{1161} TNY279 power supply circuit troubleshooting and checkpoints

In this video number {1161} TNY279 power supply circuit troubleshooting and checkpoints, I explained how to test, troubleshoot and repair tny274, tny275, tny276, tny277, tny277, tny278, tny279 & tny280 based smps circuit using its sample power supply circuit provided in datasheet. i explained its datasheet, pinout, check points test points and practical demonstrated the step by step troubleshooting and repair. i shared the troubleshooting tips
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#tny279 #ttny280 #tny274 #tny275 #tny276 #tny277 #tny278 #electronics #smps #howtorepair

[@antoniamariabaldovino5491]

Grande amigo eres lo maximo trato de ponerme al día y tengo varias libretas de apuntes de tus clases y luego repasó bien

[@HaseebElectronics]

Thank you very much for your valuable words. greetings.

[@ISO07ISO]

Yaptığın iş gerçekten emek isteyen bir alan.sana gerçekten çok teşekkür ederim. Allah rızık bolluğu versin sana.

[@MarineElectrical]

Master Haseeb!

[@luispreval8479]

Interesting video

[@shamssham828]

Va alaikumussalam va rahmathullahi vabarakathuhu

[@kaizen1071]

Aleykümselam ve rahmetullahi ve berekatuhu. ❤❤❤

[@nayanjagirdar8408]

Very nice sir👌👍

[@HaseebElectronics]

Thanks and welcome

[@FixTronics]

Great explanation brother Thank you so much I encountered this exact IC TNY279PG in a computer power supply and it was used to provide the standby 5v. The problem was this ic is shorted, so I replaced it and the standby 5v was back and is very stable at 5v and no matter how long I kept it powered it keeps working good and providing a stable 5v, but whenever I short green wire to ground (black wire) this IC gets shorted. I replaced it many times and even with a higher wattage ic but still gets shorted a few seconds after shorting green wire to black, and while the wires are shorted together, the power supply works and provides 12v at the output yet still that standby 5v ic gets shorted and blows the fuse. So I couldn't fix it and not only one power supply but many of the same type and model with the same exact issue. There wasn't any shorts neither at the primary nor the secondary sides...!!!

[@fuppup]

👍

[@hichamtassi1753]

Very interesting video Dear Brother Ashraf, can you make some videos on how to work with 12v/220v inverters. Mostly how H Bridge are working and to understand how AC output voltage regulation works to be able to fix voltage drop under load. Thanks in advance.

[@susantaatha6468]

Very nice explain. Thank you sir.

[@emadodeh309]

وعايكم السلام ورحمته

[@jcsudeshchannel8224]

Go on thanks

[@HaseebElectronics]

best regards 💞

[@aliemlek]

👌👌👌👌👍👍

[@muhammadishtiaq24]

Excellent thanks for sharing❤❤

[@HaseebElectronics]

You are so welcome

[@restingroysurong805]

Sir I really want to know where is ground on secondary(output) transformer winding left or right winding is a ground winding?.or we can know the ground on diode or any component that is connected with transformer winding ground.please help me sir

[@HaseebElectronics]

the polar capacitor is to be used as a reference point for measurement

[@deejayrahman]

❤❤❤may Allah bless you.please I want to know the voltage between pin3 of the ic accross the negative pine of the capacitor

[@samuelodhiambo2871]

666t4inil7ki8 4 is is 4😢

[@bharathrajvv]

Make a video on testing LD7750 ic

[@omiza3416]

Hi sir, If multimeter has not good frequency response to check switching, can we test the current sense resistor to find drop voltage?

[@ramdanramdan9440]

Cara melepas Kan atw mengosongkan kapsitor utama yg besar gimna Cara. Saya lihat di yautub Anda posisi multi sister di pasisi DC, /Ac

[@peshakathisera9276]

Sir, Need to find an alternative IC for AN 8090S (Panasonic), can you please help?

[@madubai5933]

Pny chip same as tny??

[@jboy4real]

I have a big challenge in designing toroidal inductor for my mppt charge controller I'm designing the solar power is 660watt for two panels to charge two batteries of 12v/200ah each , the solar panel open circuit voltage is 45.9v with short circuit current of 9.31A, operating voltage is 37.5v and the battery cycle use is 14.4v and maximum charge voltage of the battery is 15v. Kindly assist me in determining the toroidal core size and power rating a also and all the calculation to determine wire size anf number of turns. The Fsw is 200kHz. I want to use toroidal powdered iron core or ferrite EE core Thanks