{528} How To Repair SMPS || SMPS Repair Step By Step || Switch Mode Power Supply

[@Choober65]

Wa-Alaikum-Salaam. I am an Electronics Engineer of many years fault finding. One of my specialities is SMPS and this video is the best of its kind on the internet. Very comprehensive and informative. Thank you for imparting your knowledge to others in such an easy to understand format.

[@Majidtinfo]

kzbin.info/www/bejne/pqLIk2lsrdeemKcsi=oCJNIGWVGB6b6JtF

[@Brijesh8080]

I have a compact logic power Supply of AB. I am facing shutdown problem i.e. on/off problem. What should be the issue with it..

[@CinematicTouchProductions]

This is my first time seeing your video/channel and I have to tell you I am very glad I came across it. I have seen other channels on electronics repair but you stand out. You put the word "teach" in "teacher" you have the right formula for teaching, you are very easy to follow,understand, knowledgeable, you demonstrate very well and are not boring! You are a gift to us all and I'm sure I speak for all we are fortunate to have you dedicate your time and effort to have you do this for us. Thank you!

[@goutammukerjee6229]

I think really I am fortunate to get a technical teacher like You, how I convey my regards to You, God knows, really as per words right now I become capable to repair the SMPS, Sir one more request for PFC Power supply, if possible kindly upload a video of PFC Power supply, like this video , thanks a lot with regards

[@HaseebElectronics]

best regards and special thanks for your valuable comment it is my pleasure sure i will discuss PFC based power supply

[@nujgallo9706]

@@HaseebElectronics sir how to check uc3842 if it working or its bad.? Thank you

[@TYGAMatt]

This is the best explanation of smps on the Internet. Thank you Sir

[@HaseebElectronics]

it is my pleasure thanks for your valuable comment

[@TYGAMatt]

@@HaseebElectronics It is thanks to your hard work and very clearly explained videos that I have managed to fix several smps units, so you have increased my knowledge AND saved me money :-) thanks!! Matt.

[@Khate.ghermez]

خیلی ممنونم جناب مهندس گرامی این کار شما نشان از بزرگواری و انسانیت و انسان دوستی شما هست مطمئنا روحی بزرگ در بطن شما وجود دارد Thank you very much engineer Thank you for farsi language ( subtitle farsi ) You have a great soul You are an honorable person I can't thank you enough with any words 🙏🙏🫶🫶🫡🫡

[@leonamil2567]

Thank you for sharing this educational video may ALLAH gives you more blessing.

[@HaseebElectronics]

So nice of you

[@andreiramos4362]

I am Latin but I understand English a little. Thank you for giving us time. God bless you

[@HaseebElectronics]

most welcome and thanks for appreciating my efforts you can watch my videos by turning CC on from your mobile and select auto translate as well

[@draganradakovic]

best explanation of SMPS operation I've seen so far. congratulations sir

[@HaseebElectronics]

thanks a lot it is my pleasure

[@williamlynn9670]

Thanks for your clearly explanation to everyone. Really appreciated.

[@HaseebElectronics]

Thank you for your appreciation. best regards

[@radio-ged4626]

Extremely thorough and accurate description and demonstration of a SMPS circuit. Very good to watch.

[@HaseebElectronics]

it is my pleasure i am thankful for your valuable comment

[@Zaikonkibahar]

Masha Allah. Great and Very Usefull Information Very Well Explained. Thanks For Sharing

[@HaseebElectronics]

thanks a lot dear sister

[@MuhammadAdam-mn9qb]

Thank you brother Haseeb

[@HaseebElectronics]

You are most welcome

[@danielugwa6517]

sir I don't know what to say you are awesome. may almighty chiukwuokikeabia the God of heaven bless nd bless nd bless nd bless you and your family. as you give to us freely that which we seek for freely. May heaven give to you that which you also seek for iseeeeeeeeeeeeeee

[@HaseebElectronics]

please accept my best regards ❣️ and special thanks for your valuable words ❤️

[@hamzehkamrava9071]

