy connector somewhere? Cool attempt regardless! 😁👍
WD40 or other similarly thin oils are more for cleaning than lubricating, pretty much all of it will just drip off. For gears like these that have no oil pump to bring the oil back where it is needed, you need something somewhat tacky like lithium grease that will stay on the gears without the viscosity getting in the way too much.
A myth, perfect lubricant for this scenario. See the web side of WD for details of the light lubrication properties..and the myth about non lube!
I used a PTFE lubricant, not WD40.
So.. does it work again?
Day 1 of asking to build a drsstc or a vttc, pls👍
Love your videos
He did a shit load of Tesla coil stuff years ago on his channel
IMRC = Intake Manifold Runner Controller
It's a runner
8:34 "Everything smoothing feely" To mě dostalo :D
Řekl bych, že spíš "Everything's moving freely" ;-)
Nice work.
thanks again for your wisdom
It would be interesting to disassemble and repair an Engine Control Unit (ECU) or also called Engine Control Module (ECM).
Keep up the good work!
Ďakujem za toto videjko. Páči sa mi, ako dokážeš pekne využiť podomácky vyrobené vybavenie v kombinácií s továrensky vyrobenými prístrojmi (z ktorých si si niektoré sám pekne opravil) pri testoch opravovaných zariadení.
Not sure why you desoldered the connector. Looks like it would slide out the case? Great video though 😊
It's quite glued in.
Ah OK 😎
Very Nice video as always i has a good listen while rewinding the primary of my vacuum tube tesla coil.
(posted a video of my vttc on my channel if you are interested).
Did it end up working?
Next video explain a transistor in common base mode. This is a common usage for radio applications, but it's the most confusing.
small voltage variation in the emitter circuit provokes higher voltage variation in the collector circuit- hence you get voltage gain despite no current gain
and, it worked or not in the car
Kde byla závada? Z toho překladu nejsem moudrej.
Nice vidéo khalid du Maroc Casablanca
Often times it's the bushings that fail.
Those diodes are as old as I am
I think that testing components into the board can give you wrong results remove it from the board and test it it's a good idea
True but he knows, you have to constantly be thinking how can this test be wrong, he covers this by explaining the diode and resistor in the Darlington that kills the hfe and the cap across the motor that'll look short, with this method it's all about getting lucky, when you don't have schematics to test properly meaning powered up, it's a very common youtube method and only works for absolute dead parts not partially failing or intermittent or incorrect dc bias ect
@@darrenmurphy6251*very common method full stop.
Your right but if anyone on UA-cam knows which components should/shouldn't be tested in circuit.....it's this dude.
You should have asked your cat in the first place!
Asalamaleiku brother from Kosoves.
YUK. Crappy Ford electronics. Drive the motor to the end stop then keep wasting current and heating the motor by holding it against the return spring. What's wrong with a bridge circuit so you can drive the motor both directions? I guess so if the system fails, the throttle goes to minimum.
More overengineered car crap. "Built to last"
Subtitles please I'm blind :(
Just download the braille extension. My subtitles sort of work, while eevblog talks about bird watching
Lololol 😂 nice. Like yr stuff btw 😊@@LawpickingLocksmith
Day 4 of asking to build a drsstc or a vttc, pls👍
Love your videos
Day 2 of asking to build a drsstc or a vttc, pls👍
Love your videos