You changed my life beyond what you can imagine at this time...... Watching your videos have revolutionized my entire repair business..... Thank you sorin
The ability to repair something without replacing it is the mark of a true professional. I'm glad you share your knowledge and thank you. Until 3 years ago i was afraid to open a laptop change the battery.
Even the manufacturer can't fix that kinda complicated issue other than using your method (and by method i mean: dodgy) and i LOVE methods like that, so THANK YOU SO MUCH MR. SORIN
Sorin, I absolutely love you videos. Your are not only a mastermind when it comes to repairs, but you comedic nature is fantastic. So entertaining and educational at the same time. Paul, USA
Hi Sorin, you got confused this time 60mil is actually size (width) of power track on board and not 60mA which is current, its telling the board editor to place 1.5mm track for this net (60mil=1.5mm).
Hi Sorin i am also huge follower from Az, US. I want you to know that even you say you use "dodgy", the difference between how you do it is the full understanding of why you are doing it most especially in the realm of the electronics . And for that I regard you as an expert and a professional. Even more professional than the OEM themselves. I wish you good health, and a long, and happy life.
His background, his entire life in the Eastern Europe made him the man he is today, a bit unconventional in the electronic repair world but so entertaining
Sorin you are giving Romanian people a good name and image to what some have done especially in the UK, so great work! I was born in Romania in Petrosani but lived in Brasov 71 years ago. Love your work and I’ve been watching your videos since you were working in the computer shop about 3 year. Keep up the good work
huge fan better than watching a thriller movie can't believe you managed to get this one working! thank you for sharing your knowledge you have no idea how much I have learned from your videos!
YAY!! 1h28 long video!!! "The best I can do is a dodgy repair!" That's when I stopped the video to press the like button - which I actually forgot to do before even start watching the video!! Thanks, Sorin!
Fascinating fault(s). Overcurrent and floating voltage. Recognizing what you are seeing is sometimes very simple but sometimes very difficult. Great patience in staying with it, especially as time is money. In a way it would be good to get a lot of these faults now to return the investment, but I suspect the floating voltage EC chip damage was probably caused by the previous repair attempt. Or the overcurrent fault was caused by the previous repair attempt. So you would normally only see one of those faults.
Hai Sorin, you asked, 'so what would you do in my case'. I have very sharp needle probes for my multimeter, so I can pierce through the wires with the connector attached (very cheap on Ali). That won’t work if the wires are shielded though...
Hi Sorin. That's a proper hard job. Your determination to get to the answer is just like Sherlock Holmes investigating a murder 😊. You know what they say 'everyday is a learning day'. Love your videos, keep them coming 👍
Yeah he onlys repairs shorts and fix connectors. I stopped watching his channel for that reason. Nothing new coming up. In the other hand Sorin's videos has something new to learn, new adventures, new dodgy repairs 😂😂
So I am watching and following wire as "bridged" replacement to voltage. But the floating part left me confused? /was the pin connection as no contact with *track on board? And then, a deep and full realization came to me. I should not care so much as exactly how but just to understand this was two problems and repaired. One wire as to each issue, from a master of repair to components as a half lifetime of understanding. Thanks Soren. I get to watch from Washington state, US. More and more such faults are placed to automobile, appliance, laptop, cheap tv. Nice laptop. Cheap car module and more and more. M.
I had a similar problem with such a Dell and found a broken capacitor in the circuit, near the display connector. I found it by using the oscilloscope. But yes, not all faults are the same...
I would have close look at lid switch; intermittent interrupt, including thorough look at Lvds harness for any damaged power circuit failing open under load.
it is possible that he screen may not be faulty but the injected voltage(7.2) by your power supply was also be consumed by the chip enable switch on the board leading to high current consumption.
Never had a doubt, money riding on you Sorin the whole time!!! Whoo!!! Booya! Stupid dodgy motherboard Sorin just laid you in the dirt! This was just friggin epic! Hope you got paid VERY WELL! 🎉
I do not think the display connector was replaced, the big pads around it are not flooded with solder, it looks factory. The small pins may have been dragged over with the iron, believing some of them are not connected.
Also Sorin should really have a spare test screen even partially cracked if he can buy one. This would also quickly eliminate issues. Too often i see techs not thinking out of the box. Not investing in essential spares. No it doesnt need to cost much at all.
Once i took a laptop with same problem, it was the dim key that was turning off the ¨back light" the oleds, just increased and the scrren turned the led on. For some reason when the laptop was turned off and on the dim decreased to zero, maybe a bios or ic problem.
Would it easier to locate a screen cable and tell the customer to wait, they are available. I could understand if they weren't then a repair attempt. Are the leds in the screen actually have a issue. Current protect etc...
