{1002A} SMPS not working || SMPS has no output voltage

[@sanelleric6121]

I think that IC has got damaged due to snubber diode failure.

[@HaseebElectronics]

might be, most of time snubber diode failure causes to saturate the core and creates spikes, that also cause to increase in vcc voltage that may be a reason for IC failure. otherwise these chips are most failure items and sometimes snubber diode failure cause to damage the mosfet as well

[@Somanathan-hj7ge]

I don't know how people are giving likes, with out seeing video and your job sir, your video are real and great,so 😊I think

[@HaseebElectronics]

Thank you so much

[@jackshuler3126]

Thank you for sharing your knowledge on smps. I have learned so much from these videos.

[@Somanathan-hj7ge]

Yes, sir,i watched the video 😊, super soldering iron tip, temperature perfect, good ic removing technic, super cleaning ic holes with wick,and using alcohol, awasome job. you are wonderful 😊 very very good 👍

[@HaseebElectronics]

best regards and special thanks

[@Somanathan-hj7ge]

Okay Bhai

[@gopalarao8578]

Hi brother namaskaar. Your soldering iron is very nice. Thank you for sharing this video. Good night 🙏

[@Watch__This_]

Great videos, you are a great teacher ❤, one time in psu that ic was in kilo ohms and in the end i have changed and it start working, strange but it happens...

[@gauripartapshanker9197]

Informative and knowledgeable vedeo. Thank you so much God bless you.

[@TheVinylrider]

Thank you very much for your effort to teach us and share your knowledge.

[@GSimon850]

brilliant video many thanks for sharing.

[@ISO07ISO]

Senden öğrenmeye devam ediyorum. Geçmiş videoların tümü Türkçe olsa çoook sevineceğim. Tekrar tekrar izliyorum.👏👏👍

[@merwynvincent]

Just what I needed!!! Thank u!!

[@HaseebElectronics]

You're so welcome!

[@francomongillo]

Sei un grande, veramente bravissimo e grazie per i video che ci regali ogni volta si impara sempre qualcosa.Grazie.

[@muhammadishtiaq24]

Excellent thanks for sharing this informative video

[@HaseebElectronics]

My pleasure

[@otabektillavayev3309]

Assalomu alaykum Best Teacher my

[@mokhles54yt]

Dear Sir, kindly mention if you have time, what are reasons might be the cause of voltage down from 5v to 1.4v of pin8 of IC 3844? no need details explanation. only mention in very short technically to spend less time to reply or you can reply during any next video to save time. I am from Bangladesh. my age is 70. I enjoyed your all videos like short film. I am also technical person.

[@moniruzzaman8568]

Sir advice acro power supply 24v 10a full repair video 3844GM -E1 ic is damaged

[@victora7197]

Thanks for the video, I have similar SMPS and its IC is also damaged but the IC No is 1203P60 and unable to find same ic, so please suggest me a alternate or substitute IC

[@mahmoodh7767]

Perfect 👌👌👍👍🙏🙏

[@amma1837]

Thank you sir

[@anishstechlab7323]

Super explanation

[@HaseebElectronics]

Best regards 💕

[@Edmorbus]

Thanks for another great video

[@rajkhumar001]

Nice work sir. Sir i have a doubt. You have another to check the switching. Inthis case how can we check the switching ic if i dont have any another smps? Thank you🙏

[@HaseebElectronics]

please check video number 975 for testing switching of smps ic

[@rajkhumar001]

@@HaseebElectronics thank you sir for your reply I will check it. 🙏

[@sinhrr]

Kindly explain the principles involve which you came to conclusion thst IC is short. What you checked pin no 7 & ground resistance kindly explain so that we can learn

[@sinhrr]

Also kindly mention the soldering iron u are using it is very pointed & good plus multimeter brand which multiple functions

[@jboy4real]

Kindly assist I have a big challenge to power up the uc3842 I want to design a DC to dv buck converter with a minimum voltage of 36v and maximum is 100v I watched your video on start up resistor for uc3842 after adding my calculated resistor value the voltage at pin 7 is only 8v hence can't power the IC . I need your support. Thanks

[@mahmouedsayem]

ممتاز ❤

[@josephnkhaikolungu894]

How are you Sir I am having a challenge with a component labeled STPS30100ST, DKLLD, CHN 950. I am not sure if it's a Schottky diode or a voltage regulator, 3 legs

[@thusharasampath3029]

Sar. We can use the 230v led bulbe.. ??

