{311} Computer ATX Computer Power Supply Repair / 5V SB Standby Voltage Fail / Input short circuit
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- čas přidán 2. 01. 2021
- Computer ATX Computer Power Supply Repair / 5V SB Standby Voltage Fail / Input short circuit, Fuse keeps blowing
i explained practical How to repair computer ATX switch mode power supply SMPS very easy. this PSU had no output on STBY +5V standby missing, short circuit in input section, the fuse burnt out.
Download 300 Watt computer ATX power supply circuit diagram /schematic using 2003 IC bit.ly/3MSExF9
i shared my easiest and perfect troubleshooting techniques 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
#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...
how to repair troubleshoot smps • Video
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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Hi Sir,
Sir one week ago i asked you to make a video on how to repair and change the voltage and current through a potentiometer of a Power Supply Based on TL494 IC, what is the phenomenon through which the power supply which controls the current, and i also asked you to make a video on how to make a power supply which is powerful at home with simple components using TL494 IC. Sir please make a video on this subject. I WOULD BE VERY GREATFUL TO YOU.
Thank you very much,
LOVE FROM INDIA!!!
You are great sir, thank you very much. There's a great need of people like you on CZcams who have genuine knowledge.
It's my pleasure, happy new year dear
As a Power Electronics Engineer, I admire you and your circuit analysis! You are one of the best in this field.
salaam o alaikum brother
thanks a lot for your valuable words
best regards
Haha. That fuse didn't burnt out, it got sent to hell and exploded into a death ball. Thanks so much for your helping all the societies around the world. Unlike governments , you are actually doing a great job. Thank you.
Fabulosa explicación. Muchas gracias por compartir. Saludos.
thanks a lot. stay blessed
में भी एक इलेक्ट्रॉनिक्स स्टूडेंट हूं आप का समझाने का तरीका बहुत अच्छा है।मैने भी अपा का चैनल ज्वाइंट किया।
best regards and special thanks for your valuable visit
मुझे यह जानकर खुशी हुई कि आप भी इलेक्ट्रॉनिक्स के छात्र हैं। शुभकामनाओं के साथ विशेष धन्यवाद
Wonderful work brother, happy Sunday!!!
Repair Computer Power Supply ,,Wonderful work brother 👍👍
this series of vids i will wait it finally smps tutorial one of my dream to know how it works and repair it
yes dear i have to complete it. i will dig it deep and will try to explain every possible point
Thanks for sharing your experience and knowledge 🎉
Very useful description. Thanks for your job.
thanks a lot dear
SO PERFECT WORK DEAR I LK ..I ENJOYED WITH U
MANY TNX
Great presentation like always, with an excellent explanation, keep it up bro...
So nice of you
Great upload.
Wish you a happy, healthy and prosperous new year for you and your
thanks a lot. stay blessed
thank a lot sir haseeb from morroco .
Ma sha Allah as always well explained thanks for sharing stay blessed dear brother
best regards dear sister. stay blessed
Amigo adoro seus videos, sou do Brasil, ligo a legenda pq não sei fala inglês pelos menos uns 70% por cento eu entendo kkk, graça a o meu conhecimento de eletrônica, obrigado por compartilhar seu conhecimento você e nota 10
muito obrigado querido irmão
السلام عليكم ورحمه الله وبركاته بتوفق دائما يارب احلى بصمه
Great job very good technician Big thumbs up keep on blogging friend
Thank you so much 👍
جزاکم اللہ خیراً کثیرا۔
Well explained & presented video.
Thanks for sharing
So nice of you. stay connected
Assalamualaikum dear brother.MashaAllah amazing and informative upload.Thanks for sharing your valuable work...
So nice of you
MashaAllah , nice video , u r doing good job , excellent work . i like , watch till end .
Thank you so much
Awesome mashallah superb informative vedio big thumbs up thanks for sharing stay blessed and happy good morning
Jazaak Allah khair
Very good and informative lesson
Thaaank you
You are welcome
Thanks for sharing God bless you brother happy new year💟👍🎊🎈
special thanks for your valuable visit
Happy new year
Sir i like your desoldering pump very nice
2nd lk 👍 bro
very important
Lk 46 good sharing ❤
Keep it up 👏👏👏👏
Thank you so much
Love ❤️ your video’s
Thank you
You are so welcome!
Lk. 64. Very useful upload big 👌👌 and Happy New year 🎊🎊
Thank you so much
happy new year
Thank u sir my psu just blast
Very clear explain thank you sir
You are welcome
Excellent information on power supply
Thanks for watching
Happy new year sir
Thank you for your great tutorial video in electronics. Will you please make step by step video about diagnostic and repairing ups power board ? Thanks in advance !!!