سلام علیکم و رحمه الله و برکاته.. Hello ... Your training as a Muslim brother is a source of pride. I benefited from your training. Good luck bye . 👍🏼🤝🏽🤲🏼

[@HaseebElectronics]

و علیکم السلام thanks a lot dear brother

[@gitongakirigia6046]

Dear Engineer Haseeb, Allow me to refer you to the above tittle.Sincerely you are a blessing to many through your detailed video courses online. Let me confess that the far I have reached in electronics repair is attributed to you through the glory of God. I had real problems with smps, opto couplers, switching ics and you can bet now am well equpied through your tutorials. I am from Kenya , Meru county and named Gitonga kiogora. Receive my gratitude and may God bless you more .

[@HaseebElectronics]

best regards and special thanks for your valuable comment it is my pleasure that my efforts are beneficial for my viewers please accept my best regards and wishes

[@gitongakirigia6046]

Am grateful. Kind regards

[@govindjoshi6218]

Please share your mail id

[@boybravo689]

Very good trouble shooting technique sir tnx for the video

[@HaseebElectronics]

it is my pleasure best regards

[@rawjusticeman3128]

Now I have a better understanding of how to approach a SMPS fault logically. A big thank you to your video.

[@HaseebElectronics]

most welcome dear

[@weiaungweiaung]

ဆရာ မိုက်ခရိုကွန်ထရိုလာ အကြောင်လေလားချင်ပါတယ် ကျွန်ပ်ကို သင်ပေးပါလားဗျာ.

[@sitaramasastry8617]

very good explanation . your practical aproch is good . . you are a good instructor

[@HaseebElectronics]

Thank you very much!

[@gomezaloysius]

Hi Sir, I am not an electronic guy but I do open up all faulty devices, only to check for any blown fuse. Your videos are so detailed and inspiring. I was looking for a video to run a aircon blower fan without the controller board but accidentally came across your video. May god bless you for your great unselfish sharings!! You are super teacher!!

[@shamssham828]

❤️

[@augustojoa2496]

Thanks Haseeb. I am very grateful for your valuable instructions.

[@HaseebElectronics]

You are most welcome

[@petsathome7091]

Masha’allaah soo informative very good 👍🏼 work 👍🏼👍🏼

[@HaseebElectronics]

thanks a lot best regards

[@actechtelugu3063]

Dear sir this is ultimate in smps What a wonderful explanation You are the greatest person in electronics field Thank you very much Sir

[@HaseebElectronics]

You are most welcome best regards and lovely thanks

[@ikbalalraiksu1030]

MasyaAllah, really get perfect mentoring from, Allah bless you brother

[@Majidtinfo]

kzbin.info/www/bejne/pqLIk2lsrdeemKcsi=oCJNIGWVGB6b6JtF

[@longmarch26]

Thank you very much for teaching us these things clearly. Learned a lot from this.

[@HaseebElectronics]

You're very welcome!

[@oznewton867]

I am loving the way you explain electronics. You have answered so many questions I have had for many years. Thank you so much for producing these videos..

[@HaseebElectronics]

You are so welcome!

[@Dailymailnewz]

@@HaseebElectronics CAN YOU DO ONE VIDEO ON NXP UBA2012T chip how it works etc, mostly found in philips ballasts

[@ghulamfarooq6963]

Wa-Alaikum-Salaam. Dear thank you for Very good informative video.

[@HaseebElectronics]

So nice of you

[@godfreydesilva5222]

This is an excellent video with loads of Technics and details. Well done Sir.

[@HaseebElectronics]

best regards and special thanks

[@ssvlogs7392]

Bahut hi acche aap technical teacher maloom hote hain very good

[@HaseebElectronics]

thanks a lot best regards

[@shrikantbhaibhosale]

Thanks for this video, You are great teacher,

[@HaseebElectronics]

You are welcome! best regards

[@shrikantbhaibhosale]

@@HaseebElectronics Dear, Just now i send msg on whtsup, pls rply

[@chinni1980]

Many more thanks About SMPS explanation sir very good classes.

[@HaseebElectronics]

You're most welcome

[@farukrabbishoud1138]

Allahumma Barik Laq. Wish you are my teacher. Love from Bangladesh.

