{1071} SMPS low output, fluctuating, Tik tik sound

Рет қаралды 7,197

4 ай бұрын

In this video number {1071} SMPS low output, fluctuating, Tik tik sound. I explained how to repair 12 volt, 10 ampere 120 watt switch mode power supply. it was not turning on, and it was providing click sounds. after troubleshooting i detected 1N4744 zener diode, PC817 optocoupler. asfter replacing faulty parts, the power supply started working
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#smps #fluctuating #notworking

Пікірлер: 112

@g4z-kb7ct 4 ай бұрын

Nice to see that bad cap explode. Very entertaining. It didn't deserve to remain in one piece. Not only did it rest in peace (RIP) but also rest in pieces haha! In the past I've fixed many 80's computer monitors (especially by Commodore) and one common problem was bad capacitors causing a ticking sound. Do you know which part was making the ticking sound? I suspect it was that cap.

@HaseebElectronics 4 ай бұрын

Hahahhaha 😅😅 It becomes frightening condition when it produces a blast sound with smoke More horrible situation is that when we poke test lead on PCB and there is this type of disaster and we aren't mentally prepared for this unforeseen event In first moment it makes us crazy 🤣🤣 Tik tik sond i think from high frequency transformer because there was short circuit due to parallel zener diode So voltage weren't passing to the capacitor

@g4z-kb7ct 4 ай бұрын

@@HaseebElectronicsdo you know why the capacitor blew up?

@HaseebElectronics 4 ай бұрын

@@g4z-kb7ct because there was huge fluctuation after removing short ciruited zener 1n4741 and feedback loop was inactive due to optocoupler failure Then all spikes reached to this weak capacitor, this capacitor was also near to its last life stage When it is old its ESR increases, causes to increase itnernal temperature It was unable to handle those large pumping spikes It is my opinion May be right or may wrong....

@sboho 4 ай бұрын

@HaseebElectronics Dear brother Haseeb I need your help, I have solar transformer where I by accident reversed polarity of the incoming lines from the solar panels, smoke and bang sound, I opened it and found two resistors blown, my problem is I can't tell the rating of the big resistors!

@dimitrismaster 4 ай бұрын

well this is why its a good idea to wear protective glasses,because if something pops,it wont take out your eye...I remember the first time i was taking measures on a tv psu,and the mosfet expoded,i was scared to death...lol@@HaseebElectronics

@bartdepauw1156 4 ай бұрын

Keep reparing these SMPS'ses, this is so nice to see all possible different problems. Output diode was also my first reaction, but then I should have know it without oscilloscope. Here you see experience speaks ...

@user-el5ud6in1t 4 ай бұрын

May Allah reward you for your generosity, you teaching us for free. From Somalia, Ramadan kareem ❤❤

@HaseebElectronics 4 ай бұрын

Allah bless you and your family Ramadan Mubaarak

@nirmanmulalic1824 4 ай бұрын

Selamalaikum from Bosnia. May Allah almighy reward you for your effort. You are of great help.

@HaseebElectronics 4 ай бұрын

wa alaikum salaam thanks a lot dear please accept my best regards

@merbenperinion5446 4 ай бұрын

I am the one your subscriber, i almost followed eletronics, specially airconboard. Alway watching from philippines

@anurasenarathna1703 4 ай бұрын

As always very useful repair video. Thank you very much for sharing your experience.

@Arturochirinoscruz 4 ай бұрын

Saludos desde PERÚ 🇵🇪sudamerica, excelente video gracias. 👍

@antiamperak 4 ай бұрын

Pěkná práce 👍🏻 dnes dokonce i kouřové efekty 😂 děkuji

@HaseebElectronics 4 ай бұрын

Ano. zvuk kouře a výbuchu nám říká, že "obvod funguje" hahahahaha

@muhammadishtiaq24 3 ай бұрын

Excellent thanks for sharing this informative video keep sharing

@mohamedantri9433 4 ай бұрын

Very good information sir ❤❤❤❤original diode....great teacher in the world 🎉🎉🎉🎉

@HaseebElectronics 4 ай бұрын

Thanks and welcome

@abnhainn7944 4 ай бұрын

Morgan Herr Haseeb..supper

@German_byte 4 ай бұрын

I like that thick brush you use to clean dust from the board. It’s not a paint brush. Must be a special type of brush.

