Acer Nitro 5 an715-51 - not charging no power motherboard repair - Lucky customer
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- Опубликовано: 9 окт 2024
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Real world repair videos like this are more valuable than ones where the thing is restored like new. You get to see just how much leeway there can be in some circuits and what you can get away with.
The thing you do is what I call a proper repair. Most of the computer shops they don't bother putting some effort into doing repairs all they do I replacement and that's all.
Don't start doing repairs like we can do, changing cables, connectors, your thing is finding a sensitive alternative. Love your work, please dont change.
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Thanks for being real
And please don't change
Hello🤝 you teach us how to repair things, using what we have at hand and at the cheapest possible cost, that's why everyone is happy, as you once mentioned, why shouldn't I repair something just because I don't have the original part? Yesterday I had an accident with my Huawei tablet, the charging port was broken. and pulled out the protection diode, when I replaced the diode and soldered a new port, it turned out to be a short circuit, after half an hour of checking everything, it turned out that Huawei had imagined that he would replace the plus with the minis in the port and that's why after soldering an identical port I had a short circuit, I found it a different port and I modified it to suit my needs and now I have a working tablet for PLN 0, so never change, you are my mentor for everything I have learned, I owe it to you, thank you and have a nice day.
Hey Sorin. If you have too many repairs just send some to me in Australia . I'll help u out.
About that earlier backlight repair, in my practice there are a lot of cases where the cable is damaged inside, the pwm or enable wire is cut off inside. If you just short them then at some moment in the future a bad thing can happen inside the cable, the open end of the wire can short to the conductive shield of the cable. If the cable is not cut off, now you are sending 3.3V to the EC, which can later make it burn further even more, to the point of not working at all. So if you are doing a job by shorting enable with pwm, you should make sure that you are not "feeding" the voltage to the EC, by cutting that track.
Actually not, it's a matter of 'Kirchhoff's current law for nodes' based on the fact i got backlight means i have no power draw on the pwm track, means the track is floating, means is safe. That's the first thing you check when you apply current to a power/signal rail, the current draw, NOT the voltage
@electronicsrepairschool you are correct and i agree with you, however, i had cases where even if there is no significant current being drawn at the moment, it can start drawing it later, because the "burnt zone" inside of a damaged chip have a probability to be somewhat "unstable" to some degree, it is not 100%, or, in other words quite impossible to predict how it will behave when time goes on, it is still deteriorating as time goes, even without voltage being applied. I think you have probably stumbled upon some burnt mosfets or chips, that can appear as shorting or half-shorting at one moment, but later they can change their "behaviour", it is an interesting thing to see, as if they are a bit alive, if you know what i mean. Same with capacitors.
Or for example, when we are searching for a short by injecting voltage to some rail. Lots of people make the mistake by starting with too high current, there are a lot of cases in my practice when starting with a 0.1A current there still is a short, but i cant find a heat source, so i ramp up the current to 0.4A, make a quick search for a heat source, and then after not finding it i turn it up to 1A, after which it stops shorting, and it means that i missed a chance to find it by being too quick, while i should have searched a bit longer with 0.4A and not hurry too much with ramping it up, because now it means that some unstable component (a cap for example) stopped shorting, but later it can start again.
The 3V that is being used for pwm or enable are low current signals, that is true, however, as the burnt zone can still be somewhat unstable by itself, we should make sure to cut the track, so that it will not start pulling the signal down any time later, i am just saying from my practice that there is such a chance. Sometimes just out of interest i even measure how many kiloohms/megaohms does the burnt EC pin has to ground, and a lot of times the kiloohms are quite low, and (surprise!) even fluctuating without doing anything. In some cases fluctuating enough that the 3V signal can be pulled down hard enough to make a difference, especially when the temperature inside the EC chip changes, when computer heats up.
As i said i agree with you, just saying that it is not too hard to cut a track to be more sure, even if its a cheap repair. I had cases when the 3V level is still being interpreted as "high level", while in fact its on the edge of it, say for example 2V or even lower, and its fluctuating without any guarantee that it will not drop too low at some time. And later when customer comes again, you can lose valuable time that you saved earlier after all, taking it apart again, etc, if you see my point? Anyway, great job and good luck!
Hello Sorin, as always, magnificent work.
Yet another successful solution ! A repair is a repair "dodgy or otherwise" it is about being competitive ! All the customer requirements are , their device returned to them competently and professionally repaired at a reasonable price ! The machinations of the repair seldom have interest or are required by the customer !! Nice repair Sorin.....
Thank you for mentioning why there are 25V on the mosfet gate, I always wondered where this slightly higher voltage comes from. So it's generated by one of the managemant ICs and needed to fully open the mosfets. Good to know, thanks! o)
It comes from the charger IC
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@@AcerIndiaYT thank you
The laptop had been previously opened to install the obviously non-stock RAM? However in a dusty environment it could be like this quite quickly - or maybe they upgraded in the first week they had it.
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@@AcerIndiaYT What?
Genau den Fall hatte ich letzte Woche auch. 3,2 V auf der Mainpowerrail. Erster Mosfet defekt, ebenfalls ACER…
You just clean the area and glue it back down, that's how the PCB is manufactured. It's pretty common for northwestrepair to glue down 30-50 new pads on a GPU.
Those mosfets got hotter than the sun lol
I put a little crazy glue on the screw hole then I use hot glue and it works amazingly did it on 10 laptops already and no problems.
track under musfet which is going is soldered with ground done from down side of mosfet to down to hole of ground.
Whack a mole SMT soldering by Sorin! Nice job on this repair and thanks for sharing as always!
