Samsung UA65HU8500 TV repair - Switching Power supply board repair guide
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- Опубликовано: 22 июл 2024
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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
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.
Add on the experience points... No one ever asked how he knew about how the TV will work without parts or how much better with parts. I personally STILL cant figure it out-huge learning curve watching these vids.
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.
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.
They don't understand the difference between a simple DC controller on, say, a toy train and a more complex supply - linear, switching, balanced. Or why that matters anyway. In the above that knowledge and methods of isolating the faulty part kept a several hundred (or more) $ (USD) TV out of the dumpster for the cost of a diode that was likely less than $20.
I'm in awe of the way you work through problems and remind all of us that everything comes down to Ohm's law, Kirchoff's laws, and so on.
@@larrymorley8968 Schottky Diode cost no more than 0.1$
You are so kind giving free lesons to people.
Thanks Sorin. Always nice watching you do troubleshooting. Have an awesome week.
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.
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.
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..
What a nice way to explain what's going on, how to troubleshoot it using your brain and experience. Thank you!
This will never get old,thank you Sorin!
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.
You always give good troubleshooting tips and methods... that's why we love you big boss
You are one of my best teachers
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.
Sorin is the Holy Grail for electronic repair😊👌👍
Best explaining TV board repair video so far I have watched👍..
Nice step by step explaining 👏.
For me as well, i have a couple of boards to practice on. I cant get 2 channels.
Sorin for King of the free world.
Thanks I always love watching your videos but mainly the tv ones.
Lots of diodes in that TV!. 😳 Very nice fix. Thank you for the step by step.
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.
Best you know because of you i can fix any power supply you are the master of trouble shooting thats you MASTER SORIN
Another day another lesson learned from the MASTER teacher, Thank you and God bless you. Oh and Liked and subscribed.
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 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.
Thank you for your business, see you again in 2 years.
Excellent video. Great for putting voltage meter in corner and nice view of meter on components. I subscribed!
Thank you , I just check and my tv have same problem with diode, Amazing is working now 👍👍😀
Excellent Sorin I have done 3 with the same issue
you are very clever :)
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.
Love watching ur videos very experienced guy right here 👌👌
your knowledge is always mind blowing.
how i like learning
from you. robert young
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.
Your videos are always the best sir
Thank your Sorin! Pls put value from hot air station on screen. Your are génius.
Sorin, thanks! This is a nice and educational video!
Your "he he he" in 7:00 is so good 😅😁
Best on RUclips !!!
please continue to teach and educate, thank youuu
very comprehensive explanation. 😎 hats off. 😎😎😎
A master class and no more to say.
Nice trick without desoldering thank you
Been doing some of these myself! It's usually the large 420v caps..... usually.
Amazing as ever Sorin.
Hi Sorin, thank you, you are the best.
great video, thanks for sharing your knowledge.
Amazing Maestro Sorin 👍
Thank you very much for your vídeos and for sharinhg your knowledge.
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.
My master, very good teacher.
Good Master God bless you for good work
my best teacher
Sorin the great fixer 🤔!
Great video, thanks very much for sharing 👍
Thank u so much ,you are great .
thank you Sorin
You are Great , i need these videos like air
Oh very good more depth here and tricks - well done, subbed. Do more TV boards. :-)
you are using good method!
Very usefull lessons! thx Sorin
Thank you very much sorin..
Superb , thanks for sharing
Thank You a lot for this video.
Thanks for the tutorial. I like your tutorial s.
Thank you that was good fun
Great lesson.
How you got to the fault that fast, amazes me.
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.
Thanks for this video :) this board has nice look color :D
Send1NStefan I was thinking the same thing. Why aren't all boards like this where everything is so clear to see.
Sir, you are amazing!
I use to love fixing TV then testing them for a day.
Great job 👍
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
very nice video
That’s the 8 series. I have the same one and it’s badass
U r my teacher ❤
bravo! u are da man! thanks
Sir what is the voltage applied to the diod thank you
Thank youbfor sharing my friend
good job mate.
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
I love sorin he's a fucking legend!
Sorin, thanks for the video!!!
great explonation
Good job thank.s a lot i like you sir
So do you think monitor with adapter outside are better??
Thank you master!!!
tanks sorin
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?
I have a 50" inch philips with sound and barely you can see inside, probably led or power supply. The voltage going to the leds is 38v and after 20 sec drops down to 25v . Any idea If it is leds or power supply?
Thank you
Thank you lot's
excellent Allen hate UMC also jvc 50+ where they stick the screen down grrrrrrrŕ
Where is this guy from? Very informative content btw.
wonderfull. thank u
hello sir,
how are you i hope you are fine and well.
sir i have toshiba equium laptop it's no power and no sign of any light when i plug in power.
when i check the board the L2AA ic is heating up but i cant find it in market to replace it.
if you have any idea to replace it on some other ic then let me know to replace it by which ic.
thanks
Hello could you make a video with ac out door main board troubleshooting - repair and explain how we can troubleshooting the IPM because the most common problems are with this component… thank you in advance. Petros Santorini island Greece….
what kind of multimeter you use
well explain