Samsung UA65HU8500 TV repair - Switching Power supply board repair guide 

This channel is quite educational. It amazes me how many tv's can be repaired by spending about 50cents on a part! Just need the knowledge and effort.

Hi, sorin I saw older video from 2017(Jvc tv lt-22dg52 no power repair) on this video you have a problem with 3 diode parallel on PSW, and to identify which one shorted you cut each time one diode and the end u are finding the faulty one. but now u are more expriance and teach us better way

I felt like i was back to the electronics classes at university. I love this type of explanation, asking questions about the solution, trying to attract attention in every single moment of this video. Great teaching.

U can learn for all your life and still not understand. But when somebody shows you that the way to understanding is simplicity. Thank you My Friend....its a pleasure to watch you work..

You are so kind giving free lesons to people.

Thanks Sorin. Always nice watching you do troubleshooting. Have an awesome week.

Thank you so much for showing what failed and just how easy it was to trouble shoot. I have a house with no less than 5 Samsungs in it. I'm sure they might end up like this one. You're the best.

Took me a couple of times to watch this to understand how you found which set of diodes was at fault. Great video Sorin ! Love the diagnostic methods, and how you explain how it works.

Love your videos Sorin,you explain it pretty good and for a person like me who is not electrically minded it makes some sort of sense if you know what I mean. Thanks for for your time..Good luck mate.

What a nice way to explain what's going on, how to troubleshoot it using your brain and experience. Thank you!

Thank you. I have a very similar year Samsung 40” that’s dead. I’m anxious to look at it now I have an idea what to look for.

You always give good troubleshooting tips and methods... that's why we love you big boss

People who don't understand electronic assume that a partially, or sporadically working unit is easier to fix than a completely dead unit. They couldn't be more wrong.

Another day another lesson learned from the MASTER teacher, Thank you and God bless you. Oh and Liked and subscribed.

Thanks I always love watching your videos but mainly the tv ones.

you can install sr5100 in this node too. these diodes differ in their operating voltage - 100 and 150 volts, respectively. but at this point the output voltage is only 5 volts, so the reverse voltage for the diode will be 40-50 volts maximum.

You are one of my best teachers

Sorin is the Holy Grail for electronic repair😊👌👍

Best you know because of you i can fix any power supply you are the master of trouble shooting thats you MASTER SORIN

This will never get old,thank you Sorin!

Thank you , I just check and my tv have same problem with diode, Amazing is working now 👍👍😀

I have a model tv just like that and I know what to definitely check if and when it stops working. Thank you for the repair tutorial.

Lots of diodes in that TV!. 😳 Very nice fix. Thank you for the step by step.

Best explaining TV board repair video so far I have watched👍.. Nice step by step explaining 👏.

Excellent video. Great for putting voltage meter in corner and nice view of meter on components. I subscribed!

Ha ha I love it, I have been watching your channel for a while. You remind me of my self when I was working on the TV repairs up until early 90’s. I then moved to the computers and network. Recently I am retired. But I will love and watch the electronic repairs. Good luck with your Chanel. Merry Christmas Sorin. By the way I got my training in the Austria and then I moved to the Canada.

Thank you sir, you remind me my old work, as a repair technician. Nice method to find the shorted diode. I did not think that. But I have to notice that you must replace all the three diodes. They have to be from the same type and same lot also. So they have same characteristics possible. As you mention maybe the technician chooses not to equalize the three diodes so the TV come again for service after a few years.

Excellent Sorin I have done 3 with the same issue

Love watching ur videos very experienced guy right here 👌👌

Sorin, thanks! This is a nice and educational video!

Amazing as ever Sorin.

please continue to teach and educate, thank youuu

Thanks for all your videos and taking the time to teach US. Regarding those diodes, they are schottkey diodes and even though One is marked SB and the new ones SR they are identical components. I have an electronics shop near my house in Portugal and for the SB diode they give me the SR One. Thanks again.

Thank you for your business, see you again in 2 years.

Sorin for King of the free world.

great video, thanks for sharing your knowledge.

Hi Sorin, thank you, you are the best.

Amazing Maestro Sorin 👍

very comprehensive explanation. 😎 hats off. 😎😎😎

your knowledge is always mind blowing. how i like learning from you. robert young

A master class and no more to say.

Your videos are always the best sir

Great video, thanks very much for sharing 👍

My master, very good teacher.

Best on RU-vid !!!

Thank you very much for your vídeos and for sharinhg your knowledge.

Thank your Sorin! Pls put value from hot air station on screen. Your are génius.

Good Master God bless you for good work

Thank u so much ,you are great .

Nice trick without desoldering thank you

Great lesson.

you are very clever :)

Very usefull lessons! thx Sorin

Thank You a lot for this video.

my best teacher

You are Great , i need these videos like air

Your "he he he" in 7:00 is so good 😅😁

Sorin the great fixer 🤔!

Thank you very much sorin..

Superb , thanks for sharing

you are using good method!

Thanks for the tutorial. I like your tutorial s.

thank you Sorin

Great job 👍

Oh very good more depth here and tricks - well done, subbed. Do more TV boards. :-)

Been doing some of these myself! It's usually the large 420v caps..... usually.

Sir, you are amazing!

Thank you master!!!

I'm improving I instantly knew to put your finger on those diodes to find out which one gets hot (with power being added). Although given we are working with AC I would just wip out the petrol and stick that on instead.

very nice video

good job mate.

Thanks for this video :) this board has nice look color :D

Thank youbfor sharing my friend

Thank you that was good fun

tanks sorin

bravo! u are da man! thanks

U r my teacher ❤

Thank you

I use to love fixing TV then testing them for a day.

How you got to the fault that fast, amazes me.

wonderfull. thank u

Good job thank.s a lot i like you sir

Thank you lot's

On diode mode, aren’t good diodes supposed to show “OL” one way, and some +/- 0.500 number, the other way? At 12:10 you got a reading of 0.250V and 1.555V the other way. How is that diode not damaged. Please explain, I’m a novice. Thank you

great explonation

Awesome!

Nice one

beautiful

I love sorin he's a fucking legend!

well explain

It gets more difficult when a resistor opens. I just repaired a similar PS where a 2W resistor failed open but it was perfectly fine on the outside (not burnt). Had the PS in the TV fully connected and plugged into mains, and traced voltages with the aid of the PS schematics. The issue was the PS not switching although rectified mains was there.

Sorin, thanks for the video!!!

Sir what is the voltage applied to the diod thank you

That’s the 8 series. I have the same one and it’s badass

bravo

Great video.....I have a Samsung 75" Q70R and it went black screen while watching a movie, it flashed blue every 20 seconds, I have some knowledge in electronics so I opened it to see if it had bad capacitors. With the TV energized, I disconnected the ribon cable that goes to the main board and the screen turned blue, so I assumed it was not the damaged screen, I have been looking on ebay and I have found the original power supply parts, do you think that replacing the board will solve the problem?...thanks

nice sir

Thank you for your videos. I haven’t been able to watch this one yet. I have a question, is that zippo fluid in the zippo fluid bottle? Or are you just reusing the bottle for something else?

Super! :)

Awsome