I will try my best. to share full featured troubleshooting process
Resp Sir! Very Nice Class Sir. -- ChinnaRao Paderu Andhrapradesh
most welcome
@@HaseebElectronics Dhanyavaadh Sir. -- ChinnaRao Paderu Andhrapradesh
Best way explain. Keep sharing
Thanks a lot
Thank you 😊
zabardust very informative video great sharing bhai
Thanks for visiting. best regards
Mashaallah Mashaallah.. amazing work my brother.. Allahswt continue to bless you AMEEN AMEEN SUM AMEEN...🍁👃👌🍁👃👌🍁👃👌🍁
Many many thanks
Very useful information sir thanks
thanks a lot dear
Very beautiful video h 🙏🙏🙏🙏🙏
Wow that's awesome dear friend 👍
Thank you so much 😊
stay connected
hi friend...good video
ماشاء الله تبارك الله 🌹👍
MashaAllah , ilike ur work sir
best regards and special thanks
Great tutorial sir
Thanks and welcome
Best sharing your experience video
Thanks a lot
As always good sharing 👍🌟
Thank you 👍 for your valuable visit
That's very beautiful 😍 My brother 👊 give you super 👍
Big thanks
swiching grey and green , but now .. thank you , we have more blog ano tther video tuturial thank you ,
You are welcome!
nice job dear bro ,big like
stay blessed
Many many thanks
best regards
Thanks so much again and again
Always welcome
Nice explanation sir😊
Thanks and welcome
Walaikumusalam, thanks for sharing your knowledge.
It's my pleasure
Great job 👍👍👍
thanks a lot
Wonderful work. Good day brother
best regards dear sister
God bless you. I always wish I have more sweet brothers like you. But I am not getting 😂
Very nice
L66...very useful share...
Joined you...
Very nice brother
thanks a lot dear
Very good job
best regards. special thanks
sir pleas ATX series ..really really need it badly...
sure i will make a complete series on ATX on my both channels
on this channel in English language
and on my *haseeb electronics urdu* videos in urdu language
Good Luck my friend ❤️😊
thanks a lot. stay blessed
nice video
Thanks a lot
L53...nice share....
Thanks for visiting. stay connected and keep visiting
Excellent
Thank you so much 😀
Very good video , I will impatiently wait for next video.I have got one ATX SMPS where stand by voltage is 5V and when ps on is shorted then SMPS starts for few minutes and then it stops.what will be the reason ,may be short capacitors on secondary side or elsewhere.please guide.
if it stops after few minutes, then there is possibility of leakage of output capacitors or rectifiers
try to re-solder POWER MOSFETs, Power transformer, and power rectifiers in secondary section
i will share the next part of the video very soon
@@HaseebElectronics thanks I will check secondary side capacitors and then let you know
Super 👍😉
best regards
Good job weldone sir!
Please Sir, how can one get to know the voltage rating of a zener diode in a circuit since this is not always available on the zener diode body?
Salaam Janab Bhaiya Jee
thanks a lot. stay blessed
Superb
thanks a lot dear
Great air
best regards and special thanks
I have a faulty atx power supply and standby power is available how to check further? Which video is in continuation of this video? 311
Nice veadio
Thank you so much 😀
Please help me i watch your videos, i fix 2 pcs atx power supply, one atx psu standby voltage is 3v, and the another .1v to 3v flunctuation, what might be the problem, when is the release of the continuation of thiz series much anticipated, what is the problem when low voltage or flunctuating standby voltage?
👍👍
GREAT WORK,DO YOU EVER SUBTITUTE ANY PARTS FROM DONAR BOARDS OR TEMPORARY BYPASS OF SOME COMPONENTS LIKE MOSFETS,TRANSISTORS.
thanks a lot. stay blessed
yes i take parts from donor boards just for making video tutorials
otherwise i never compromise on passive components. but ICs and semiconductors are reused if that are functional
Assalamu Aleyküm brother. Thank A lot from Turkey. You are perfect knowledge in this Area. İ have A question. Stb voltage is 5 volt but pson voltage is 2,46 volt and power supply is not turning on? Everything is seems like normal. İ will so happy if you answer this mu question. Assalamu aleykum brother..
Sir,
Can we replace 5027s (small) to c3866 big?
After chnage it 3866 i get 8volt in standby? And lamp glow little.
