{749} SMPS Is Not Working || SMPS Not Turning ON

[@electrolatif]

First KZbinr he explains very well how to repair, you are good teacher Thank you very much 🥰

[@HaseebElectronics]

You are welcome

[@ddistrbd1]

I absolutely enjoyed this video, I'm a 68 year or newbie with near zero knowledge of electronics and yet I followed this video all the way to the end which is a testament to your ability to teach . well done.

[@garymucher4082]

Bravo, a typical troubleshooting section when you know what you are doing. Problem is, a lot of techs just don't have the vast knowledge to know what they are doing and they shotgun their approach until they luck up on the defective part(s), if at all. I like troubleshooting circuits. It is like a mystery story as to who done it! Thumbs Up!

[@yalcnsoner5712]

Tum videolariniz gibi bu videonuzda akici ve ogretici hocam .yorumlar kisminda pakistanli oldugunuzu okudum.ben sizi katar yada suidi oldugunuzu tahmin ediyordum.hic. farketmez sizin gibi bilge ,mesleginde cok iyi olan insanlari izlemek ne guzel.Turkiyeden selamlar ( essessellemun aleykum.verahmetulla)

[@HaseebElectronics]

Ve aleyküm selam sevgili kardeşim. temelde Pakistanlıyım ve şimdi Ürdün'deyim. Mühendislik hayatımdan edindiğimiz tecrübelerimi paylaşıyorum, belki izleyenlerime bir miktar bilgi sağlayabilir. en iyi dileklerimle ve tatlı selamlar kardeşin Muhammed Eşref

[@mrapple7187]

جزاکم اللہ خیر Sir Every time I think I need a teacher who teach me like this.

[@hardianprastyo923]

Same problem and yes, i replace the transistor and resistor it work again. Thank you so much, you are great!

[@HaseebElectronics]

it is my pleasure

[@gordonlovett71]

Awesome job there buddy. Now I can dig out some of my failed power supplies and see what's wrong with them.

[@karlwalton4953]

Really Good, thanks for going through this and sharing your detailed experience of the layout and all the likely fault. Very helpful

[@HaseebElectronics]

You're very welcome!

[@rosyidin2842]

Assaamualaikum wr.wb....Saya dari Indonesia selalu siap menonton tutorial dari anda..sangat bermanfaat ilmu yg anda sampaikan...sukses selalu ya buat anda...semoga berkah segalanya ..Amin...!!❤❤❤

[@HaseebElectronics]

wa alaikum salaam, terima kasih banyak saudaraku. Allah memberkati Anda

[@NajmakiRasoi]

MashaAllah bhut zabrdast information Allah bless you and your family Amin

[@HaseebElectronics]

thanks a lot dear sister

[@Fardeenfarwest]

AssLamualaikum Warahmatullah ibarahkhatuhu. Very good explanation and educative also. Jazakumulah KHAIR

[@HaseebElectronics]

wa alaikum salaam wa rahmatullah wa barakatohu

[@W1RMD]

They spared no expense with their use of heat sink compound! It probably won't fail anymore. Thanks and happy Monday!

[@HaseebElectronics]

best regards and special thanks for your valuable comment

[@afayimo]

Masha Allah... Very knowledgeable. very very good Teacher.. Salam from Germany.

[@SonnetGomes]

Brilliant troubleshooting. Love your videos. I watched so many of your videos is Awe, and learned so much. Thank you so much for posting these.

[@HaseebElectronics]

Thanks for watching!

[@roshnivaldar2746]

Well done , engineer with the knowledge how powers supply work and your on faulting is very methodical. thankyou

[@arrafiingoprekz6003]

MasyaAllah brother thank you Your explanation helped me so much Cheers from Indonesia May Allah Bless you

[@hdl4259]

Very well done my friend, it is nice to watch your skilled work.

[@englishrupe01]

Really helpful troubleshooting and explanation.....many thanks.

[@HaseebElectronics]

best regards

[@lakshminarayanans6767]

Well explained. Can easily be understood. 👏👏

[@HaseebElectronics]

it is my pleasure

[@chinnarao326]

Resp Sir! Excellent Class Dhanyavaadh Sir. -- ChinnaRao

[@HaseebElectronics]

THANKS BHAI JI

[@chinnarao326]

Sir Thank U Sir

[@k.pathirana.8868]

👍🙏.Sir, excellent . My congratulations.

