ASUS RT-AX86 WiFi router repair - I got punished for replacing a Mosfet :(
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- Опубліковано 29 січ 2024
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![Faulty ASUS Gaming Router [RT-AC86U] | Can I FIX It?](/img/n.gif)
What an chad . He is old , he has a family , and he was playing Diablo so he had no time for a video ! This guy is a legend !
"We don't have picture, but it's working" 🤣🤣🤣
I'm kinda happy that you made the on/off button work again by replacing the MOSFET. It wasn't in vain. Thanks!
surprised the manufacturer used a mosfet with the switch... wouldn't it have been easier and cheaper to just put the switch in series with the power connector and the rest of the router? ie, traditional switch wiring
@@devicemodder not efficient because there will be voltage drop on the switch
We miss you, we didn't hear from you yesterday
😢😢😢missed you
Seems he was playing Diablo 4 the day before making this video lol
i am doing router repairs almost everyday but sometimes i can't fix due to non available videos like this one , please do more router repairs so we can learn more from you thanks
The only way Sorin can do more router repairs is if more people send him routers to repair! No routers, no repair videos ;)
@@retrocomputinggrotto Unless it's an expensive router, most people won't bother especially if it has a warranty.
@@retrocomputinggrotto No routers, no shorted routers, just like mosfets.
This is why I always replace parts with higher power ratings since current electronic designs are almost always marginal for overload capabilities. I am old school from Tube/Valve design days. Keep up the good work.
It happened to me once, I was fixing a laptop which had a short on the battery connector. It was a shorted capacitor so I removed it and the laptop worked fine. A couple of days later the man came back and told me that the problem is back again, so I opened the laptop and the short was back on the battery connecter. The problem was also a shorted capacitor which was exactly under the old capacitor on the other side of the board. It is probable that this capacitor was going bad and upon heating near it, it broke down .
Thank you for the video.
very nice repair Sorin👌
No MOSFET, no shorted MOSFET!! I've been trying to repair a monitor with a backlight problem all day and made it a bit better and then a lot worse! Not really done that sort of repair before so I'll mark is down as experience and hope for a better day tomorrow!
The inverter use a couple of complimentary MOSFETs, one P, the other N.
When the MOSFET shorts out - usually because of a voltage spike - they also short out the gate, destroying the driver IC.
You need to replace all three components at once; and your backlight inverter will work again...
Your pain is our gain Sorin! Thank you!
Great fix Sorin thanks 😊
Good job mate 👍
Great video. I still have some of these old routers and they work great!
nice to see you again sorin after 4 days we didnt saw you
While using the screwdriver, you should hold it straight. New with every screw we all could hear it bounce.
Looking forward for that capacitor replacement video 😂
😅
Not gonna happen 😂😂
Another great and funny video, and video quality is so high now. Proper nice.
Soren I really like your videos. I think those two capacitors in parallel both failed at different times only because when you removed the SHORTED one, the one remaining could not handle the power alone. Notice you upgraded with only one, but larger size for more wattage. The reason the design power button to a mosfet is to eliminate the noisy variable contacts that could cause strange problems. In electronics when we design without WEARABLE analog parts, thats called “mechless”, it’s ok to use analog switch to drive mosfet so we still get mechanical tactile button without the analog problems ❤
If we are ignoring the mosfet has an amplification factor, yes, is making sense :))))) But, any noise at the gate it will be on the output of that mosfet..
@@electronicsrepairschool no, what I meant was, we use mosfet as switch to avoid problems of noisy analog switch because when you use mosfet gated with analog switch there’s no tactile switch noise. Check for information on I believe what’s called analog switch bounce
Thanks for the very informative video Sorin. That's twice you have helped me out now :) Once with my Tv and now this very informative video for the router. Can you recommend a reasonable priced flir camera? Awesome job :)
It works but no picture!!! hahahahahaha you are amasing my friend..
Thanks
I believe the short was only between source and drain that's why it worked, i wish you've tested between gate and source too but nice work as always
Mr Sorin We need more videos here plix😢
Haha, "mad busy" I am thinking he didn't have the time to film and edit... but then qualifies with "playing Diablo IV to level 92 lol".
Thanks Sorin...
cross capacitor works, great repair
Yeah, because the pads are connected. He crossed it, so that it would fit. The cap is bigger than the old caps.
Great video as usual,How could you determine the defective caps specs for replacement,
For both volt and farad?