[@HaseebElectronics]

no. we need 100 watt or 60 watt tungsten filament lamp

[@thusharasampath3029]

Ok sar...🫡🫡🫡

[@dipakbhalodia7155]

Bootstrap capacitor ka video urdu chennal me kab ayega

[@HaseebElectronics]

it is already uploaded on urdu channel

[@Radek__]

14:45 I think you should regulate it to 12.00V, ONLY when you have some load connected. otherwise you set it to 12.00 without load, but then when you connect someting it will drop down.

[@remediusfernandes1570]

Thanku sir🙏

[@HaseebElectronics]

most welcome

[@TheDurdane]

If you put the wick in flux, it will work better...

[@SamuelGirma-fp6sm]

I have smps and its output is 32v and 15v but it stop working ,when i check the connectivity between 32v and ground the multimeter beeps which is there is short circuit i replace all the component except az 437 transistor what is the problem and the ac part is ok

[@jcsudeshchannel8224]

Good

[@mdiqramhossain9493]

How could I find the model wise SMPS schematic diagram for print out?

[@navalsharma8034]

What is value of diod F4

[@HaseebElectronics]

it depends on package code if it is SOD523 or SOD123 package from Philips and Central Semiconductor, is 3.3 volt zener same marking and same package code from Luguang Electronic Technology / Vishay Semiconductor / Taiwan Semiconductor Company is 36 Volt zener SOD323, SOD123, SOD523 package from Comchip Technology if for 9 volt zener please confirm the package style in your circuit

[@chumatez]

How do you know when the ic is bad

[@HaseebElectronics]

there are many sypmtoms that indicate the fault location

[@M.lababidi]

Alsalam Alaikom. I have a power supply that has a strange malfunction, which is that there is a 24 volt output, but there is no amp... and I need help, please. 😢😢😢

[@isaacattigah5595]

🫡🙏🏻

[@dafaabdillah730]

Jangan pake bahasa Inggris gak faham lo

[@HaseebElectronics]

Selamat malam. Saya mengerti sedikit bahasa Inggris, dan saya mencoba untuk berbicara dalam bahasa itu. Saya juga akan mencoba untuk lulus ujian bahasa Inggris. Namun untuk saat ini mungkin ada yang bisa memahaminya dan bisa mengambil manfaat darinya. Selain itu saya berbicara bahasa ibu saya dengan sangat baik, yaitu bahasa Urdu. Anda dapat mendengarkan saya di saluran bahasa Urdu saya www.youtube.com/@haseebelectronicsurdu

[@damensutherland7081]

Tuff transistor

[@Kevin-mp5of]

I believe placing the diode on the bottom of the circuitboard will cause poor heat dissipation and premature failure.

[@kaizen1071]

Emeğinize sağlık efendim.Vakum istasyonu nu kullanmadınız. Sevgi saygılar sunarım.

[@MohammadhosseinRezabekloo]

Very informative

[@rohanranjandesilva465]

Gwt40hp65fb sir can u tell me any equal one please thanks

[@mudasirnazir4134]

Jazakallah sir very very good teaching❤❤❤❤❤ By the way where is your solder sucker station you are using normal soldering iron

[@JayWye52]

you can see his desoldering iron at the top of the video,the turquoise handled Weller. maybe it was full or clogged so he went to solder wick.

[@aknkurk3644]

Aleykum selam, Again, it was a very informative video, you are doing great work.,thanks

[@HaseebElectronics]

welcome

[@Repairing-y9y]

What is your checkin light..led or haligon bulb

[@HaseebElectronics]

it is 100 watt tungsten filament lamp

[@rolanddejesus8685]

thank you very much...God bless.

[@HaseebElectronics]

You are so welcome!

[@nuritepegoz6042]

verdiğin bilgiler için teşekürler ALLAH C.C Razı olsun

[@susantaatha6468]

Very nice information. Thank you sir.

[@HaseebElectronics]

Most welcome

[@Somanathan-hj7ge]

Let me see video after 43 minutes,

[@HaseebElectronics]

it is my pleasure

[@aliemlek]

👌👌👍👍

[@HaseebElectronics]

thanks a lot

[@mustafakaragol9530]

[@HaseebElectronics]

best regards and special thanks

[@JAMMYKAN]

Good job 👍🏻 ❤❤❤

[@osamakosara]

God bless you sir, so much useful techniques when you test the resistance between - the bulk capacitor and the pin 7( VCC ) it is awsome

[@mohamedantri9433]

كالعادة استاذي الفاضل أشرف الله يحفظك من كل سوء ويحفظ حسيب على معلوماتك القيمة وجعله في ميزان حسناتكم استاذنا ❤❤❤❤