Thank you for this great explanation , I have a very similar PSU to the one you repaired that had the same resistor blown , I repaired it before watching your video BUT you gave me great insight for things to look for in faulty PSU units.

تشکر سپاس وهزاران لایک بسیار عالی تشریح تحلیل تجزیه وتوضیح بخشها علمی وعملی نکته بنکته ..ومرحله به مرحله ...ممنونم جناب مهندس محترم ممنونم👌👌👌👌🙏🙏🙏🙏🙏🌷🌷🌷🌷🌷❤❤❤❤❤😘😘😘

Very good and clear diagnosis. Obviously you have a great understanding of digital and analog circuits. Even as an electronic engineer I learned from you. Subscribed 👍

Power supply ke mamle me aaap ka koi jod ni sir ji bahot acha samjhaya aapne aab hum koi power suply aram se repair kar sakte hai

Nice tutorial. You explained everything about the circuit working very clearly. Kindly while recording give clear view pause at schematic for 2 to 3 seconds so that we can capture the schematic. Thanks

Assalamu alaikum, Dear Sir, I am very much thankful for your detailed teaching about the laptop charger repair. Last month I was listened your SMPS repair program. Everything was very informative. Even though I am a commerce graduate, I am interested in these electronic classes. I repaired very many things at my home, my own things, but the result was failure. I am not responsible to anyone for the loss, except me. After hearing your valuable and detailed classes, I have a confidence to repair very small electronic things. Very much thanks.. Expecting more classes, and will go through your previous posts. subscribed for more. Mohammed Basheer

Very good class, Thanks

شكرا جزيلا اخي الكريم حسيب على ما تقدمه وجعله الله في ميزان حسناتك انشاء الله.

I loved your video. Good explanation

wow very informative video thanks sir 🙏

Thank you, your sharing is very helpful.

That startup vcc resistor is one of the first things to check in a dormant switching supply. Some resistors don't do well with a high voltage or large pulses across it. No overload, just quietly drift open.

Really great troubleshooting demo and explanation....thank you!

Thanks teacher, wonderful lesson

great explanation and follow up from the circuit diagram. you know what you are doing, thanks about the warning because of the 400 volts element

Nice explanation.

Nicely done. Thank you.

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

Dayum epic video😮

Informative video. Thank you Sir Jee

Very gud and smart troubleshooting

sir I have seen many of your videos all are very easy explain thanks

Sir i've been come across some of smps recently and was greatly frustrated to find that the control chip or pwm ic was damaged due to heavy short circuit. Please do some videos on how a pwm gets damaged . what are the good design practices to prevent such kind of issues. Because once the pwm gets damaged it becomes very tough to find a new one in the market and we've to leav the whole power supply.

Asalam o Alaikum, Sir your content is great for understanding practical electronics here on KZfaq. If possible, the I request you to please creat a video series on SMPS based UPS (Like Homage, Inverex etc) that available in every home. The true sense of repairing you present will help everyone to troubleshoot it. Thanks for your spirit to helping others.

ma shaa Allah another superb repair work tutorial

biiiig like waooo amazing bro u doing great job Allah pak apko kamiyab kry ameen stay connected

ماشاء الله طريقة الشرح ممتازة وبسيطةواصل

Thank you very much . The best video on this topic on youtube

Lovely video sir!!! Appreciate your efforts and its very educative and a honest video. Just wanted to ask about the bulk capacitor calculation you had explained in ur video. Can you please make a video about how to calculate two parallel bulk capacitors of 150uF 450v in a 250W smps? Thank you sir

Thank you so much. Very much informative.

sir your videos are always very informative and your channel is very useful to learn ❤

Dear Siir, thank you for another great video. When we have laptop charger with no stable output, what are the steps to diagnose the problem on primary and/or secondary side?

جزاك الله خيرا يا غالي جهودك مباركه بإذن الله تعالى

Excellent ,Thanks a lot sir, Keep it up

hi sir thank you for sharing such an inspirational video tutorial where we get that schematic diagrams which u explaining the theory part pl z share it sir

Again I am here to learn how to explain properly. Keep sharing dear brother

Thank you very much sir very useful and nice video

MashaAllah G Brother App Bhoot Talented Hu 🌺

You're an artist my brother, hats off ❤️❤️❤️❤️

Very nice explanation master... another new knowledge gained today thanks to you. masallah!