Nice job. Do you think it's just a screen fault though? I've had a couple of those XPS13's with the same problem, replacing the screen fixed it. Expensive I agree though.
Could it be the same fault still? I mean if the EC chip is sending 50% PWM and the current sensor is reading 100% brightness then it cuts power to the backlight. Not sure why you say it should consume 60mA, the schematic said mil, could be related to something else, because at 60mA the power of the backlight at 7V is 0.42W which is absurdly low, the power consumption should be around 1-3W for this 4K UHD screen. 0.45A x 7V is 3.15W which could be right for full brightness
Yes it was 60 mil. I don't know either where he took 60 mA. If you could compare with same working laptop we could confirm. I'm PCB designer and mils probably mean PCB track width. Or something related with width. Wires, tracks. So in the end it would be only dead EC chip?(PWM part dead).
Being both very good at your job and then wanting to solve the problem is both good and bad. The one is unable to sleep, wondering how to solve the problem. I don't know what you call this, but sometimes its like sickness lol.
Always a quick process of elimination .... disconnect the cable you were working on and see if the screen still shows a picture without its backlight when you turn the laptop on.
you mean to say there are professionals other than Sorin in the repair market ??!? i think all of those would have changed the display ... it was a wise descision by the customer 🙂 probably because he is a viewer too. this was the only "actual" professional way to have had this fault repaired 1hr 30 mins ... was better than any movie i could have watched. 5th sept ... was teachers' day in India ... and my salutions to one of my teachers : Sorin 🙏
Very good stuff!!! Are you at liberty to provide the source for the schematic? That is the one thing that can limit troubleshooting...without a schematic, it can be difficult!
Why did Sorin not just use his thermal camera at the part where he discovered extra current was being used. It would have revealed the culprit or quicker still at the very beginning. In fact using the thermal camera at the outset of every job would narrow things down so much quicker.
@@dombarton2483 lol, you are clearly not in this field to understand enough. That laptop is on and lot of ic and mosfet will definitely be hot by default so how do you narrow which is drawing the excess current 👀
Current is drawn by the display itself so discovering that it gets hot it doesn't help because you most likely can't open the screen without breaking it. Better not to know and now it has a free heater to warm hands...bargain I would say
salut ! dupa cum am vazut sunt cateva leduri arse si cum ledurile sunt diode ori se intrerup ori se pun in scurt in cazul asta sunt puse in scurt deoarece in momentul cand ai pornit invertorul celelelate au pornit dar cu leduri puse in scurt creste amperajul de lucru si invertorul se va incalzi si la o anumita temperatura intra in protectie de aceia reporneste cand inchizi si redeschizi panelul . problema e de la leduri arse de aceia amperajul mare la alimentarea invertorului practic trebuie schimbata banda de leduri ceea ce e foarte greu in acest caz deci ramane sa schimbi displayul
T-Con = English abbreviation of Timing Controller. It is known by that generic name. For models from 2015 and up to the present: Integrated T-Con, that is, connected to the screen directly. Unfortunately, since it is attached to the screen by brown colored FFC (Flexible Flat Cable) called COF (Chip On Film), it is best to replace the entire display panel.
So, in the end, its a faulty inverter that began taking too much backlight power and shutting down the backlight. Faulty inverter. For these very thin laptop screens that are glued together, replacing the inverter is almost equal in value to replacing the whole lid assembly. This is definitely a short term fix. And you already checked the bottom of the screen getting hot .... which I would have suggested to do.
some pizzas are easy to come by, but some are hard. Just be yourself Sorin.. the dodgy way😅 is faster than looking at a 1½hour schemas which is rather boring because i cant see it anyway lol
So, by having it delivering that higher current, which the laptop has not being designed to, isn't it possible that the power supply of that B+ rail will die sooner than expected? Something that was supposed to have 0.06A now is supplying 0.43A. Power supplies are overdesigned but with that order of magnitude?
Reading comments I believe Sorin might have been wrong about that and someone also did the math. Possibly that chip was faulty or some signals from EC chip
proper repair would be new screen, new ribbon cable, but yeah, it would be costly and the repair wouldn't be interesting like this good job with those two proper calibrated wire 😂
1hour and half!?! 😱
I'll cancel the movie-night, tonight it's Sorin show time! Can't wait 🎉
he said over 2hrs without cutting the recording
😂very funny
You changed my life beyond what you can imagine at this time...... Watching your videos have revolutionized my entire repair business..... Thank you sorin
The ability to repair something without replacing it is the mark of a true professional. I'm glad you share your knowledge and thank you.