Hello🤝proper dogge caps from Asus 🤭good job Sorin 👍👍👍👍👏👏👏👏👋👋👋👋
Nice work, I'm guessing that pmos is for reverse polarity protection
Maybe the heat killed the already weakened capacitor
These ASUS routers do run hot, that's why I usually put two external fans on the rear vents powered by the onboard USB. The temps on these boards are in excess of 85 degrees constantly...
That capacitor got baked by swapping the mosfet and it was already about to blow. You should consider yourself lucky it went because it would have gone bad shortly after the customer got the device back and you would have had a warranty to deal with instead.
Good job Sorin..No MOSFET, no shorted MOSFET
Huh, Sorin DESOLDERED a cap? wow, new ideas ;)
maybe the mosfet is there so that it can be restarted over the network. Thanks for the funny video
By changing the MOSFET you may have saved a return under warranty. The 2nd cap was going to go faulty it was just a matter of time.
"we replace the capacitor in a different Video." 😂😂😂😂😂great!! 😂😂😂😂
greate master
Just an FYI this fault is also common on Draytek Vigor 120 & 130 ADSL MODEMs. Just look for a hot cap on the rails. P.S. In the case of a SOHO router with wireless AP, when do you ever see people needing to turn them off? I would have left the MOSFET as it was. The second cap failure was probably unrelated.
Hey Sorin ! Another great video thank you. Can you help me I have a few questions about your microscope camera and adapter.
I also have the RisingCam RT5109 but I ran into 2 issues. When you connected everything did you have to flip the camera view at all? When I connected mine to my trinocular ms I had the flip the view in the software left to right and 180 for the video to be the same orientation. If I didn’t the wires wouldn’t be facing the back of my ms. It’s really odd since none of my other cameras did this. Also my other issue is finding a .5X C-Mount camera lens adapter that doesn’t have a vignette issue. Amazon has a bunch but they all have distortion on the edges or leave me with tunnel vision. Can you tell me where you purchased yours? The Amazon ones are not true .5X or the quality is really bad. I might just buy one from RisingCam but was hoping to get one local or confirm that they are selling the authentic one. Amscope discontinued the original and now only sells the .45x. I tried the .35x but the tunnel effect was even worse. Any help would be appreciated.
Hi, great video, I have also AX86U Asus with broken capacitor, I do not want to change mosfet, only capacitor, could you tell me what value of capacitor i should buy? its SMD right?
Wait....did Sorin really replace a cap?!?! I have to be dreaming... i'm going to mark this day RED in the calendar... :D
In some critical areas, missing capacitors will cause permanent damage to the ic, he knows that.
it's better for it to happen to you than for the customer to take it and have it happen to them.
The mosfet was acting like a relay in a 12V automotive circuit to switch a higher current using a lower current trigger? Reminds me of using the old Bosch relays in automotive to switch someone's high current spotlights with a low current low profile switch versus their giant high current toggle switch.
second capacitor was already almost dead from the heat of the first one replaced.
you are funny man , 1 cap to cover both slots lol
if you move around the letters in rosin you will get Sorin 😄
Hello Mr. Sorin, I found shorted capacitor on a laptop, but is the bigger one, SMD same shape but black with a + sign, can the laptop work without those?
It's not a coincident. When you removed the other capacitor the one adjacent to it also got heated and this heat broke the capacitor!
Funny Repair
We remember: no capacitor, no short! 🤣☺
A router is a new laptop 😂
I love you
What is the name of this solder iron what you are using, please tell the name of this to buy for myself, thank you
Mosfet not shorted, but broken capacitor
Thank u sorin ,I not sure about this Router working with 19 v?it Can be 12 volt ?
Nope, it's definitely 19v 2.31A. I have one of these and that's what it says on the power supply.
its working lol .....classic sorin
😂👍👍
How did you know the right capacitor to replace with?
tenor.com/en-GB/view/mr-bean-gif-23140940
He got one off presumably a 20V rail from another mb, and it was 3 times the size, the bigger the better for most of these filter type caps, so it was likely bigger due to higher uF but also potentially higher voltage support, win-win.
@@electronicsrepairschool😂😂😂
@@electronicsrepairschool 🤣🤣🤣🤣🤣🤣
@@electronicsrepairschool😂😂😂
That was a "proper tricky capacitors". All capacitors are made in a factory just to "piss off Sorin". That's their job.
The MOSFET was just a calibrated wire 😀
Hi Sorin, next time let u guide from your instinct, don't warry about people aren't happy if u don't change the component... thank for the knowledge about this router...good job and yes concidence my happen bye francesco timpano from florence italy
I'm glad he did, like he suggested, it's used for remotely rebooting the router. I have a site to site vpn where I need to often reboot the remote node with nobody physically present. Kudos to you Sorin for a proper fix!
