My respects to you, professor..on this occasion, I read some information about the Philippine Islands...you have a lot of patience and pleasure in helping people understand the working of various electronic circuits, but that comes with time and experience.. in most cases, those with too much experience in the field of radio-tv repairs are interested in the detailed explanations.I also fall into this category, although I solve the small household repairs myself (the control board from the Whirpool automatic washing machine, the electronic board from the gas boiler-replacement of the non-polarized capacitor of 0.1 micro / 400 volts; the power supply of the computer of 450 watts-voltage of 5 volts is missing...small repairs in my free time, never at a professional level, like you)...but, with your kindness to explain in detail and with my little knowledge about this field, I hope to solve small problems at home...for this fact, I remain indebted to you and I promise to follow as many of your presentations as possible, adding a "big thank you" and, of course, the "like" button...gods bless you take care and good health, I wish you many more dollars in your account from customers satisfied with the repairs made by you
Thanks for this deep troubleshooting, I have 75' Vizio flat screen with three busted capacitor in the power board, I replaced the 3 capacitor but the TV will still not come on though the capacitors rating was 68uf 450 but I was able to get 47uf 450 to replace them but still not working no single light anywhere
Sorry for saying this but Mr. Tevz, your soldering iron and solder wire both are of very bad quality, see the amount of slag when the wire melts and also try to do clean soldering, when TV is opened it should be difficult to tell if TV has been repaired or not. Thank you for lovely videos 👍👍👍
Bellissimo video complimenti 👍 una domanda: I due diodi in parallelo e in corto che hai levato che tipo di funzione hanno, considerando poi che li hai sostituito con il diodo 460? Perché da due a un diodo? thank you so much👍
Welcome to switch mode hell, you have to change parts by the handful. Why leave out the Zener? TVs seem to live a long life, I assume in the Philippines.
Dijo que no lo reemplazaria, pero si llegara a venir una tensión de gate que supera la que soporta el fet este se puede poner en corto, pero algunos lo tienen y otros no .
What is the backlight voltage when set is in standby and voltage when set is turned on.At the beginning you said voltage was 60v and should go up but later on i saw the the same voltage on the meter when you said set was now working.Pls clarify or did i miss something.thank you
Yes, the Zener diode uses to regulate voltage. But the job of the Zener here is not to regulate voltage. This is to prevent a high voltage from entering the PWM driver controller. just like when the mosfet was damaged or got shorted, the Zener diode will do the work, it will get shorted and the high voltage now not going into the driver. So then the driver is will be ok. The Zener diode is about 18 volts. When the next time the mosfet gets shorted without the Zener diode the driver may also be damaged. I hope you understand.
Good morning Tevz. Hope you are good. Thanks for these updates in led tv inverter. I have 2 questions as usual. 😊 How do you know the polarity of the ultra fast diotes. Why you scratch the board to weld it on the ground. And not on the original soldering. And also why you join these soldering on 1 side to the ground. Why ziner diotes didn't replace.? I think ziner allow only a minimum voltage reverse. Because you didn't have the exact omh resistor. That's why you left the ziner Empty. If you had replace the ziner diote the voltage would go through ziner and won't reverse amount voltage back. May be am wrong also.🙏 Only you can help me to understand the circuit. Whereas me I have think 🤔 within my knowledge that I know. Have a good day Sir.
I scratch it to remove the varnish so the lead will flow, there is a polarity note where the anode of the diode goes. The zener diode use only for protection to the pwm driver. 0.17 ohms . Close to .33 ohms. If you put 2.2 ohms that's not going to work.
My respects to you, professor..on this occasion, I read some information about the Philippine Islands...you have a lot of patience and pleasure in helping people understand the working of various electronic circuits, but that comes with time and experience.. in most cases, those with too much experience in the field of radio-tv repairs are interested in the detailed explanations.I also fall into this category, although I solve the small household repairs myself (the control board from the Whirpool automatic washing machine, the electronic board from the gas boiler-replacement of the non-polarized capacitor of 0.1 micro / 400 volts; the power supply of the computer of 450 watts-voltage of 5 volts is missing...small repairs in my free time, never at a professional level, like you)...but, with your kindness to explain in detail and with my little knowledge about this field, I hope to solve small problems at home...for this fact, I remain indebted to you and I promise to follow as many of your presentations as possible, adding a "big thank you" and, of course, the "like" button...gods bless you take care and good health, I wish you many more dollars in your account from customers satisfied with the repairs made by you
If you fall to this category? You will easily learn it. Just keep fall to it. You also help this channel by sharing it. Thank you. God bless you.
Excellent method of explanation and servicing.
Sarap manuod sa channel mo po... Salamat sa mga videos mo sir.. very clear explaination.. more blessings po sa inyo..
Salamat sa panunuod
Exellent ......
I like how you do ur work
Good morning sir.Thanks for your valuable information
Hallo sir this is Mirza I watch your video
It's very useful for me thanks
You make it look too easy… 👍
Tevz , high. You are, in this man thanks 👍
👍 good
Very nice tutorial and repair sir thanks for sharing your knowledge sir
Glad you liked it
Muy bien, seguimos.
Good morning sir thanks for sharing your video im watching here in the Philippines
Good morning!
Thank you for sharing, nice repair 👍
No problem 👍
Nice tutorials make more videos sir
Thank you, I will
Отличная работа!!! Лайк!
عالی بود،خسته نباشید
sorry I dont understand.
