Thank you Mr. Tevz for your analysis, it is very instructive and easy to understand. I wish you much success in your activities and thank you for your time and dedication to teaching electronics repair. 👏👍🙏🙋♂️
Please i really want to learn more from Mr tevz but they is no way for me to communicate with him, please can you make it possible for me to talk to him, I'm in Cameroon
Great video as always. Like you, i always have an Analogue multimeter on the bench. I have an expensive dmm with fast bargraph but still prefer my analogue for some things, especially power supplies. It's what I was brought up with and trained on, keep up the good work 👍.
Very informative, you can learn a lot by watching, following his procedure step by step, understanding every topic. God bless and I wish you more success and helping others watching your videos!
There are more modern digital multimeters which have a bar graph at the bottom, under the digits, and typically that bar graph is refreshed 10-20 times a second while the digits are refreshed only 2-3 times a second. So you would at least see that bar graph jump to a high voltage. Some multimeters also allow you to lock the range to some specific one so that you won't miss such events due to meter autoranging and changing the number of digits after the dot. Last but not least, multimeters have a MIN and MAX buttons that can be used to display the min and max values detected until you reset.
Hello Tevz, of course I enjoyed your video. Thanks for the information shared. But one thing I understand in power supply is that whenever that happens, it supplies very high voltage to the motherboard and possibly the screen. I have seen a situation where the optocoupler pins got rusty and then cut and the power supply very high voltage that destroyed the main board and screen on LG television and another on LG blu-ray player. On the LG television, the sound IC got burnt and the CPU got burnt as well. Even after fixing the power supply the TV still did not work. So tell me how did the Samsung main board survived the high voltage of 26 volts
The 26 volts that measured that going to the main board is not been used. as you can see it stays 26 volts even though the main is not connected. the 26 volts, supposed to be 12 volts is not directly connected to the audio amp, the panel, etc.. Its have a MOSFET to switch it if the power is turned on. But the 5 volts is not normal. At the begining of the video. The 5 volts measure only a pulsing 1.8 volts, and the system will not turn on to that voltage situation. So no components were damaged. the voltage is pulsing because the PWM IC driver is sensing a high VCC voltages and automatically turning off. The line where cut due to corrosion.
Hey Mr T. When you are free can you show some of the TVs that couldn't be fixed? What was symptom, things you have checked and possible reasons why still faulty. Thanks.
@@tevzTVTevatronics I hate it when I can't fix something. Working on laptop now. Has symptom of only work on battery not AC. Tokin capacitors tantalum was replaced before to fix this issue last time but this time same problem comes back 3 years later but replacing capacitors does not fix issue. One more item to recycle bin.
Hi . I'm working on 32 Samsung tv with white screen. I found L4 on lcd flex board shows short but I can't find any capacitors nearby on the same line showing short. Is it possible no smoothing capacitors at all and the inductor goes straight to ic? I'm thinking ic is faulty? Any ideas on why I can't find capacitors showing short? Or is short inside panel and I need to cut lines?
Hello Master I have a TV that it has a protective glass and inside of its glass is full of dust and I don't know how to disassemble it please let me know if you have a video.
Hi Mr Tevez I did not like or subcrib this video cos it was not any sub title and I am gonna to do the same when I see no subtitle on the video and also no request again!!!
Sorry tevz but this time subtitles were showed And I donot know why first time it did not at all ! I told you before I am not perfect in english so I need the subtitles hard. any way forgive me dear tevz.
I am shure, i looked 500 Repair vids of this but i could not find this failure. Thank you!
My Favorite Tech Voice Over na Mala Boy Abunda😁,Thanks po s Pag Share Tips Tito Boy😊
Hahaha salamat
i learn a lot with you mr. robot voice man.most interesting is chip like ram memory.
Thanks
Saludos desde Venezuela, excelente video
Thank you Mr. Tevz for your analysis, it is very instructive and easy to understand. I wish you much success in your activities and thank you for your time and dedication to teaching electronics repair. 👏👍🙏🙋♂️
Much appreciated!
Nice bro.😊👍🧿🤳🛠️
Watching idol salamat sa dagdag kaalaman laking tulong niyan thank you for sharing
salamat din
متشكرم دوست عزيز ❤
Thank You! sir Tevz God Bless po
❤Thanks so much for all these knowledge. Like I said before you are a good detective technician. 😊.
Greetings from Mauritius 🇲🇺.
👌اعلیٰ
BIG FAN,I almost viewed all your laptop led tv reparing videos,love from Pakistan. impressed how you troubleshoot the problems
Newbie is watching master
Thank you Mr. Tevz for your analysis
Please i really want to learn more from Mr tevz but they is no way for me to communicate with him, please can you make it possible for me to talk to him, I'm in Cameroon
My pleasure my friend. I smile when I see you using it! Thanks for another great video. Sharing your knowledge is priceless!
My pleasure too!
You are genius bro real mechanic
Excelente explicación. Muchas Gracias Profesor Tevz.
Very good work
Отличный ремонт. Спасибо.
Good luck brother
Nice😁
Great video as always. Like you, i always have an Analogue multimeter on the bench. I have an expensive dmm with fast bargraph but still prefer my analogue for some things, especially power supplies. It's what I was brought up with and trained on, keep up the good work 👍.
Sir Exelint information vido great tech super
Supper
Ótima dicas, parabéns.
