Very useful.Thank.. An important sugestion .... please use numbering for your videoes.thisis useful to remember by visitors to review and return in the future .
Hello Tevz I have been very trill with your levelled deep and vast knowledge in electronics I really appreciate your relentless instructive posts of which am one of most benefited .may GOD reward you, I had a pfc issue with 26 inch Samsung lcd when I did the bypass it couldn't work .Please help how do I boost 300vdc to 390vdc to make it work thnx a lot
The only way to boost it to 390 volts is to repair the PFC. There are resistors connected to the main capacitor that you can modify to somehow start the main power supply. Example a resistor connected to b+ of the main capacitor value of 3.3 mega ohms. try to parallel a 2 mega ohm of that resistor which is connected to the B+ main capacitor.
Pienso que para aumentar la tensión de 300 voltios se podría intentar hacer un doblador de tensión como traían los viejos tv de TRC que servía para trabajar con 110 y 220v.
One time I'll try do that , the tv work fine, but after short time can back, may be the power MOSFET of forward work so hard with 300 volts. Hope you are lukie this time. Excusme my bad English, Im Spanish from Argentina.
Hello. If there is a short circuit in the circuit again after the repair, how will you notice the short circuit despite putting resistance in the circuit input
Resp Sir! Very Nice Sir. Sir My HP Monitor Balack Sreen CPU Connected after Vertical Lines Sir Where the Problem Sir Please Advise Sir. -- ChinnaRao Paderu Andhrapradesh
If properly removed, it'll work, unless other components are faulty. The main disadvantage of removing the PFC circuit is the poor power management caused by the inconsistent current drawn.
sir i have a question about mosfet removing and replace to wire from schematic if you 300v and gnd are connected i think a short have can you explain pleaase and big thank
hello your video concerning food interests me. I have to admit that I didn't understand anything. can we remove the mosfet and cut a line and it works? help me I don't understand. I want to understand .
when turned on, there is no image, the indicator is still on, the screen lights up, there are black stripes on the candinsator for the backlight, 40 volts.
If I was the customer and saw how you undertake this repair (if indeed you are actually repairing it) I would ask for a refund and take the TV elsewhere. Absolutely brutal removal of components with the least possible amount of tools - try solder wick
Tevz, you are very practical and an excellent technician. Please keep teaching us how to fix components like a professional !! Best.
Thank you so much you are a great teacher I have be facing this problem for so long you have given me solution today ❤❤❤
Nice job disabling the APFC circuit, in some smps the protection circuit has to be disabled also. Great work.
Good job thanx for sharing Mr Tevz the master of electronics
Thanks for watching!
Imádom nézni ezt az ember munkáját. Kiváló.
thank you very much sir for sharing your knowledge...
very good job, i thing you are the king of repairmen
thanks for helping us cos we are learning from each of ur videos
I've known the pfc to fail on atx psus. Good video and always appreciated your work x
Thanks 👍
Hello sir fewest day a go I do not seen your post I hope there is no problem thank for your good job
All good
Very useful.Thank..
An important sugestion .... please use numbering for your videoes.thisis useful to remember by visitors to review and return in the future .
Thanks, sir, for sharing this video
I just love the random tv sounds in the background.
Informative indeed
Sir can you make 1 videos explaining the schematic diagram of TV power supply with pfc section that will be helpful for us
Merci bon travail comme toujours
💐very nice video sirji thank you,,,,,, 🙏.
Hi friend thank you for the informative video
Great job sir❤
بروفيسير والله تسلم ايدك
nice job master as always
Thanks. Good. Information 💯
Nice one lakay
Hello Tevz I have been very trill with your levelled deep and vast knowledge in electronics I really appreciate your relentless instructive posts of which am one of most benefited .may GOD reward you, I had a pfc issue with 26 inch Samsung lcd when I did the bypass it couldn't work .Please help how do I boost 300vdc to 390vdc to make it work thnx a lot
The only way to boost it to 390 volts is to repair the PFC. There are resistors connected to the main capacitor that you can modify to somehow start the main power supply. Example a resistor connected to b+ of the main capacitor value of 3.3 mega ohms. try to parallel a 2 mega ohm of that resistor which is connected to the B+ main capacitor.
Pienso que para aumentar la tensión de 300 voltios se podría intentar hacer un doblador de tensión como traían los viejos tv de TRC que servía para trabajar con 110 y 220v.
Great work as always thank you.may you consider show how to modifiy dual mosfet power supply like what you do with str w6053 .thank you
good work
Salamat poh sa magandang idea ser
Thanks for sharing God bless
Very nice vdo sir ❤
Terima kasih pelajarannya
Very good video 🎉
Helo I am fan of tevz your channel always watching
Greetings from Venezuela, excellent video, one question: what resistance did you place for protection?