[@kiengweegheu8163]

I finally found my online teacher. very very detail explain. thanks teacher spending time on explaination. will keep watching your video.

[@HaseebElectronics]

You are welcome! i will suggest to watch video number 592 that is related to the same subject, you will find it valuable

[@bharaths9479]

First ever channel to reveals the SMPS best. Thank you so much Sir. Thanks for your great effort and time.

[@HaseebElectronics]

Thanks and welcome

[@ZACZELDA32]

good evening, thank you in advance for all the courses and indications you published to help people understand how the electronic cards work, my problem and as you explained is in the power supply of the relay resistor to get the 220ac to the rectifier bridge, the resistance takes the line from the zener diode which in turn is connected to an ic....thanks in advance for everything

[@jecoblevi339]

This is perfect explanation of fault finding process!👏 👏

[@vijayakumarkumar9190]

Very good and useful information sir thanks for sharing this knowledge to us

[@HaseebElectronics]

best regards and lovely thanks Happy new Year

[@tinochoolun4397]

waoh great last year i have view your vdo for the first time and every day i looking for many thanks sir

[@HaseebElectronics]

You are most welcome

[@HeroHero-vg2sd]

Good teacher. I wanna be good good electronic technician lik you.

[@HaseebElectronics]

Thanks and welcome wish you the best of luck my dear friend

[@mohamaddhaybi1617]

You are a great teacher sir.. I am very lucky and thankful that I have found and subscribed to your informative and wonderful channel. I really enjoy your explanation of how everything works together. I am entering every publication link shown during the video trying to return you the favour even if it is just a little. Hope everybody does so. You deserve the best❤

[@valakatz3967]

Thank you for your excellent video. I have not seen a better video about SMP supplies than yours. Have a great day!

[@HaseebElectronics]

best regards and special thanks for your valuable comment

[@andreiramos4362]

Your are a good person. God bless you.

[@HaseebElectronics]

Best regards 💕

[@abdelhamideai4798]

Hello dear hasseb thanks bro for all your advices, I'm biomedical engineer from Morocco I appreciate your work, in my daily work the most problem I find in medical devices: power supply

[@abdelhamideai4798]

I'm working now on a power supply of medical lamps input 24vAC/24vdc output, there's no output I checked all components , even flayback ics I changed 1252A ( primary ) ic and 4303A (secondary)ics and MOSFET too but no output in pin 6 (Drv pin for 1252A ic)

[@airmailman1971]

What a great instructor! Thank you for this video.

[@HaseebElectronics]

best regards and special thanks

[@aminushehudanhassandanhass1792]

detailed and explicit, thank you and God bless you more.

[@HaseebElectronics]

Best regards 💕

[@RajChacko]

The best step by step video of SMPS troubleshooting. Subscribed!!!

[@HaseebElectronics]

thanks a lot it is my pleasure

[@ravindranemade9205]

Really great u.teach me to finding fault inmy smps.thanks again .

[@HaseebElectronics]

Always welcome

[@djbaklastech]

I like this video so much.. Much interesting

[@HaseebElectronics]

Many many thanks

[@ComputerExpert1]

So much informative video thanks for sharing sir

[@HaseebElectronics]

thanks a lot best regards

[@mriyan-wl2ce]

Sir Allah pak bless u many many happiness u r great & proud able man....

[@HaseebElectronics]

thansk a lot stay blessed

[@gopalraovellanki9826]

Namaskaar Haseeb bhai 🙏 In this one hour video you have covered almost every probable fault in the SMPS circuit and how can we check and rectify the problem. This video is very very informative and useful for Technicians. Thank you very much 🙏

[@HaseebElectronics]

thanks a lot dear it is my pleasure

[@manoranjansahoo1932]

Dear sir I am very grateful to you.i have an electronic Repair shop.l watch your video and learner a lot.Though I am not earning too much.but it gives me job satisfaction.so sir l would like to thank you again and request you to keep it up God bless u sir

[@HaseebElectronics]

You are most welcome

[@heshamkatr2128]

Proud to see your elaboration my best wishes toy you, maa shaa Allah

[@HaseebElectronics]

best regards

[@abcabdi8523]

Thank You Very much Sir! The Lesson is very very helpful.