Until 3 years ago i was afraid to open a laptop change the battery.
Even the manufacturer can't fix that kinda complicated issue other than using your method (and by method i mean: dodgy) and i LOVE methods like that, so THANK YOU SO MUCH MR. SORIN
Of course they can...replacing the laptop. 😂😂
Sorin, I absolutely love you videos. Your are not only a mastermind when it comes to repairs, but you comedic nature is fantastic. So entertaining and educational at the same time. Paul, USA
That's insane 😳!
I've fixed 2 flat screen TV thanks to you!
Thank you for sharing your knowledge 🙏.
Hi Sorin, you got confused this time 60mil is actually size (width) of power track on board and not 60mA which is current, its telling the board editor to place 1.5mm track for this net (60mil=1.5mm).
Hi Sorin i am also huge follower from Az, US. I want you to know that even you say you use "dodgy", the difference between how you do it is the full understanding of why you are doing it most especially in the realm of the electronics . And for that I regard you as an expert and a professional. Even more professional than the OEM themselves. I wish you good health, and a long, and happy life.
His background, his entire life in the Eastern Europe made him the man he is today, a bit unconventional in the electronic repair world but so entertaining
Sorin you are giving Romanian people a good name and image to what some have done especially in the UK, so great work! I was born in Romania in Petrosani but lived in Brasov 71 years ago. Love your work and I’ve been watching your videos since you were working in the computer shop about 3 year. Keep up the good work
Great lesson in Patience & persistence. Not sure I would have stayed the course on a repair like this. Great job !!🍰🙂
Proper going down the rabbit hole. God level patience and perseverance. Well done
Sorin is great, he takes us through his journey and doesn't set it up as if he instantly solved the mystery as many do.
This was some next level/ think outside of the box repair. Hats off for figuring it out. Multumesc.
I like your dogy repaires! There so many creativity and courage! Thank you
Huh, what a journey!!! This was greater enjoyment than a great movie! Thanks a lot.
huge fan better than watching a thriller movie can't believe you managed to get this one working! thank you for sharing your knowledge you have no idea how much I have learned from your videos!
YAY!! 1h28 long video!!!
"The best I can do is a dodgy repair!"
That's when I stopped the video to press the like button - which I actually forgot to do before even start watching the video!! Thanks, Sorin!
professional job, Sir. I love your method and personality. thank you from Iran❤
never give up , I love this man.
1:15 no sir, you are professional and your job is a professional job
Change channel name to "Bodgy Man Sorin" BMS
aw yesssss! I have found a great space, Learning from you Sir. Thanks so much for your broadcasts.
Electronics Repair School, great content keep up the good content
You said once "Electronics repair lesson - Keep Going No Matter What" Insane and proper educational video
With a PWM i prefer use the oscilloscope.. But i love your work.. And your laugh is priceless.. 😂
We all bag him to use the oscilloscope more :) More oscilloscope videos!
Lesson learnt...
You can never guarantee a definite fault. It's beyond dodgy, this is a real Pro work...No Pressure!!
Fantastic job Sorin! Finally a nice long video of Dodgy repair ❤
Fascinating fault(s). Overcurrent and floating voltage. Recognizing what you are seeing is sometimes very simple but sometimes very difficult. Great patience in staying with it, especially as time is money. In a way it would be good to get a lot of these faults now to return the investment, but I suspect the floating voltage EC chip damage was probably caused by the previous repair attempt. Or the overcurrent fault was caused by the previous repair attempt. So you would normally only see one of those faults.
Sorin, I always solder a wire to the solder connection on the board so I can check the voltage/signal.
This job turned from easy dodgy job to extremely hard dodgy job real quick .... great job 👏
Re name this one Sorin fries his noodle.. outstanding! I love these mysteries who would have ever though.. well done master!
better than any Movie ! A thriller
This is like a threatening Netflix movie with a popcorn 🍿.
My wife also watched it
Always tricky with multiple faults. I feel like in work I say “why can’t it just be one thing?” a lot 😂
Great work.
Cand esti bun.... esti bun. Nu stiu cati tehnicieni ar fi acordat atata atenție.
Hi, modern Dell laptops have a lcd Built In Self Test. From power off. Press and hold D and ON to launch the lcd bist
Hai Sorin, you asked, 'so what would you do in my case'.
I have very sharp needle probes for my multimeter, so I can pierce through the wires with the connector attached (very cheap on Ali). That won’t work if the wires are shielded though...
Good job mate 👏
Nice video Sirin.