@HaseebElectronics 4 ай бұрын

it is parts cleaning tool brush with soft bristle it is available at online seller websites and tool stores

@joelbaguma8551 4 ай бұрын

Always on alert for a new video. From Uganda. Thanks for sharing

@HaseebElectronics 4 ай бұрын

thanks a lot it is my pleasure

@rohanranjandesilva465 4 ай бұрын

Without zener diode working its not any issue good help full video thanks for share

@HaseebElectronics 4 ай бұрын

please check my newest video number 1071A i explained it in detail

@Da_enex 4 ай бұрын

God bless you you just help me solved my problem

@HaseebElectronics 4 ай бұрын

it is my pleasure God Bless You

@rolanddejesus8685 Ай бұрын

thank you very much sir...

@mtrltoolman 4 ай бұрын

رمضان مبارك جزاك الله خير

@saarike 4 ай бұрын

Nice work and share!!! Thank you. 👌

@HaseebElectronics 4 ай бұрын

it is my pleasure

@jackssesanga7601 4 ай бұрын

Thanks for that effort brother.. i followed you from 1

@HaseebElectronics 4 ай бұрын

best regards and special thanks

@mdfaysalali8569 4 ай бұрын

From Bangladesh love you Sir ❤

@HaseebElectronics 4 ай бұрын

thanks a lot dear brother

@mdabdurrashid7204 4 ай бұрын

i am fan for you work sir

@koldan6542 4 ай бұрын

Me too

@iblesbosuok 4 ай бұрын

شكرا

@susantaatha6468 4 ай бұрын

Very nice information. Thank you sir.

@HaseebElectronics 4 ай бұрын

Most welcome

@gauripartapshanker9197 4 ай бұрын

Thank u so much God bless you.

@HaseebElectronics 4 ай бұрын

best regards

@jcsudeshchannel8224 4 ай бұрын

Wish you happy ramzan month for your good future and healthy thanks

@boniamar1661 4 ай бұрын

Thanks

@mohmmadmohseni8404 4 ай бұрын

Perfect 👍

@pravinpadhiyar2 4 ай бұрын

Very nice video sir 1n4148 zinar pe Ek video sir please🙏🏻🙏🏻

@hichamtassi1753 4 ай бұрын

Salam M Haseeb, very nice and scary video, very useful to see how to check opto coupler. How come the circuit is apprently working nice and smooth without zener ? Ramada Moubarak Said from Morocco Dear Brother.

@HaseebElectronics 4 ай бұрын

wa alaikum salaam brother happy ramadan please check this detailed video kzfaq.info/get/bejne/bdJgmKuApsWohok.html

@shefqetkaralliu6816 4 ай бұрын

Cordiali ringraziamenti per il tuo video. 🙏👍

@HaseebElectronics 4 ай бұрын

piacere mio. grazie per le tue preziose parole

@djbaklastech 21 күн бұрын

nice tutorial sir

@HaseebElectronics 21 күн бұрын

Many many thanks

@nandakumarpn-ug7zm 4 ай бұрын

👍😊great work

@HaseebElectronics 4 ай бұрын

thanks a lot

@babumanikuttan2258 4 ай бұрын

Sir Mera request hai ki ek BMS. Battery management system per ek video banaen. With theory base per. Please sir

@uveshp210 4 ай бұрын

Thank you sir 🙏

@HaseebElectronics 4 ай бұрын

Most welcome

@rmjnm 4 ай бұрын

Interesting.

@jvjv6213 4 ай бұрын

Waah ustad

@HaseebElectronics 4 ай бұрын

most welcome

@ladbla1752 4 ай бұрын

Thank you for another good video. But how did you know , you should check the zener diode? Which were symptoms? Or only your experience?

@fuppup 4 ай бұрын

Great work 👏! Without zener diode smps would working properly?

@HaseebElectronics 4 ай бұрын

thanks a lot please check this detailed video kzfaq.info/get/bejne/bdJgmKuApsWohok.html

@orlandoalarcon4158 2 ай бұрын

Vale la pena ese multímetro?? Otro me dijo murió en menos de un año ,gracias

@tvbox8478 4 ай бұрын

👍

@kahlid-ataya 4 ай бұрын

5:07 what did you say in Urdu ? و كل عام وانت بالف خير بمناسبة حلول شهر رمضان المبارك

@HaseebElectronics 4 ай бұрын

i said یہ ٹھیک نہیں ہے۔ it is not good

@kahlid-ataya 4 ай бұрын

@@HaseebElectronics شكرا للتوضيح

@holywar77 4 ай бұрын

Thanks good video. i have one question. What does a 1n4741 zener diode do? Why does it work even without it?