[@HaseebElectronics]

it is my pleasure

[@KhairilHamid-mt8qv]

Waalaikumussalam ya Akhi.. thanks for sharing.. need to listen a few times before attempting to repair my SMPS.. Problem: No 12Vdc output voltage.

[@williel.morris4492]

The Best Teacher, in Electronics on You-Tube..!!

[@HaseebElectronics]

thanks a lot and best wishes

[@mangeshsonar3317]

Sir given very nice knowledghe thanks a lot 👏👏👏👏👏👏👍👍👍👍👍👌👌👌👌🌹🌹🌹🌹

[@HaseebElectronics]

it is my pleasure best regards

[@gampaha1861]

I am still thinking how much knowledge you should have to explain all that in such a simple way

[@Takismeteo]

Thanks a lot for your kindly offer of your knowledge. I do not think that it could be a better presentation. You helped me a lot to understand the circuit.

[@HaseebElectronics]

You are welcome!

[@AnthonyAnakapu-bm3ui]

SIR,Your Tutorial Videos on SMPS Repairs and Testing Faulty Areas with the Schematic Diagram Use is a very great help to me on my Electronics Study Course I am still studying to Master in Electronic Engineering Career...SIR Thankyou..Anthony Anakapu..Online Student on Electronics + Electronic Engineering Studies...

[@kahlid-ataya]

النوع المفضل لدي من الفيديوهات المليئ بالتفاصيل 💯💯💯💯💯

[@HaseebElectronics]

أنا ممتن لتعليقك القيم وشكر خاص لدعمكم. بارك الله فيك أخي الكريم. كل عام وأنتم بخير

[@abdulrazakchokli9496]

grateful tutorial i never see yet thank you sir God bless you

[@HaseebElectronics]

You are very welcome

[@tokyogentleman]

awesome job! i am fixing a macbook fake chinese charger that i bought off ebay that was broken. they used the same circuit! there was a few burnt components that i was able to replace., thanks bro!

[@HaseebElectronics]

you are right chinese copy method is really wonderful, they mold cheapest designs to replace costly branded items. problem is that while repairing we cannot find their servicing documentations

[@maythammohamed9125]

u are the best one in youtube

[@HaseebElectronics]

sepecial thaks best regards

[@nasirzamanawan.3485]

Jazak Allah o khair sir,.Good explain..

[@HaseebElectronics]

best regards اگر ممنکن ہو اور ٓپ میری تمام ویڈٰوز اردو میں دیکھنا چاہیں تو میرا اردو چینل (haseeb eectronics urdu) دیکھ لیں وہاں میں اپنی تمام ویڈیوز اردو میں شیئر کرتا ہوں

[@sreekanth369]

Very Nice Video Sir Gi., Thank You Very Much ... Sreekanth, Hyd, India.

[@HaseebElectronics]

You are most welcome please accept my best regards

[@sccscc5914]

Thank you so much God Save And Bless you and your family

[@eduardomencias5191]

You explain so well sir.. I salute.. I learned a lot

[@babydust2me205]

Ur right derrick bwalya I am blessed that I found this videos of sir haseeb, He makes simple those complicated things in electronic repair God bless you

[@HaseebElectronics]

i am thankful for your valuable words best wishes

[@barryw.9419]