Nice explanation thank you

Sir, Wa alikomsalam. Very informatic vedio. Iiked to much.

Good job and useful explanation, thank you عليكم السلام ورحمة الله وبركاته 🖐️❤

Very good informative.

Thank you sooo much for your hard work!!!

Zaberdast sharing dear👌🌹

Hi sir thank you very much for this video. Have a good day 🙏

ماشاء اللہ اللہ پاک آپ کو کامیاب کرے اور سلامت رکھے آمین زبردست وڈیو

Great job!

this video is what i have been looking for ever since. thank you so much sir for sharing your knowledge and experience for free. you are a great teacher.

Good work 👍👍👍

Wonderful job brother

Jazaa kallah khair.

Sir, where did you connected the series light bulb at the fuse side? Thanks

Emeğine sağlık ustam

Hi Haseeb, great tutorial, and understandable. But could you do a video how to check each component (how to test/ what to look for) without applying AC power. For people who have faults with other components.

ماشاء اللہ آپکی محنت

جزاك الله خير

Subha Bakher Janab Bhai Saab

Masha Allah zabardast sharing

Mashallah you are a good teacher.

Grazie amico. Ottimo come sempre. 👍🙏

MashAllah so much informative vide Thanks for sharing Sir

ازخدای مهربان بهترینها را برایتان ارزومندم بسیار باشکوه وعالی لطفا ما در فراگیری هرانچه حرفه ای شدن الکترونیک یاری فرمایید نکته بنکته استاد مهندس بزرگوار ودلسوز...🙏🙏🙏👌👌❤❤

Masha Allah Nice tutorial Big like

Nice lesson

Amazing video dear friend, happy Sunday!

ما شاء الله شرح رائع👍

nice job! i can understand now how to repair my macbook power supply. there is a certain hierarchy in electronics. capacitors and resistors have to support the operation of the IC and transistors. so the power supply really looks like a mix and match of many vendors products integrated to look like a single solution by the designer/oem.

thanks brother Haseeb, nice video, please where can i get circuit diagram for any charger of circiut board

Thank you very informative troubleshooting. I did same procedure checking the Vcc of the chip is 9v but the Vref is only 1.3v is this a faulty chip?

thanks for great video.. Greetings from Croatia !!

Thanks Hasseeb. I got my answer for how you discharged the capacitor using the PTC :) Qst please: What would cause a resistor to go open mostly?

You are the best thanks

many thanks, sir.

Very good video 👌👌

Thank very much sir 🙏🙏🙏🙏

MashahAllah sir. Great video. PlZ urdu may smja dya karay. Thanks🌹

Really nice work, i liked the idea of measuring voltage on Mosfet which is higher than that across capacitor which indicates that switching is available and also indicated that primary of the transformer is good without shooting inside it, actually i diagnosed a bad secondary transformer (partially shorted) also it can happen in primary, thanks a lot to you , I really increased my experience from your videos, god bless you, barak allah feek, like and subscribe

Good experience shared

Good video sir ji

Shukriya Maestro

Great job 👍

Very Very practical

بارك الله فيك

Excellent Work Liked It # 284

Salam Aleikum Ssi Haseeb. Thanks for lesson with interesting check points. Can you explain what kind of information sends the optocoupler toi the ic. Thanks.

Good afternoon engineer, thanks for your easy to learn explanation on adapter problems, please help me out with this problem. I was trying to fix a DELL laptop charger with power ratings: input voltage= 240 ac, output voltage =19.5v DC, 90W, i cannot recall the current rating as at this time of writing, the problem was that the capacitor and the bridge rectifier got bad and i replace them, now it is outputting 19.5v but CANNOT charge the laptop battery nor show the charging light bar any more, please help me out so that i can fix it

Sir, Good troubleshooting steps

Waah zaberdast big like

شكرا أخي الكريم و بارك الله فيك

Thanks for the sharing video 🇺🇸👍brother you doing great job 👏

Assalamu alaikum sir I like to learn something new from your every video. May Allah grant you a good life Amen.

A. O. A sir kya haal hai allah apko sehat r kamyabi dy gud luck

Sir,i want 12 volt output from 20 volt Which resistor do i use?

Good job Mach weiter so

Thanks for the video.. In this video, in the sample circuit please explain the snubber circuit. Usually we use RCD for snubber in parallel to primary winding, but in the sample circuit it is not there

Amazing outstanding OSM Mind Blowing Incredible

Very good video sir

Good explain