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- Опубликовано: 13 сен 2024
- Part 1 of this video • #209 Repair Computer P...
i explained practical How to repair computer ATX switch mode power supply. this PSU had no output on STBY +5V standby missing, short circuit in input section, the fuse burnt out. i replaced the standby section wit a buck converter
i shared my easy and perfect troubleshooting technique to repair computer AT or ATX power supply, i found rectifier diodes, fuse, power transistor, diodes in standby inverter section. smps concept and troubleshooting repairing or understanding repair switching mode power supply basics and working principle. how to troubleshoot input electromagnet induction filter, EMI, bridge rectifier and capacitor. we get 330 VDC at main capacitor. after hat the +330 volts are applied to standby power, which is SMPS and makes +5V SB, these stand by voltage are applied to motherboard which pull down the PS ON green wire to zero level, so the ENABLE OR REMOTE ON or CONTROL pin of #smps will go low that will enable pulse width modulation. and also i discussed smps basics. after watching this video you can capable to:-
understanding atx power supply basics circuit diagram schematic with complete tutorial
working of atx smps
if computer power supply does not on, or fan runs and stops, fluctuation, turns on goes off again or fail to start
short circuit, or fuse blows burns again and again
how to #repair #smps
how to #repair #computer #power#supply #atx
fuse keeps blowing
how to repair switch mode power supply when short circuit at input
if SMPS is dead or no ouput
if SMPS have fluctuating output or output voltage unregulated
if smps have short circuit in output
how to eliminate short circuit
how to troubleshoot #PWM #SMPS #controller when there is no switching from #MOSFET
if SMPS have a whistle sound or excessive noise or excessive heat
how to repair mobile charger
how to repair computer power supply
how to repair laptop charger
how to repair inverter of solar system
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#computer #power Supply, #computerpowersupply, #atx #repair #troubleshoot #SMPS #test #hacks #howto #STBY
ATX power circuit diagram / schematic explained • #168 ATX POWER SUPPLY ...
• #178 ATX POWER SUPPLY ...
71 ATX Power Supply Circuit Description in Urdu / Hindi • #171 ATX Power Supply ...
• Video
how to increase output of SMPS • #150 How to increase o...
short in put of SMPS and fuse burns again and again • {145} Fuse Keeps Blowi...
fluctuations in output of power supply • #144 Fluctuations in o...
smps basics tutorial and testing • #141 SMPS Switching Mo...
feedback in smps • #142 FEEDBACK in Switc...
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How to repair switch mode power supply SMPS practical troubleshooting • How to repair switch m...
SMPS / PWM basics circuit description with practical switch / switching mode power supply • SMPS / PWM basics circ...
SMPS Switching switch Mode Power Supply repair Basics & Troubleshooting • SMPS Switching switch ...
SMPS practical tutorial • SMPS Switching switch ...
• Video
SMPS tutorial and practical troubleshooting and fault finding • SMPS / PWM basics circ...
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first lk 👍 bro w salam
good information
mashallah ap bahot achi video banaty heinis se logo ko bahot help hojati hy
assalaam alaikum...beta aapne meri saari mushkilein hal kar deen...bahut bahut shukriya...GOD BLESS YOU
Amazing video sir.. this video helped me to solve standby voltage missing problem
best regards
Thank you sir.i always learn new ideas and new things from your video.my favourite classroom is your Channel
Lk 45 Bhai bahut achi baat batai aap ne ✌️
#213 Repair Computer Power Supply /ATX Standby Voltage Fail Part 2 - thumbs up :)
Thanks my friend cảm ơn nhiều lắm bạn mình ơi chúc buổi tối vui vẻ nhé
alkhumdullilah ful chalai hy ap ki video
16 lk
Very valuable video for ppl
Good evening brother 🙏
Too good and very much useful video sir, thank you so much for sharing your knowledge with us, god bless you.
Amazing work done on ATX power supply
Very nice. Good job
Apne bahut accha samjaya , subscribed
Walikumasalm haseeb shab amazing skills mashallah
Masha Allah bht khoob
Awesome work
Fantastic troubleshooting working
Masha Allah another informative video
Keep uploading your wonderful content
Your upload is fantastic Haseeb.
like 26
wonderful video great sharing
Ma sha Allah great job sir 👍👍thanks for sharing this valuable and informative vedeo 👍stay blessed happy and healthy ameen sum ameen ❤
Great Video
like 49
full watched
Very good informative video, please stay connected
Very nice good video thanks God bless you and take care 👍😃❤👏
Very helpful sharing bro
Interesting video my friend. thanks so much for visiting my channel earlier
22 like
Very helpful sharing
i like the way you share my friend experiences
Thanks bro . Is it possible to.make video while doing troubleshooting. The purpose is to lean the right way to make fault finding.Thanks again.