👏👍🙏🙋♂ SIR, WE ARE GRATEFUL TO YOU IN FORMETIV VIDEO
Good job!
Very good 👍
I do love you training
Very informative, you can learn a lot by watching, following his procedure step by step, understanding every topic. God bless and I wish you more success and helping others watching your videos!
Glad it was helpful!
Good 👍 👍 👍 sir
Bravo et merci 👍👍👏
Very nice.
Deus abençoe você sempre no seu dia a dia
Muy interesante, saludos amigo.
Very nice your video sir 🌹
Good boy
Maraming salamat po Sir Tevz.
God bless po sa inyong sambahayan.
salamat
Good job ..... thanks
thanks
Thanks
MÜTİŞSİN USTAM
👌
There are more modern digital multimeters which have a bar graph at the bottom, under the digits, and typically that bar graph is refreshed 10-20 times a second while the digits are refreshed only 2-3 times a second. So you would at least see that bar graph jump to a high voltage.
Some multimeters also allow you to lock the range to some specific one so that you won't miss such events due to meter autoranging and changing the number of digits after the dot. Last but not least, multimeters have a MIN and MAX buttons that can be used to display the min and max values detected until you reset.
Thank for the info.
😍🤩🎊🎉🎈
🙆🎉🎊
❤🎉❤🎉❤🎉❤🎉❤🎉
Hi friend thanks for another informative video. What is the name brand of you analog multimeter
wheeler W375
@@tevzTVTevatronics thank you for your response
Looks like it is only lasada that is selling it and I am unable to purchase one seeing that I'm from south africa
Hello Tevz, of course I enjoyed your video. Thanks for the information shared.
But one thing I understand in power supply is that whenever that happens, it supplies very high voltage to the motherboard and possibly the screen.
I have seen a situation where the optocoupler pins got rusty and then cut and the power supply very high voltage that destroyed the main board and screen on LG television and another on LG blu-ray player.
On the LG television, the sound IC got burnt and the CPU got burnt as well. Even after fixing the power supply the TV still did not work.
So tell me how did the Samsung main board survived the high voltage of 26 volts
The 26 volts that measured that going to the main board is not been used. as you can see it stays 26 volts even though the main is not connected. the 26 volts, supposed to be 12 volts is not directly connected to the audio amp,
the panel, etc.. Its have a MOSFET to switch it if the power is turned on. But the 5 volts is not normal. At the begining of the video. The 5 volts measure only a pulsing 1.8 volts, and the system will not turn on to that voltage situation. So no components were damaged. the voltage is pulsing because the PWM IC driver is sensing a high VCC voltages and automatically turning off. The line where cut due to corrosion.
Hey Mr T. When you are free can you show some of the TVs that couldn't be fixed? What was symptom, things you have checked and possible reasons why still faulty. Thanks.
Yes, I will, Its a content anyway.
@@tevzTVTevatronics I hate it when I can't fix something. Working on laptop now. Has symptom of only work on battery not AC. Tokin capacitors tantalum was replaced before to fix this issue last time but this time same problem comes back 3 years later but replacing capacitors does not fix issue. One more item to recycle bin.
@@Swenser Laptops are complicated circuits. I repair only 50% of them.
Hi . I'm working on 32 Samsung tv with white screen. I found L4 on lcd flex board shows short but I can't find any capacitors nearby on the same line showing short. Is it possible no smoothing capacitors at all and the inductor goes straight to ic? I'm thinking ic is faulty? Any ideas on why I can't find capacitors showing short? Or is short inside panel and I need to cut lines?
On the more expensive brand multimeter you have a bar graph which is more fast then display reading and you will se the fluctuation
thanks
Good work
You need a digital multimeter with MIN/MAX mode
Hello there!
What camera do you use for filming?0
samsund a53
Good great best job thanks for sharing ❤️ 👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾🙏👌👌
Hi sri
HI MR TEVZ I HAVE ONE QUESTION,WHAT IS THAT ERROR M OR SOMETHING THAT'S CAUSE OVER VOLTAGES ?
THANKS
HAVE A NICE DAY
the feddback
Hi
Please give the voltage details of how the mother board of Samsung LED TV works.
Hello Master I have a TV that it has a protective glass and inside of its glass is full of dust and I don't know how to disassemble it please let me know if you have a video.
Sorry I don't have.
Was that corrosion due to humility?
Humidity and corrosion of the copper tracks..
yes, it is.
Sir I am from India. My tv is working fine. Iffalcon, after 5 minutes. It was shutting down automatically. Can you tell me what the reason sir
main board, power supply, software, many reason.
San lugar yanpagawaan na yan
Laoag City po.
Sir ano po Ang sira Ng tv Philips Ang brand pag on Ang nataas Ang supply Ng led driver at big lang drop Ang supply..
check mo baka may open na led
😘😘😘😘😘😘😘😘😘😘
Pano mo na translate sa english....or kw ba mismo ng voice over by english language…?
Typing reading narator
Hi Mr Tevez I did not like or subcrib this video cos it was not any sub title and I am gonna to do the same when I see no subtitle on the video and also no request again!!!
Good luck friend…will miss you 😢😅
@@nicmate2543 haha. No. We must fight for him. Come back.
It does not appear if the video is just uploaded, wait for a while to generate.
Sorry tevz but this time subtitles were showed
And I donot know why first time it did not at all !
I told you before I am not perfect in english so I need the subtitles hard.
any way forgive me dear tevz.