Thanks for the service you do for us. Sir in my atx power supply power good is not generated, but I get all the voltages. What should I do now sir?
if your ATX supply have any comparator like LM339 or LM358 check its +ve supply from SB voltage
and check that 5 volt from secondary power supply is fed to this comparator to generate PG signal.
or if this ATX have supervisor ic to generate PG signal, then trace its circuit to sense volts for Power good signal
🙏❤👌Genius teach sirji👌🙏❤
sirji multimeter Best Konsa h❤🙏👌
thanks a lot dear
multimeter to Fluke ke achhey hein lekin expensive hein
aap Pro's Kit ke, Uni-T ya kisis aur company ka meter jis me auto-range ho, frequency, capacitor, diode ka option ho, le lein.
i suggest, please check Pro's Kit MT-1232
@@HaseebElectronics Hertsfuly Thanks u valubal feedback
Sir, in one of ATX supply 5V stand by and PS on 5 V is there 16 V available in feedback transformer still it is not turning on what is the problem, how to rectify please guide me
what about if 5vsb slightly higher? about 5.6v?
can u help ? i startup my pc and my power supply has short circuit sound and than when i turn on keyboard led lights short circuit sound goes up or turns off pc so whats should i do?
Hello sir, Assalamu Alaikkum . Can you do video that how to setup a series lamp for find short circuit
Assalamu'alaikum sir, Very Nice Explanation sir. I Got case when two Capacitors on main section input wasn't reach 300+ vdc. It's only reach 170 vdc. Can you give me a clue, why this situation happen ?
Tks very much sir
MashAllah
Jazaak Allah khair
Sir Kindly Share Schematic Digram in description to help us in future.. Kindly
please check video description
bit.ly/3MSExF9
Haseeb 👍
thanks a lot. stay blessed
I have 8 pins 290 watts psu. In my case this only 5 volts is low to 4.73 volts. The problem is, my computer remains turn on for few minutes then suddenly turns off (power out), then again restarts after few minutes.
In other wires i have perfect 12 volts.
How I diagnosed that I have faulty a PSU. I replace this PSU with other 280 watts atx 24 pins using connector. Now, my pc is working fine with old psu.
But i want to repair its own built-in psu.
Very good video sir ji sar isko Hindi mein bataenge sar ji
I have an ATX Uranus power supply, and it never turns off, I've already changed 3 motherboards, and the defect is always the same, it's always on, I checked that the green wire is in a short circuit with all the black wires. How can I resolve this? Could it be the output electrolytic capacitor? Could it be the optocoupler? Could it be from the integrated output control circuit?
When green wire is connected to ground then Power supply turns on
If it is short circuited with black wire it will keep PSON command pullled down
Check voltage on green wire, it must above 2.5 volt
If there are 2.5 volt and power supply remains on, then trace the circuit might be power supply supervisor ic is problematic
In case you are unable to find 2.5 volt or above on green wire
Then trace 5 volt standby section (purple wire and related portion to green wire)
@@HaseebElectronics Thanks but I check voltage on green wire and is 0 Volt.
ATX power supply, but it never turns off, with the fan always running without being connected to any motherboard
Haseeb I have no stand by voltage can you please help me identify which component is fail on that circuit. I have voltage on stand by ic and input of 5v transformer but nothing after that no voltage on the cold side at all. Thanks
can you please send me the part number of switching ic
Sir schematic digram download website name tell him
Any idea what causes 4 diodes to fail at the same time?
Happy New Year!
sometimes high frequency spikes having larger time period reach with line voltage and if there is no input filter EMI/RFI filter, and the spike width is larger than the diode's allowed limits, then
in first half cycle one pair burns out and causes to short circuit at bulk capacitor
if the fuse burning time is slow, it will case to damage the other pair as well
now the main ac is directly connected to bulk polarized capacitor
now there are 2 optiona
1. fuse have to blow away. OR
2. Main DC capacitor and next all circuit have to be damaged
@@HaseebElectronics thank you sir. A very detailed explanation.
welcome and special thanks
it is my pleasure
sir i do have ATX power supply, in which ps on green wire have 4.0 volt but when i short green to black , no witching and fan not spinning, i open tested bridge rectifier ok out put got 330 volt dc, same voltage i am getting on output capasitor which is 450v 180uf....what do you think have solution?
i got my reply , my sb or sv voltage is available but 12 volt for signal transformer is not available...now how to Repair that one sir?
i got answer at your video 18:23
indeed I am happy to listen that all replies for your questions were in my video, it is my pleasure
Check resistor 10 ohm, check dioda zener,
Lk 60 ♥️♥️♥️
thanks a lot. best wishes
Respected sir, can you tell me possible to make a adjustable power supply( voltage and current need to adjust) by using this type atx power supply ? Please reply.
okay dear
i noted it and i will try to do it practically very soon
Thank you so much sir. Waiting. 🙏
I'm thinking to buy one of those Power supply Sir cause I don't have it. Can these handle 10A ?
yes these can provide 12V 16 Ampere