Many thanks for this excellent informative video, and sincerely instrumental in providing immense better understanding of the systematic breakdown for fault diagnosis! I greatly appreciate the video diagnostic presentation was exceptional from start to finish including the specifically identified test points and polarity, and the concise detail of the expected test result and in depth attributing fault factors or the secondary outcome by a specific fault. I myself was working on lawnmower 120VAC/24VDC charger no output @ primary transformer. On this charger JSC-1056A in lieu of UC3842 (by your application), this charger has has Texas Inst. 28600D controller on the Hot (primary) and dual LM258N Op Amps on the secondary. No surprise your presentation is near exact similarly bang on in layout. My fault specifically falls at open "T1 input and as you called it; the finding was "shorted diode" D1 , Resistor R11 @ tests high in circuit (spec..27ohm). Whereas resistor R3 tests "shorted" @ 46k ohms expecting spec. @ 420 M ohms (Q1) Mosfet SSS7N60B tests good in or out of circuit but.... I found; "what looks like" carbon diode identified on PCB as "RB1" in series with mosfet "drain" to T1 transformer unfortunately it does not have any visible markings and appears shorted along with indicators of overheat on PCB. Both diodes on T1, T3 primary "hot" thus I suspect controller is presumably dead though Input portion including Bridge AC/DC tests normal and all diodes test okay. Is schematic layout reference "RB" like a carbon scrubber resistor??? The problem with this board layout they utilize both glass, and standard diodes and also alternating smd or through hole diodes. The RB1 with no markings although it's carbon and look like diode; it has "O" resistance, no polarity indicator or markings thus it's guess it is only intended as scrubber but the focus I suppose should be diodes, resistors at T1, T3 since mosfet gate signal source signal appears correct @ 160v, likewise at Main Cap (-). again many thanks!

[@gregwoolley]

Fantastic! You are a great teacher, I enjoyed your video very much. Thank you!

[@nitantkatyal8202]

Mashallah great 👍 video sir... keep on the noble work sir

[@HaseebElectronics]

best regards and special thanks for your valuable comment

[@nitantkatyal8202]

@@HaseebElectronics RESPECTED SIR , KINDLY MAKE A DETAILED VIDEO ON TOP 265VG, IF POSSIBLE...LOVE AND BEST REGARDS...

[@engineeringtechnologybd1336]

Thanks for like this video, after long time I have been find Such a KZbin channel where I am learning everything very easily. I pray for you and also I am grateful on of you for to teach us right way. Thanks a lot.....

[@HaseebElectronics]

most welcome dear brother stay blessed i will suggest to check video number 592, that is very useful video as well

[@muhammadtamoor2596]

Useful and practical information.

[@HaseebElectronics]

thanks a lot

[@معكتاب]

Very good lesson we learned here and everything I suspect you have discussed very well actually I was looking for this topic which take both theoretical and practical analysis. My question now sir we know all the things we should do to test SMPS but we want to know what things we shouldn’t do to prevent more damage to the SMPS and thanks again for your gorgeous lessons.

[@DavisonMaduku]

Very clear and comprehensive, you are good.

[@hadjnabil4811]

وعليكم السلام ورحمة الله وبركاته جزاك الله خير,god bless you and all your familly and your contry. have nice day Sir.

[@HaseebElectronics]

thanks a lot for your valuable words Allah bless you and your family

[@amjadhussain3399]

excellent explanation got much information that was unaware about

[@muhammadishtiaq24]

Excellent experience shared thanks for sharing this informative video

[@HaseebElectronics]

thanks a lot

[@grumss9248]

Thankyou for all of your very good advice and tutorials on this subject of smps, you are a special person to help others with your great knowledge :)

[@manualspellcorrect9073]

I concur.

[@HaseebElectronics]

it is my pleasure please accept my best regards for your valuable comment

[@arunkumar-bh2dp]

very clear explanation of smps

[@HaseebElectronics]

it is my pleasure special thanks

[@abdulzaheed5272]

Wa aleikum salam varhmathulla...jazzakallaha kairan

[@HaseebElectronics]

best regards and special thanks

[@ThermaLTake94]

Im so glad you are willing to gift us this knowledge,i like that you have not a script and sometimes in the video we may thing "why doesnt he analyze what he is saying right now and he is changing the subject".but every time there is a solid reason you are going to another direction on the discusion before we can understant what you are currently saying,greetings from GREECE keep up the good work

[@clivemurray3433]

love your power supply trouble shooting.🙏

[@HaseebElectronics]

thanks a lot for your valuable message

[@twesiimegyaviira2695]

i have been watching your troubleshooting and repair techniques you are real professional scientist and great technical teacher i have liked your videos. if all engineers were like you we would be far. may be you may give example of power supply of battery chargers 5volts using one transistor , one zenner diode in hot section and oner zenner in cold section no output power and in hot section power fluctuating waiting your response , i thank you

[@afeefali5947]

شكرا جزيلاً لك و جزاك الله كل خير اخي الكريم و ارجو من الله ان يتقبل منك عملك و يجعله في ميزان حسناتك

[@HaseebElectronics]

اللہ یسلمک و یسعدک۔

[@christophersmith-zn2kn]

Best explained video I've seen so far, very easy to follow keep up the good work.