Sir good work
Thanks for this deep troubleshooting, I have 75' Vizio flat screen with three busted capacitor in the power board, I replaced the 3 capacitor but the TV will still not come on though the capacitors rating was 68uf 450 but I was able to get 47uf 450 to replace them but still not working no single light anywhere
Maybe the circuit's power supply is already damaged. Because of the capacitor is busted, it may also damage the other components.
@@tevzTVTevatronics Ok, please what do advise me to check on the power board now
@@tonyalale3808 Check voltages to the main power supply. if there is a voltage at the secondary out. maim supply is good.
Good
Sharing is happy ness
Osm sir
sir exelint good works 110% good exelint
Many many thanks
Sorry for saying this but Mr. Tevz, your soldering iron and solder wire both are of very bad quality, see the amount of slag when the wire melts and also try to do clean soldering, when TV is opened it should be difficult to tell if TV has been repaired or not.
Thank you for lovely videos 👍👍👍
Hi. Thank you for sharing. you got the knowledge why not use the same parts for repair. They are cheap. Or is it an improvement on a wrong design
Thus components are not available here in my area. Yes, it's also modifying or improving the circuit.
Bellissimo video complimenti 👍 una domanda:
I due diodi in parallelo e in corto che hai levato che tipo di funzione hanno, considerando poi che li hai sostituito con il diodo 460? Perché da due a un diodo?
thank you so much👍
Ok🌷🌹🌷
Good boy
Welcome to switch mode hell, you have to change parts by the handful. Why leave out the Zener? TVs seem to live a long life, I assume in the Philippines.
Bravo
YYeeesssss.....
👍👍
👍👍👍👍
👍👍👍👍👍
Watching ED TECH PH
Thanks for watching
Use hot air gun bro
El diodo zener no era necesario reemplazarlo? Saludos desde Jipijapa-Manabí-Ecuador.
por que crees que no se nesecitaba remplazar si marcaba en coerto
@@gerardoacosta5396 Estoy haciendo una pregunta. Se ve en el vídeo que retira el diodo pero en ningún momento se ve que lo reemplace. Saludos.
Dijo que no lo reemplazaria, pero si llegara a venir una tensión de gate que supera la que soporta el fet este se puede poner en corto, pero algunos lo tienen y otros no .
What is the backlight voltage when set is in standby and voltage when set is turned on.At the beginning you said voltage was 60v and should go up but later on i saw the the same voltage on the meter when you said set was now working.Pls clarify or did i miss something.thank you
Si, yo también tengo la misma duda.
I have a sharp led tv model le32lc2651 which when connected to electricity it immediately trips mcb. please help information thanks.
I have and imperial it have know voltage to the led an standby wen turned on just for a brief second the voltage goes up then to nth need help.
good
Thanks
hallo sar B34 no jagah koi or daiod.ple thanks.i am prabhat.bavla
And the zener? Is ok ? Its supose to be there regulating some voltaje
Yes, the Zener diode uses to regulate voltage. But the job of the Zener here is not to regulate voltage. This is to prevent a high voltage from entering the PWM driver controller. just like when the mosfet was damaged or got shorted, the Zener diode will do the work, it will get shorted and the high voltage now not going into the driver. So then the driver is will be ok. The Zener diode is about 18 volts. When the next time the mosfet gets shorted without the Zener diode the driver may also be damaged. I hope you understand.
@@tevzTVTevatronics Yes i underdtand very clear , thak you very much for your time
Very nice video , but there should be the zener diode because in future if the output MOSFET get shorted the PWM driver IC also affected.
@@bablaghosh5476 Yes you're right.
Thank you. Where you from?
From Philipines
Please try to use a digital Multimeter
I use digital in my other videos
What was the purpose of the Zener diode connected to the gate and why did not you replace it please ?
Protetion of the pwm ic
@@tevzTVTevatronics Voltage regulator ? Why you did not replace it please ?
@@olivierj.2435 It's okay not to replace it, the zener diode is not used to regulate voltage here.
Yung zener diode boss anong pinalit mo?
Good morning Tevz.
Hope you are good.
Thanks for these updates in led tv inverter.
I have 2 questions as usual. 😊
How do you know the polarity of the ultra fast diotes.
Why you scratch the board to weld it on the ground. And not on the original soldering. And also why you join these soldering on 1 side to the ground.
Why ziner diotes didn't replace.?
I think ziner allow only a minimum voltage reverse. Because you didn't have the exact omh resistor. That's why you left the ziner Empty.
If you had replace the ziner diote the voltage would go through ziner and won't reverse amount voltage back.
May be am wrong also.🙏
Only you can help me to understand the circuit.
Whereas me I have think 🤔 within my knowledge that I know.
Have a good day Sir.
I scratch it to remove the varnish so the lead will flow, there is a polarity note where the anode of the diode goes. The zener diode use only for protection to the pwm driver. 0.17 ohms . Close to .33 ohms. If you put 2.2 ohms that's not going to work.
@@tevzTVTevatronics thanks once again for your support and response.
Have a good day sir.
what was the value of the zener diode?
24 volts
👍👏😄😄
Why you not install znior diod???
IGBT J30-127 other eqvalent number
30f127
Oh ya....dari mana sih asal negara bapak ..?
What you do about zener diode.
The zener diode is for protection only,
Where are you from?
Island of the Philippines
Thanks
You're welcome.
@@tevzTVTevatronics old is gold
Diode namber
MUR460