[@HaseebElectronics]

Thanks and welcome

[@amirarsalanhoseinkhani]

Thank you very much for the educational and interesting videos you make ❤❤

[@rahulpatelgujratahmedabad3497]

GOOD TICHING KARTE HO AP THANKS 👍👌👍👌👍👌👍

[@HaseebElectronics]

thanks a lot

[@electroniquepassion]

Useful video 👍👏👋

[@HaseebElectronics]

best regards

[@dannye5335]

Excellent video. I enjoy your repair techniques. Do you do any repairs on Crt tvs? Specifically no high voltage from the horizontal drive section is what I would like to learn more about.

[@tahir4010]

Thank you for making such informative videos

[@garn6223]

Thank you very much sir 🙏🙏🙏

[@HaseebElectronics]

best regards

[@gauripartapshanker9197]

Informative vedeo. Thank u so much.

[@SonnetGomes]

Thanks!

[@HaseebElectronics]

i am thankful for your valuable support

[@nicoschadjidemetriou4373]

Excellent quality and educational video. BRAVO and thanks my dear friend.

[@HaseebElectronics]

best regards

[@fuzzs8970]

Hello my friend. Thank you very much. What is the multi meter that you were using? Seems to be very nice one

[@HaseebElectronics]

best regards it is Aneng Q1 multimeter

[@HaseebElectronics]

you can check video number 470 for more details

[@thindelectronics8216]

Good morning sir very nice video good information thank you sir 🙏

[@geraldfactor5781]

very informative 👏👌

[@HaseebElectronics]

thanks a lot

[@fuzzs8970]

Thank you again for your videos. Just maybe a slight correction resistor don't short circuit. I may be wrong of course

[@Docbill57]

Thank you, sir. Very well explained.

[@FLomasterZ]

5:55 Nice desoldering iron. Have you video about it?

[@HaseebElectronics]

best regards it is WELLER WR3M kzbin.info/www/bejne/ppulqWp8Yq1jiac

[@sinisaradosevic6794]

Great video.👏👏

[@HaseebElectronics]

best regards

[@vijayakumarkumar9190]

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

[@HaseebElectronics]

best regards

[@1kimdotcom]

another excellent video😍

[@felipetomaz1843]

Hi, great work you have done! Do you have fixed some SMPS with the oscillator 1200P60? Could you please explain How does it compare with the family 3843? Are they interchangeable? Thanks a lot and have a nice day. Regards.

[@knowledgehub872]

Really great video... Keep it up brother

[@HaseebElectronics]

Thanks a lot 💕

[@muhammadishtiaq24]

Excellent thanks for sharing this informative video

[@HaseebElectronics]

THANKS A LOT

[@mehmeteminakbaba5683]

Merhaba,bir sorum olacaktı,st13007,TL 494,c1815 transistörleri değiştirdim.Kapasitorleri,dirençleri,diyot,zener diyotleri ölçtüm hepsi sağlam.Fakat büyük smps trafosu gürültü yapiyor.Cikistan 7Volt alıyorum.Arizanin nerden kaynaklı olduğunu yazabilir misiniz, teşekkür ederim.

[@susantaatha6468]

Thank you for beautiful knowledge sharing.

[@HaseebElectronics]

it is my pleasure

[@adophmadondo7660]

You are the baddest, thank you so much

[@HaseebElectronics]

Thanks a lot for feedback

[@fadlibrahim8654]

Hi , Your explanation of the lesson is very interesting and we enjoyed it ، which name and model of this desoldering you used please?

[@Yorumcu63]

Great video also have great tricks My question is about PWM controllers have some protect features (for example over voltage Protection etc) How understand pwm controller's in protect mode ? Because not working power supply and all other components looking normal. For example how can make "Troubleshooting board for IC" * We can try extarnal power supply voltage for PWM controller * We can apply suitable frequency and wave to need IC pin/pins for find problem Could you make a video for a famous PWM controller's "How understand PWM controller's protect mode"

[@ajayisamuel6448]

Thanks for sharing. Very insightful sir

[@Crystalservices]

Great information Thanks for sharing 👍

[@HaseebElectronics]

best regards

[@gopalarao8578]

Hi sir namaskaar. This video is very informative. Can we check the output of the ic TL 494 before replacing the transistors. Thank you sir 🙏

[@HaseebElectronics]

yes we can i will explain that we can check drive without transistors

[@abdulhameedtaiwo1003]

Nice video and well educative. Are you living in Dubai?