Superb sir your a genius
Good Sharing
ma shaa Allah it is superb and inspiring tutorial. thanks for sharing
Hello sir, in other video you said standby transformer give 2 power, 5v and 9-12v, then 9-12v use for signal tranformer. Why in this video you only replace with 5v adapter ? So how to give 9-12v for signal transformer to work ? How much power for signal transformer need ? Can it work with 5v ?
Assalamu Alaikum Brother
How r u?
Can i use 5 volts mobile charger module instead of your recommended this 5 volts module for SB voltage????
hi friend.. smart idea...friend I found my lcd problem ..back light led was deflected ...but I found feeding voltage to led is 150v. dc ...is this normal or to high cause led to deflect
what is the average and normal feeding voltage
@@HaseebElectronics Allah bless you ..thank you
Both the video are Impressive!☺️😊👍👌
Hi, I'm trying to repair my 450w ATX, 5vsb was good and noting shorted but it just can't start up, it use WT7527 , TNY277, UC38438 and LM339 IC, all capacitors, transistors, IC, diodes were checked good, WT7527 on PGI and PGO have no power, VCC have 4.5v. but one of the diode SBR20100 if using ohm meter to check is only 300ohm, I wonder will it caused the problem. BTW it's just my hobby to repair non working things. : )
Why computer sometimes automatically turn on just by switching on ups/main power without Pressing the power button on front side of cpu? Is it smps standby problem?
@HaseebElectronics LOL... Why didn't rebuild the traces using copper wire/soldering wick and fix that standby section? Even if transformer is shot, you can easyly open it using a heatgun/hotair or simply throw it into boiling water, and simply rewind it!, eventualny salavage simillar transfromer from other SMPS and just replace it...
my stndby voltage is 7.05 volts at stndby terminal (violet wire and black wire) have replace already components.. but still 7.0 volts .. do i miss a component that is still defective ?
Super = ] HASEEB ELECTRONICS
Nice sharing 100 likes
tres bon tuto . i support you 💖 have a good day my friend
lk fw awesome very nice uploading big like my dearest friend, thanks for sharing, stay blessed with good health & great happiness, be connected thanks have a nice day be happy ameen
ma Shaa Allah your work is adorable ❤️
Like 2 ferry good
👍🌹🤚👌
Out put capcitor 3 pholy hoy thy wo b change kar diay but phr bhi 🤔🤔🤔
Transister , mosfit , diode , IC sub thk hai
Assalamu alaykom brother and thank you very much for the video. It is very beneficial what you do for us.
This last week I bought a switch mode power supply for a PC of type: BEBIBOS POWER SUPPLY ATX 12V V2.32 MODEL NO: ATX-P4 500W at first I thought it was on, when I turned it on I noticed that the fan ran for about 30 seconds and stopped. After a 15 minutes stop I turn it on as usual the fan spins a few seconds and stops. I checked the state of some components: the bridge diodes, the capacitors, the zener diodes, the switching diodes, and even the IC, but in vain it's always the same: the fan turns a few seconds and stops. However, I have the 5V of the green wire as well as the 5V of the purple wire(standby voltage) - Question: according to your experience how to repair this power supply? Thanks your brother from Tunisia.
Green wire wala jo ic hota hai jisko short kar k suppply on krty hain wo Markit sy avail nh ho rha
TPS3510P
Ap is k about btain mujhy is ic k about b
👍👍 👍👍👍
Take care 💚 stay healthy, have a nice weekend
Regards ❤╮ Renate
Very nice 👍👍👍
Salam M Haseeb, can you please explain ho to fix a no output issue probably due to the feedback system. Pluging a DC source to the output can help ? if so , how ? thank you & Salam Aleikum.
Hello very good video.👍✌
good work 👍
Bro problems kuch is trah k chal rhy hain k bs kia btaya jay
Msla ye hai k supply hai 1 mery pas 'Bestec' walon ki Wo bilkul thk hai i mean k voltage sub thk hai out put bhi. Msla asal ye hai k wo jab pc on krty hain to yellow light stable rehti hai display nh ata baki pc k fan on rhty hain
بتوفق أخي
masha allah good work
Kaise ho aap Bhai sahab 🙏
Amazing skills
Mere smps pe stby 5v ban raha hai magar smps on nahi ho raha
Kon se side me prblm hai
Input side or output side
Thank you very much Mr. Haseeb you are amazing!