He is a professional ❤
Hi Sorin. That's a proper hard job. Your determination to get to the answer is just like Sherlock Holmes investigating a murder 😊. You know what they say 'everyday is a learning day'. Love your videos, keep them coming 👍
You are taken for a ride on Sorin's videos. On Northridge's videos you get short, heat spot, remove short, done.
Yeah he onlys repairs shorts and fix connectors. I stopped watching his channel for that reason. Nothing new coming up. In the other hand Sorin's videos has something new to learn, new adventures, new dodgy repairs 😂😂
@PedroFNMartins if you have stopped watching his videos then why are you still here??? Geez.
@@ninjasan1 I don't think you understanded what I said. I stopped watching Northridge videos not Sorin's
brilliant repair
So I am watching and following wire as "bridged" replacement to voltage. But the floating part left me confused? /was the pin connection as no contact with *track on board? And then, a deep and full realization came to me. I should not care so much as exactly how but just to understand this was two problems and repaired. One wire as to each issue, from a master of repair to components as a half lifetime of understanding.
Thanks Soren. I get to watch from Washington state, US. More and more such faults are placed to automobile, appliance, laptop, cheap tv. Nice laptop. Cheap car module and more and more. M.
Piękna robota Sorin!!!!
Sorin at his best!
Sorin, PURE GENIUS 👍
You are great man
i was thinking about soldering some wires to the connector to check with the connector attached in the beginning.
Yes, but only proper calibrated wires.
Engineer: "Ok, I can't solve this problem, I'm gonna stop thinking about it.",
Engineer-mind: "No you won't.".
congratulation you've Cracked their insane technology 😅😅😅
If Sorin was a doctor not a single person would have been dead. 😂
He would've been perfect doctor on the battlefield, a proper calibrated string and a nidle to fix everyone 😂
Sei sempre il migliore.
Epic episode!!!
I had a similar problem with such a Dell and found a broken capacitor in the circuit, near the display connector. I found it by using the oscilloscope. But yes, not all faults are the same...
Time well spent watching.
I would have close look at lid switch; intermittent interrupt, including thorough look at Lvds harness for any damaged power circuit failing open under load.
Sorin using schematics! That’s professional!😅
There are 3 way to made a repair:
1. The correct way
2. The wrong way
3. The best way: the Sorin's dodgy way
Thanks Sorin 😂
detective sorin in movie 😀 . i like happy end
it is possible that he screen may not be faulty but the injected voltage(7.2) by your power supply was also be consumed by the chip enable switch on the board leading to high current consumption.
can be due to a partially shorted chip but still was impressive job.
Never had a doubt, money riding on you Sorin the whole time!!! Whoo!!! Booya! Stupid dodgy motherboard Sorin just laid you in the dirt! This was just friggin epic! Hope you got paid VERY WELL! 🎉
I do not think the display connector was replaced, the big pads around it are not flooded with solder, it looks factory. The small pins may have been dragged over with the iron, believing some of them are not connected.
Very Nice! 😎
way better than netflix
Impressive!
It wasnt a steady 3.3v because it was a pwm voltage(pulse width modulation) so pulsed dc. And would alter in voltage at a high frequency
17:30 some fancy words in the drawing's information table XD
@50:50 never gets old LOL :)
Also Sorin should really have a spare test screen even partially cracked if he can buy one. This would also quickly eliminate issues. Too often i see techs not thinking out of the box. Not investing in essential spares. No it doesnt need to cost much at all.
lol I'm not going to take out that touch screen display, to the risk that screen can break or something
Once i took a laptop with same problem, it was the dim key that was turning off the ¨back light" the oleds, just increased and the scrren turned the led on. For some reason when the laptop was turned off and on the dim decreased to zero, maybe a bios or ic problem.
professional
It is worth mentioning that the XPS 13 9370 was sold with a choice of OLED or LCD display.
Would it easier to locate a screen cable and tell the customer to wait, they are available. I could understand if they weren't then a repair attempt.
Are the leds in the screen actually have a issue. Current protect etc...
Nice job. Do you think it's just a screen fault though? I've had a couple of those XPS13's with the same problem, replacing the screen fixed it. Expensive I agree though.
Could it be the same fault still? I mean if the EC chip is sending 50% PWM and the current sensor is reading 100% brightness then it cuts power to the backlight.
Not sure why you say it should consume 60mA, the schematic said mil, could be related to something else, because at 60mA the power of the backlight at 7V is 0.42W which is absurdly low, the power consumption should be around 1-3W for this 4K UHD screen. 0.45A x 7V is 3.15W which could be right for full brightness
Yes it was 60 mil. I don't know either where he took 60 mA. If you could compare with same working laptop we could confirm. I'm PCB designer and mils probably mean PCB track width. Or something related with width. Wires, tracks. So in the end it would be only dead EC chip?(PWM part dead).