[@PeteDubler]

Vrey well done. You first checked the voltage across the two large filter capacitors. How would you proceed if the voltage is not symmetrical across theese? (Zero volts on one of them)

[@sukhdeosingh617]

Thank you very much Sir for your valuable information. Sir in this ckt Opto coupler is not used then how the feed back is working to control the output

[@HaseebElectronics]

it is secondary side pwm controller. it uses direct sense line to the PWM controller voltage mode error amplifier. it uses pulse transformer to drive the power driver stage, so pulse transformer provides isolation

[@zaldydeleon1946]

Brother i am sorry to ask question out of your topic but maybe u are the right person to ask....wht is the use of impedance sel. at the back of my Sony amplifier thnks a lot Bro for ur time .

[@fatih81]

Güzel anlatım beğendim takipteyim dost Pakistan a selamlar

[@HaseebElectronics]

en iyi dileklerimle ve özel teşekkürler

[@VijayVijay-p7l]

Thank u for giving explanation

[@genevasimmonds8208]

Nice easy to understand video

[@nelsoncarmengomez7416]

Uso subtitulos al español,proscatinador en el ingles, pero te entiendo de todas maneras. Me gustan tus videos. gracias compañero.

[@HaseebElectronics]

Buenos días. Estoy agradecido por tu hermoso comentario. mantente bendecido y que tengas un buen día

[@sujitchatterjee5434]

Thank you so much for great informative video

[@azhar6713]

Thanks a lot for your videos, I really interested in Electronic. And I also sent an email to you for a help.

[@jalal76]

great job ....... thanks

[@HaseebElectronics]

thanks a lot dear brother

[@ClbnaVGM]

Good video thank you !

[@Versatiledani]

informative sharing

[@HaseebElectronics]

best regards

[@ziadfawzi]

Thank you so much.

[@Dc_tech386]

Good night sir I have a few questions the diodes or they connected to emitter and collector and what what or the amperage ratio of the diodes because I want to ad Shockley diodes to my emitter and collector for spike reduction so I want to know if a 1 amp Shockley diodes can withstand the incoming high current of of 200amp to collect so but I can’t find a small diodes the can handle that much current so I want to know if the 1 amp is ok I don’t want to blow up my circuit to find out

[@francospagnolo1385]

Thank you very much

[@HaseebElectronics]

You are welcome

[@anurasenarathna1703]

Saved from land fill. Good video.

[@alhassanomran244]

Dear brother, thanks for your great explanation and informative videos. I have a 24V SMPS that gives fluctuating output between 4-7 volts and it uses TL494, I check VCC and it was 7.3V, feedback is 5V & Ref is 5V. Pin 8 & 11 are fluctuating and the freq is not stable. What else shall I do to fix it? Your help is highly appreciated.

[@lucasrocha4329]

Seek for shorted componentd in the cold side.

[@homemade-it2495]

kzbin.info/www/bejne/j5O4l6eCqtuCesk

[@lawaljimoh9837]

Hello, thank you please make a video on how to differential between transistor and MOSFET and how to test each of them with multimeter. Thanks

[@martinkuliza]

This is honestly something you could google 1. MOSFET's are Transistors 2. Transistors have 2 main functions to be a switch to be an amplifier (they have forward gain) Look at the datasheet 3. Transistor pins are BASE, COLLECTOR, EMITTER 4. MOSFET's and JFET's Pins are SOURCE, GATE , DRAIN Here is how to test them kzbin.info/www/bejne/aHrOcoOLbr1mac0

[@craftymulligar]

Good tech skills.

[@Habibulla.M]

Very informative

[@Watch__This_]

Great video....

[@HaseebElectronics]

thanks a lot

[@swapanmahata7499]

Where to buy this type desoldering iron as u own??

[@HaseebElectronics]

it is available online its model number is WELLER WR3M rework station made in germany

[@asharsumari9313]

Thank you sir

[@HaseebElectronics]

best regards

[@bophaheang6589]

For ic ka7500 between vcc and Gnd how many voltage that it is good?

[@HaseebElectronics]

foe TL494 AND KA7500 8 VOLT TO 35 VOLT ARE NORMAL in most of the designs it is between 10 to 24 volts

[@DavidTorres-kl2rt]

very good video hallo from mexico

[@HaseebElectronics]

most welcome and special thanks for your encouraging feedback

[@audiokees4045]

Waren de npn transistors geheel defect of maten ze slecht?