Question please don't we need 12v on the second output instead of 5?
welcome and best regards
please specify that time reference in the video, at which point you got a question, it will easy for me to answer correctly
5 volt and 12-14 volts are provided by standby power section
and 5 and 12 volt are also available in secondary section
your question for which one section?
please reply
@@HaseebElectronics
Thanks for the reply Mr. Haseeb
I mean you used 5v on the 2 outputs of the transformer shouldnt one of them be a 12v?
yes you are right
Smps in 5v sb. In 8pin ic problem solution
okay dear i will explain
How much voltage is the computer power supply green wire
green wire is PS ON command
basically it is taken from 5 volt standby through a resistor. so in normal condition it is around 5 volt
in some models it is around 2.5 volt are above up to 5 volt
@@HaseebElectronics Thank you so much
Well done
Can I use 5v 2a mobile adapter as external 5v supply as standby ?
yes it can done. it will a perfect solution
@@HaseebElectronics I did that ,smps working +12v,+3.3v,+5v,-12v
@@HaseebElectronics Hi I need your help again ...voltage across two capacitor is 304 v with input voltage of 226 ,
peak voltage must be 226*1.414 =319 ?or 304 v is good to run the smps?
👌 thank you
Amazing 👍
مساء الخير احلى بصمة
نورينى 👀👈
Like 59 nice vedio
Sir I can find part 3 of this atx power stanby voltage failure
@@HaseebElectronicssir u are doing a great job. I really enjoy the part one and two, waiting the part three with much love
Important upload thanks. Come my home.
good
Salam M.Haseeb, nice explanative video. I am trying to fix an issue where the input voltage is fluctuating, i have from 75vac to 115vac across the bridge and main capacitor from the mains that shows 220v. I removed all the MOV and filter capacotors but still unable to have stable 315vdc, any idea where to look at ?
I changed the bridge and checked the mosfet which do not show any short circuit. Thank you & Salam Aleikum.
@@HaseebElectronics Thank you, i will do this and let you know.
@@HaseebElectronics I removed and tested the 2 mosfets, they seem good the problem was rather on the secondary side as I found the schtokky diodes shorted as well as a swell capacitor.
After changing them, i still have no output, what generally goes wrong when the secondary schtokky goes short ? thank you & salam aleikum
@@HaseebElectronics The voltage at capacitor is now very stable at 315vdc. I have 3 optocouplers, i put a diode in all of them ?
Haseeb Electronics Salam Aleikum. I checked and only one optocoupler is linked to the negative side of the main capacitor. I placed the diode and lost everything in the secondary. The secondary voltage when i turn on goes to 6 or 7v then dies to 0v not fluctuating.
Haseeb Electronics Hello M Haseeb, i found the optocoupler responsible for feedback, once disconnected and a diode in place i found the original 12.33v but i did not feel any component heating up. I have a lots of smd diodes in the other side but all cold... Thank you and salam aleikum
Or ye b k meny 1 0r supply sy pc ko on kia to pc on ho jata hai sahi work krta hai jab us supply ko lga0n to yellow light push button pe rehti hai 0r push button work nh krta baki pc k fan etc on rht hai
Thanx :-)
Amazing
@@HaseebElectronics yes bro.
The spirit work yes
I have a smps stndby 5v r ok
But smps not working
@@HaseebElectronics atx smps
Input part me 2x13009 1xmosfet
Output side 2 ic lm339 & ka7500b
sir i have problem with my power supply, first there was l leaked capacitors on the output and the fuse was burned out and i changed the caps also the fuse, when i plug power standby is ok.when i try to power it on, it wont turn on it makes noise, when i remove the jumper for i used to power on, the noise disappear, can u help me what is making the noise
it means you have something short or leak in secondary side. might be some rectifier or capacitor which is causing to drive the power transformer in overload condition
@@HaseebElectronics thnak u sir its very helpfull
@@HaseebElectronics sir can i use liner power suply for laptop, i mean by using 19v transformer then converting to dc and by just adding output caps?
5 volt standby aa rha h or input section Sahi h output me sirf standby he green ko black seshort Karne par 12v and 5v 3.3v nhi as rha
@@HaseebElectronics output does not start only standby is ok
لايك
Like my friend 🤝👏👏
wow;.
Like uploaded
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