Being both very good at your job and then wanting to solve the problem is both good and bad. The one is unable to sleep, wondering how to solve the problem. I don't know what you call this, but sometimes its like sickness lol.
I have to study this repair 😂
Only you Sorin!I'm very sad cause you are so far from my country!😢
Always a quick process of elimination .... disconnect the cable you were working on and see if the screen still shows a picture
without its backlight when you turn the laptop on.
The guy means he WANTS to send it to be professionally repaired... but can't find anyone so he sends it to you lol ;-)
:)))))))))))))) very possible :)))
you mean to say there are professionals other than Sorin in the repair market ??!?
i think all of those would have changed the display ... it was a wise descision by the customer 🙂
probably because he is a viewer too. this was the only "actual" professional way to have had this fault repaired 1hr 30 mins ... was better than any movie i could have watched.
5th sept ... was teachers' day in India ... and my salutions to one of my teachers : Sorin 🙏
@@protonx80 Here's a tip... if you don't quite understand the humor in a comment you should stay quiet....
15:26 You can get needle attachements for your probes for a few quid. Easily poke through the cables
I was screaming the whole time, TURN THE FREAKING thermal camera on!
Probably would have been worth checking the chip on the other side of the board. 60m is the track size i think
This is the hardest pizza 🍕 you've ever done 🥵🤯😂
Very good stuff!!! Are you at liberty to provide the source for the schematic? That is the one thing that can limit troubleshooting...without a schematic, it can be difficult!
The hard pizza... Honor above all else.
I bet shrinkable tube is the best solution in insulating those wires.
Why did Sorin not just use his thermal camera at the part where he discovered extra current was being used. It would have revealed the culprit or quicker still at the very beginning. In fact using the thermal camera at the outset of every job would narrow things down so much quicker.
@@dombarton2483 lol, you are clearly not in this field to understand enough.
That laptop is on and lot of ic and mosfet will definitely be hot by default so how do you narrow which is drawing the excess current 👀
Current is drawn by the display itself so discovering that it gets hot it doesn't help because you most likely can't open the screen without breaking it. Better not to know and now it has a free heater to warm hands...bargain I would say
the EC chips flashing is not needed... & if the laptop starts the EC chip is good
salut ! dupa cum am vazut sunt cateva leduri arse si cum ledurile sunt diode ori se intrerup ori se pun in scurt in cazul asta sunt puse in scurt deoarece in momentul cand ai pornit invertorul celelelate au pornit dar cu leduri puse in scurt creste amperajul de lucru si invertorul se va incalzi si la o anumita temperatura intra in protectie de aceia reporneste cand inchizi si redeschizi panelul . problema e de la leduri arse de aceia amperajul mare la alimentarea invertorului practic trebuie schimbata banda de leduri ceea ce e foarte greu in acest caz deci ramane sa schimbi displayul
I think 7.0 volts @ 430 mA should be normal for backlight. It's only 3 watts after all.
Aren't inverters a thing of bygone era wrt laptops which converted DC voltage into AC voltage for CCFL displays?
T-Con = English abbreviation of Timing Controller. It is known by that generic name. For models from 2015 and up to the present: Integrated T-Con, that is, connected to the screen directly. Unfortunately, since it is attached to the screen by brown colored FFC (Flexible Flat Cable) called COF (Chip On Film), it is best to replace the entire display panel.
So, in the end, its a faulty inverter that began taking too much backlight power and shutting down the backlight. Faulty inverter.
For these very thin laptop screens that are glued together, replacing the inverter is almost equal in value to replacing the whole
lid assembly. This is definitely a short term fix. And you already checked the bottom of the screen getting hot .... which I would
have suggested to do.
So what would be a wild guess, is it board or screen?
some pizzas are easy to come by, but some are hard. Just be yourself Sorin.. the dodgy way😅 is faster than looking at a 1½hour schemas which is rather boring because i cant see it anyway lol
Never give up and find a solution! Thats the moto🤔
So, by having it delivering that higher current, which the laptop has not being designed to, isn't it possible that the power supply of that B+ rail will die sooner than expected? Something that was supposed to have 0.06A now is supplying 0.43A. Power supplies are overdesigned but with that order of magnitude?
Reading comments I believe Sorin might have been wrong about that and someone also did the math. Possibly that chip was faulty or some signals from EC chip
proper repair would be new screen, new ribbon cable, but yeah, it would be costly and the repair wouldn't be interesting like this
good job with those two proper calibrated wire 😂
Now you made a Dodgy damage . You should use shrink tube instead of electrical tape...