I replace a capacitor in a different video not this one 😂 you did 😮😂
14:19 But don't care if is mad hot you put a lot of solder!!!!! LOL!!!!!!!!!!!!!
I thought both caps were hot at the time: both faulty. They were together; things die if its partner dies.
There are enough WiFi Routers around consuming even up to 25 Watts, so declaring it to be shorted by getting just a 0.33 Amps reading was a pretty lucky guess ;-)
It's because the voltage went down to 0. That means that it was shorting out.
@@KL-zt6jx aaaaaand another one, who did not understood the Ohms and Kirchhoff's laws, as well as current limiting behavior of voltage and current sources, but trying to prove something... The voltage would go down even with no short there with the current limit set that low in case of the load being high enough. There was a 50/50 chance of being it shorted or just being a high enough load, causing the readings. A simple look at the power consumption declared on the sticker of that device by its manufacturer would shift that ratio more (a lot more!) towards it being just overloaded. So the content from my initial comment remains a true fact, set in stone by the laws of physics. Consider to experiment a bit with a current limiting power supply. A simple battery can be the source with its ESR being the limiter.
@@KL-zt6jx forgot to mention the most important thing: The voltage did not dropped to zero, even if Sorin said that in the video. Always use your eyes, not just ears
He did say that he lowered the current, but not hope much. He said "a little". 00:35
I think that he lowered it to 1amp. That is more than enough for it not to drop to 0 volt. That clearly indicates a short.
Just look again at 00:30 . The voltage dropped all the way to 0,7 volt. I'm uSiNG mY eYeS.
@@KL-zt6jx 00:30 is exactly the moment i wrote about above, thanks for confirming my guess about you not understanding the basics of electronics and the physics behind it.
But...but...we no have picture 😏
sorin you need to play Baldurs Gate 3, the game is very good, great video
What apenas to a simple box desing
This modem is 12v
I am using this exact router, nothing wrong with it, just saying. 😅
Love your content, but please muffle your meter's beeper,
No, we want to hear the beeping one.
@@Drottninggatan2017 Hear it of course! Just not so b- loud 🤣
Only kind of dodgy repair I will accept is a Sorin Dodgy Repair! That repair will last longer than if the factory were to fix it.
Proper calibrated fuse 😂
That's why you should use the fuse and not change mosfets.
God bless you Teacher, Jesus loves you and I love the passion you have for your craft. Thank you again for a great lesson.
Better cooling, are we being pranked?
I'm sure you've explained this before, but if there's only S, G, and D on a mosfet, why 8 pins?
Current handling
@@donhiman
Bigger pads would be better. Do you know why they chose more pins instead of bigger pads?
True fixing soni please I did message you about my netgear ❤
thnx alot man .. but your soldring iron is terrible .
Dioda interna era invers 😉
lol
Când te-am vazut prima dată acu vreo 2 ani,am zis că ești rus. Arătai ca un rus,vorbeai ca un rus,dar parcă ceva nu era ok,aveai un stil diferit,mai târziu am realizat că ești român adevărat cu glumele la el. Ești inconfundabil. Nu te-am auzit niciodată vorbind românește,sunt curios cum sună...
Even Router dies Asus brand wtf. have tplink ,netgear ,on 20 years constant
First
the Capairor GOD Cursed U Sorin , for removing his SONS and Daughters
That will teach you for cutting corners and doing a dodgy repair
A classic example (perhaps) of what can happen when a voltage spike appears and you only have half the capacitance, because one was removed. There is also a tiny third capacitor which will have suffered and is in no way rated at least 25V.
Before writing this comment, I was instructed to "use common sense!" ... My common sense tells me that a Wireless Router is NOT powered by a "charger" (referenced repeatedly in the video), and does NOT contain rechargeable batteries. A charger is for charging rechargeable batteries and devices containing same! ... Is that "common sense" enough? ... Frankly, I feel a little insulted to be told to use "common sense" by somebody who thinks a Wireless Router is powered by a "charger!"
if you are new to the channel you're kind of not having the right to say so this is a very informative and methodical channel. It does not matter if you call it a charger or adapter they both send charges. Batteries use "adapters" or "chargers" you can charge a battery with an adapter of the same voltage rating and current demand it does not matter 🙂 and even if the adapter has more current rating the battery or any other load will take only the current it can take. I mean you should b able to power your tv if you know what voltage it's rated for with a battery of the same voltage rating it does not matter except that batteries will run out obviously this is why this router does not have a battery.