@HaseebElectronics 4 ай бұрын

please check a detailed answer in following video kzfaq.info/get/bejne/bdJgmKuApsWohok.html

@holywar77 4 ай бұрын

@@HaseebElectronics Thanks!

@jaym5938 4 ай бұрын

I wish Haseeb lived in the US :/

@HaseebElectronics 4 ай бұрын

special thanks for your Love, stay blessed kzfaq.info/get/bejne/bdJgmKuApsWohok.html

@demontagemontage Ай бұрын

اشكرك tools name please?

@mannmachine2937 4 ай бұрын

Sir, I am from India, kindly tell my about your de soldering pump.

@HaseebElectronics 4 ай бұрын

most welcome dear it is WELLER WR3M rework station www.indiamart.com/proddetail/weller-wr3000m-3-channel-rework-station-set-t0053368699n-21423948012.html?pos=4&kwd=weller%20wr3m&tags=BA||||7774.041|Price|product|||TS|type=attr=1|attrS|br

@denimmano112 4 ай бұрын

After coupler connection feedback

@remocomfromoryol2026 4 ай бұрын

In a similar situation, I changed the optocoupler, Schottky rectifier diodes and even TL431 - no result. And the cause of the malfunction was a faulty variable resistor (never failed) near LED, which turned 2.2 Kohm into 1 Kohm. How is that? - I don't know. I replaced it with a 470 ohm permanent resistor, selected the nominal value. The output voltage has become 12.1 volts and the SMPS is still working fine. Can something happen that is impossible? - it can happen.

@ibanyllakharkongor5330 4 ай бұрын

How to check ic without data sheet but only multimeter can you explain sir.how can we measure in voltage mode .

@HaseebElectronics 4 ай бұрын

it is really difficult question,

@ibanyllakharkongor5330 4 ай бұрын

Ok sir.but sir i want to know which common ground in secondary or output.to measure voltage.does polarise capacitor is common ground for input and output to measure any components voltage please help sir

@marrisna 4 ай бұрын

Sir, I hope you are doing well. I have been facing problem with my pc power supply. The problem is mainly a buzzing sound when the power is introduced to the power supply and the buzzing sound increases when a load is given to it. How can I ge rid off this problem?

@aslamaslam.3145 4 ай бұрын

Sir, Why you didn't put the zener diode back?🤔.

@HaseebElectronics 4 ай бұрын

please check this detailed video kzfaq.info/get/bejne/bdJgmKuApsWohok.html

@aslamaslam.3145 4 ай бұрын

@@HaseebElectronics i watched the video❤️

@sudeepks1055 4 ай бұрын

How to buy this resolder machine

@HaseebElectronics 4 ай бұрын

it is WELLER WR3M rework station you can purchase online from www.indiamart.com/proddetail/weller-wr3000m-3-channel-rework-station-set-t0053368699n-21423948012.html?pos=4&kwd=weller%20wr3m&tags=BA||||7774.041|Price|product|||TS|type=attr=1|attrS|br

@sudeepks1055 4 ай бұрын

@@HaseebElectronics 350000 price 🙄

@muthu124 4 ай бұрын

Sir can you repair my desktop power supply for me

@HaseebElectronics 4 ай бұрын

I am in Jordan If you can send it to me i will repair for you. No problem for me Just check shipping cost and send me model number of the power aupply I will check from courier here in jordan. Will they despatch it back to your location or not? If it will ok to send then you can send as parcel to me

@denimmano112 4 ай бұрын

Schematic diagram where can get

@HaseebElectronics 4 ай бұрын

you can download datasheet and in the datasheet you can find sample circuit. the sample circuit is almost very closer to the circuits. and it gives a clear concept of working of that ic

@ishkhan2501 4 ай бұрын

Dear Haseeb, السلام عليكم you did not replace the diode (1N4148).

@HaseebElectronics 4 ай бұрын

و علیکم السلام و رحمۃ اللہ و برکاتہ It is 1N5744 zener diode I forgot to explain In today's video it is explained in details I will suggest to watch upcoming video number 1071A on 10:00 AM Pakistan time

@ishkhan2501 4 ай бұрын

@@HaseebElectronicsThank you for prompt reply, great work.

@gamiwv 4 ай бұрын

No TL431 ?

@HaseebElectronics 4 ай бұрын

TL431 found good. it was a really amazing. i think it was material failure of optocoupler resulting open circuit. if it was due to overcurrent, then TL431 must damage with optocoupler

@jackssesanga7601 4 ай бұрын

Why sound

@HaseebElectronics 4 ай бұрын

it is due to short circuit in secondary side. it is transformer saturation