220 ohms
Good job sir ❤
salamat sir sa video,God bless..
Nice master
Your all video is nice 👍👍👍👍 u
Good job 👍
Good work❤
Thanks you it is very interested sir.
Saludos mi amigo, presente en su nuevo video, saludos desde México.
One time I'll try do that , the tv work fine, but after short time can back, may be the power MOSFET of forward work so hard with 300 volts. Hope you are lukie this time. Excusme my bad English, Im Spanish from Argentina.
Thank you for sharing host
It's my pleasure
Thanks a lot for the video.👍
Hello. If there is a short circuit in the circuit again after the repair, how will you notice the short circuit despite putting resistance in the circuit input
شكرا،لمشاركة التجربة
This is phenomena 😮
any body can givme a hint by the way goood work sr yor videos are very good
You just short the connection of the diode which is directly goes to the output and cut the mosfet connection, is that it?
yes
Thanks sir
Where can I find a video describing such a pcb with its diagram please
Resp Sir! Very Nice Sir. Sir My HP Monitor Balack Sreen CPU Connected after Vertical Lines Sir Where the Problem Sir Please Advise Sir. -- ChinnaRao Paderu Andhrapradesh
cut ckv
How much did it cost the client...
Thank you sir
Hello, Tevz. I hope you're well 🎉
amazing
Thanks
Hola tevz y como hace la fuente el suicheo quede perdido si quito el mosfet y el pfc quede gringo como decimos en nuestro pais🤔
I just removed the PFC become like a normal power supply circuit.
good Hello, I am confused. Will it work or not when PFC is removed in all TVs?
If properly removed, it'll work, unless other components are faulty.
The main disadvantage of removing the PFC circuit is the poor power management caused by the inconsistent current drawn.
i have a question
i have a sharp tv that makes a hard pop when turned off , could it be a capacitor in the audio circuit?
Hi tevz ,i have a saba led tv ,always in standby don't switch on .all diodes in secondary are ok .can you help thanks
sir i have a question about mosfet removing and replace to wire from schematic if you 300v and gnd are connected i think a short have can you explain pleaase and big thank
No short, look at the diagram.
But you have replace thé MOSFET of wire in vidéo Big thanks❤@@tevzTVTevatronics
@@techniqueskhalid9873 that was a diode, not the mosfet.
❤❤❤ thank you Sir@@tevzTVTevatronics
Hi sir iam in tamilnadu
Did you repair that tv?
hello your video concerning food interests me. I have to admit that I didn't understand anything. can we remove the mosfet and cut a line and it works? help me I don't understand. I want to understand .
keep watching
why did you cut the trace that power the PFC circuit IC? removing the PFC transistor and diode was not enough?
Hello, do you always bypass PFC if it is defective?
if necesary
Thank you
Thanks
👏👏
hellow you took two pices of the board it realy don need them for the right wayb t work of the tv , I don understend how it work whitout the mosfet
Thank you sir ji🙏🏻
Most welcome
MOSFET& rectifier also shorted?????? what's going on?& mian capacitor?????
where can you download the circuit diagram for the Skyworth TV Model No.: 32E3000 board number TP.V53WT.PB733 32STD2000
I have no idea.
❤❤❤❤❤❤❤
Resistance value type please sir
220 ohms
Thanks sir
when turned on, there is no image, the indicator is still on, the screen lights up, there are black stripes on the candinsator for the backlight, 40 volts.
Why don't you remove rhe varistors sir
أنا فني الكترونيات من مصر ممكن نتواصل معك
but if there is only 300v on main supply, not 390v, then the smps wont start. thats what i experienced. my country is 220vac btw.
What is a PFC circute??
❤
hello po san po location nyo and san po kayo ma cocontact?
Sir idol dina po ba aalisin ang WD40 sa board, ang ibig kopo sabihin dina po ba lilinisin like thinner po?
hindi na
WD40 is non conductive, its safe to use on circuit boards..
The process will not always work🙂
لقد اوقفت عمل pfc
Harang
I don't know??? I would think that you wouldn't have to remove components and just jumper wire to bypass the PFC.
what's the meaning of the pfc?????
power factor correction
На люмінесцентних лампах не запрацює
21:42. ?! Video editing
😂
ther,s adestortion near you
If I was the customer and saw how you undertake this repair (if indeed you are actually repairing it) I would ask for a refund and take the TV elsewhere. Absolutely brutal removal of components with the least possible amount of tools - try solder wick
Greetings: WD40 Mixed With Electronics? Hmmmm. O goody. U DIY / Ujunk idiots do that
...but Not in my shop!