[@HaseebElectronics]

best regards and special thanks for your encouraging words

[@christophersmith-zn2kn]

@@HaseebElectronics good evening. Do you mind if I ask where is a good place to get the schematics for smps's please.

[@hemchandmoosun4467]

Very good explanations on schematic diagram like a pro 👍 You're too good SIR 👍

[@aayesha6227]

thanks for sharing very informative video sir❤❤

[@HaseebElectronics]

Always welcome best regards

[@gauripartapshanker9197]

This vedeo is very very knowledgeable vedeo. This vedeo cover all foult solutions in smps Repairing. Thank you so much God bless you. Happy new year.

[@HaseebElectronics]

You are most welcome it is my pleasure Wishing you happy new year

[@کیوانکیانیخواه-ل8ك]

اموزش بسیار خوبی بود خدا همراهت باشه

[@HaseebElectronics]

از نظر ارزشمند شما سپاسگزارم تشکر ویژه و بهترین آرزوها

[@humbertucho2724]

Excellent troubleshooting, many thanks

[@HaseebElectronics]

most welcome dear thanks for your vauable words

[@HeathenGeek]

I must admit, when you said 'it's best to watch the whole video' my heart sank. But 55 minutes in and that was gripping af. An excellent vid sir, thank you for sharing your knowledge 😎

[@HaseebElectronics]

it is my pleasure that my efforts are considered valid. thanks for your valuable feedback

[@Meraj-zr2ry]

You doing well. Make it simple. This switch mode power supply is a Pulse Width Modulation (PWM). The PC431 optocoupler is used as feedback to continually regulate the rail. R12 is a kick-in resistor to turn on the ic. C3,47uf/400v filter capacitor will rate high than the supply voltage when is fully charged, even if is out of the circuit. I am not sure why you Multiply it by 1.414? You use a pro-RMS meter so it should calculate it itself. EMI circuit is to comply with international standards. CE, US, Ca, Au/Nz, etc.

[@HaseebElectronics]

best regards for a valuable comment

[@philipscharles1333]

sir im learned lot from you sir the videos are very good and informative no one can teach like you this is the first time i understand electronics properly because of wonderful teacher like you sir thank you so much sir.philips from chennai india.

[@HaseebElectronics]

Thanks and welcome

[@شهرام-ص1ط]

برنامه خوبی بود،و ازاینکه بزبان فارسی زیرنویس فعال شده بودبسیارجذابیت داشت لایک وسابسکرایب انجام شدو منتظر برنامه های خوب شما هستم،خسته نباشید

[@TheSwadeshkumar]

Thanks for give us valuable knowledge of smps power supply Very simply

[@HaseebElectronics]

Most welcome

[@vloggerAbhaypathak1]

Great upload Very knowledgeable vdo

[@HaseebElectronics]

thanks a lot dear friend

[@Hardeepsingh-re8xn]

great vedio I am glad to see it, very informative thnk u sir

[@HaseebElectronics]

So nice of you

[@waltschannel7465]

Your explanations are very clear. Now to apply what I have learned! Trying to repair a TV power supply, or determine it is not at fault. The problem may be caused by overload of the SMPS. I am in the USA, so I adapted your 220 volt input to 120 volt input. Thank you for telling us that the formula for voltage at the hot side filter cap is 1.414 times the line voltage.

[@HaseebElectronics]

i am really happy to see your comment it is really a valuable asset for me i will suggest to check video number 592 that is very useful for push pull power supplies

[@DrTRonik]

_Great_ ... _As always_ ... _Thanks for sharing_ ...

[@HaseebElectronics]

special thanks and best regards