[@sunil-S-420]

Nice video👍

[@HaseebElectronics]

best regards

[@ideiasnuncaed4595]

Obrigado amigo muito bom seus vídeos tô aprendendo muito

[@tapeshkumarsanyal2785]

I have a zbronics computer power supply having PWM controller HC8012 bx16. The ic gets damaged(VCC to ground short ).I can't find it any where.Is there any substitute?🙏🙏🙏🙏🙏🙏

[@mhnabin302]

Can you make a video on making one smps dc power supply with every details and breakdown, and items used and where to purchase. A video no one ever made, a class no university ever taught. Thanks

[@mitropoulosilias]

it is not easy thats why... and involves high lethal voltages.. better buy one

[@HaseebElectronics]

welcome brother first of all i am thankful for your valuable comment second thing. that a power supply design is complete science and it needs a very long, deep and interconnected to each other calculations. so it is really near to impossible to cover this topic in one video. because each step, each component. each parameter needs scientific calculations, so it will much difficult to do it. i will recommend that if you study Pressman's (book name Switching Power Supply Design fourth edition) it is perfect

[@HaseebElectronics]

@Theseus you are right.

[@mhnabin302]

@@HaseebElectronics Thank you for the suggestion. I would also request that you can make a video on the solar charge controller. That could be a new and demanding topic in recent world electricity shortage cases.

[@coolfisher1644]

Great video but a schematic would make it much easier to understand and visualize your troubleshooting steps.

[@shujauddinshakoor2469]

Shukran jazakallah

[@HaseebElectronics]

most welcome

[@snhongo1]

Great video

[@HaseebElectronics]

thanks a lot

[@merakitchen4875]

Useful video

[@HaseebElectronics]

Thanks a lot

[@AbdulMomenZargar60]

Subha Ka Salaam Sir Jee

[@HaseebElectronics]

apni duaon mein yaad rakhein Zargar bhai

[@ThiagoTuareg]

hello friend, congratulations for the video, like your videos that you have been putting on the platform I am managing to learn a lot, but I have a doubt, how do I change the output voltage of a 24VDC source to 48VDC. Thnx so much!

[@Edmorbus]

Thanks for sharing

[@HaseebElectronics]

it is my pleasure

[@Maintencelab]

ماشاء الله قبل عدة أيام لدي نفس المشكلة شكرا لك شرح رائع عندي سؤال من اين اقدر اشتري نفس الأداة التي تزيل القصدير

[@HaseebElectronics]

www.indiamart.com/proddetail/weller-wr3m-3-in-1-high-end-electronic-pcb-soldering-de-solderign-hot-air-gun-rework-station-9437196497.html

[@HaseebElectronics]

WELLER WR3M REWORK STATION

[@senakabandara4367]

Good very good thanks

[@HaseebElectronics]

it is my pleasure

[@akshaygorai7945]

Sir 3d13009 and small 13009 me defference kya hai? Can I use small where big use?

[@mahmutkurt9884]

Selamunaleyküm. can ı ask question, ? can ı do one SMPS adaptor adjustable? Volt and AMP ?

[@Calm142]

Just curious, what is the smaller transformer for?

[@HaseebElectronics]

it is called "PULSE TRANSFORMER" or "SIGNAL TRANSFORMER". it takes drive from the SMPS IC, because the smps ic is in secondary side. so this transformer provides isolation between primary and secondary, and the power mosfets are in primary side (which drive the main transformer) in simple words, it transfers the drive signal from PWM ic to the mosfets

[@nayanjagirdar8408]

👌👌👌👍

[@HaseebElectronics]

BEST REGARDS

[@gregmartin2478]

trying to figure out what a A1316 G21 means on a transistor that is in my audio mixer to replace it and dont know to read it to get a new one

[@rafanaskar4495]

I need a desoldering iron as like your. How can i got it? I am from Bangladesh

[@HaseebElectronics]

it is WELLER WR3M rework station. you can purchase Online

[@Ahmedsayedzorro]

👏👏👏👍

[@mastimaza302]

Hi Sir, i have fluke 115 multimeter having continuous beep issues on continuity mode. any solution?

[@ahmedfrhan7529]

السلام عليكم My friend thanks for your work I want to explain how we can enabled Ac PCB inverter If they are separated Power PCB and inverter pcb

[@baselkw4783]

تحية لك استاذنا الفاضل مانوع مكواة اللحام المرفقة بشفاط هذه وهل يمكن اضافة اسمها في رد بوركت جهودك

[@HaseebElectronics]

WELLER WR3M. made in Germany