Good job mate 👍
improvise, adapt, overcome 💪
17:54 tuning It's free, but only at Sorin! 🤣☺☺
That's a proper dust cat, you can even give it a name
이런 수리과정이 진짜 리얼월드에서 벌어지는 일 같네요. 잘 보고 갑니다. 형님
Fr
The motherboard ripped off lol 😂😂, I can feel that
Totally not your fault, I bet that mosfet fused into the layers below it, you can only do so much LOL
I wish I could send you my laptop, in the U.S they just throw things out and buy new things, and repair shops sucks around
Enough dust binnies to start a hare farm!
have you encounter a laptop that needs to be plugin to power for a few minutes before it powers on? btw i remove the battery model acer nitro an515-43
this happened to my acer helios 300 and now i have a paper weight laptop..im still waiting for prices to drop on a similar motherboard from china
What do you mean FRIDAY?? It's FINALLY FRIDAY! :D
why didnt you put on your anti static strap?
nice job man
Hello sir I'm your new subscriber n new student frome Indian in new delhi
What is the name of your new/other channel?
Nice fix again Sorin.
Sod the haters,i would've done the same.
Lucky escape on the pulled layer though :)
Here we have a nice Acer laptop. It is proper nice🙂
Excellent job but r still confused as how the main rail was 3V everywhere? No current and shorted mosfet ect
May be battery voltage
That's more like it! Y didn't U explained that in Lenovo repair video? :|
Good job💯
that resistor was 4R7😐
I have a bosch go electric screw driver, can i use it on a laptop with a battery plugged in? is it safe to do so?
Nice vid
What was the function of that resistor? It was 4.7 Ohm This one is how much? 10 Ohm? I think this might not work under heavy load.
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What is the glue stick thing you used on the hinge. ??
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Hi please help me with little information about mosfets can I use tph1r403nl instead of xp3na3r4
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You should have cleaned the burned board under the tracks, no? It is conductive and can start burning later.
Isn't the mosfet going to overheat again, especially now it doesn't have proper thermal conduction with the motherboard?
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ce ai gresit ? temp prea mare ?
That Fixed brightness job with bridged 3V. Can you put a resistor in and reduce it down a bit to 75% brightness? or is that totally wrong circuit to do this?
won't help, I guess ...it's a pwm signal - it's digital, not analog
@@ch2o2 Yeah, i was thinking after and realized that and was thinking of maybe running a couple of wires from the brightness circuit to a small pot which you could put on the side maybe after drilling hole. If you knew this well, you could do for customer without too much time wasted as many have pointed out, night playing , you need brightness way down. Fantastic channel and his skills and ideas are so good as other repairers fail. so not criticism of Soren.
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maybe it is a good idea to put some termo pads on the mosfet
11:24 You lost a small cap just to the right of the big resistor and didn't realize it because didn't you replace it or re-soldered....
it is must be 25v on the gate in every laptop ?
yeah baby!!
If ever there was doubt that the majority of dust is human skin…this is a perfect example.
at 10:47 secs when current sensor moved you also lost capacitor next to it.
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Good job💯👍👏
I unplugged the screen before battery and my laptop does not turn on anymore, LV16 to LV 10 capacitors (0805 2* 1.25 gray) and main power beep in buzzer test, please give me a hint/suggestion to diagnose the problem. I really need your guidance
Acer Nitro 5 AN515-58-725a
Acet Nitro 5 AN515-58-74TW
the disaster master solver of problems
Sorin, come to Beşiktaş...and Sorin magician...He can disapear resistor...like Joker pencil thing....taaaadaaaa....
flying diots.. 😂 congratulations 🎉
Was there a reason not to add flux to remove the mosfet ?
What would be the purpose?
Flux helps produce nice joints, prevent bridges and remove oxidation.
It doesn't lower the melting point of solder when removing things.
You could see from the discoloured pads, the component got hot enough to partially weld / braze itself to the board.
Makes sense. Thanks.
Resistor flew to the 9th dimensions😂😂😂
You are your own worst enemy on this one. LOL.
Im from Slovakia, can you repair my AcerNitro5 my problem is- than laptop is didnt charging
🔥🔥🔥
Dont forget to monitor the temperature after a repair .... in case the customer ... open up and then ...saw smoke later ...Not very nice for a repair job ... done ..
👍👍👍👍👍👍
12:55 😂😂😂😂😂
ha ha lol i love the way you just get on and fix it no problem
why older laptops dont have too much io chip problems
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look someone opened it to put kingstone mamory inside but did not cared about dust so weird
The resistor has blown (away)!
Şu Acer sıkışan menteşelerine bir çözüm bulamadı gitti. Asus öylemi hiç menteşe sorunu varmez...
ahahahaha yes Sorin, send those works to the complaining viewers. I 100% agree that on that value laptop that tipe of job makes sense. And in this video with that welded mosfet i would have simply used a 4 or 5amp fuse wire because that new mosfet now is not glued to the motherboard and it will have a hard path to dissipate the heat and could burn again.
You've learned to edit your videos. Fucking congrats.
Acer 5 nitro is a problem laptop
shoulda used low melt or scratched the top down. way to forceful
adblocker is broken
Takie elementy SMD przenoszą się do innego wymiaru. Znam to ...... 😅
This is the same video you uploaded 17 hours ago..
Not sure i understand, i just now uploaded here, short version of this video has been uploaded yesterday on facebook, tiktok, and laptop repairs channel
I gave back my Acer Nitro 5 to Acer Service water damage Not charging but after water spill Laprtop works great now it's not turn on. Price for.... NOT FIX for MB Replacement 990 Pound. They are insane. Laptop Cost 599