Yo, justamente tengo está misma fuente de energía pero nose si el daño pueda ser el mismo, pues en mi caso mi tv enciende el bombillo rojo pero cuando le doy encender se apaga ese bombillo rojo y no enciende el tv y solo queda un pequeño ruido interno como un pequeño chasquido, como que crees amigo que podría a llegar ser el problema. El modelo es BN44-00192A exactamente la misma placa.
Hello, Thanck you for making thouse very instructives videos,and i just want to tell you that i changr a few days ago the same chip,in the same power supply board,because the 5v st.by missing, and it is steel no working.I readed about fan6755,and it.s seemed it need at least 7,5v on VIN pin,to start,and i can see only 5v.It is posible to have an internal short, and this voltage couldn,t reach the minim 7v to make the ic start.Please help me with some more informations,about what should i check like fan ic not blow again.One more think.The mos-fet from the stand by source was bad. I measure 320v on the Source pin,and the same,on the Drain pin.I change the FET,and now i have 320v only on pin 2.I bought a new fan6755 ,but i don.t know what check to avoid to blow again.. I have the schematic .
Hi, Try to check all the electrolytic capacitors, also if you have an LCR Meter you can test them out of board.You can have some capacitors that make you trouble..
Mersi pentru raspuns...te-as ruga, daca se poate , sa te uiti putin pe schema sursei de alimentare, iar eu iti voi spune ce tensiuni am masurat pe chipul FAN 6755U.Nu credeam ca un chip ca asta, poate complica atat lucrurile.Am citit datasheet despre ic , si am inteles cum functioneaza,.Am masurat toate piesele si erau ok, mai putin o dioda zener, de 27v de care nu sunt sigur ca e in stare buna...Nu am sursa de alimentare , sa o probez...Mersi inca odata, si daca ai avea putin timp, ajutama te rog .Iti trimit schema, sau iti dau linkul sa o descarci.
Salut Părinții au TV ca și al Dvs. La ei TV se stinge aleatoriu și apoi se pornește (face blink ledul roșu). Uneori lucrează fără probleme câteva ore la rând, in alte zile nu pornește, sau are nevoie de timp sa pornească. Am desfăcut TV-ul, l-am șters de praf, am scos ambele placi PCB (alimentarea și cea de logica), vizual nu au nici un defect (am inspectat vizual cu atenție toate condensatoarele, și sudura). Am făcut și reset. Dați-mi va rog un sfat la ce sa mai atrag atenția, ce poate fi?
S-a rezolvat. Problema a fost in sudura proasta la transistor. Vizual nu se observa, dar după ce am mișcat puțin tranzistorul au apărut crăpături in sudura, așa ca l-am reparat prin întărirea sudurii la tranzistor. Mulțumesc.
hi, how do you diagnose what the problem? and how do you know that you need to replace a resistor? my tv LE32R86BD has power board BN44-00191A which looks different than yours but I am not sure what I should replace. it is doing the same thing but when i heat up the capacitors on the main board, the tv turns on and i get blue screen with lines all over it (vertical and horizontal lines). some photos of my tv: ibb.co/album/eCFjva
@@TechnicalsGuider just by looking at the capacitors on the power board, they all seem good. nothing swollen or leaking. but I will buy a multimeter tomorrow and check them with that as well.
Hello my board is an bn44-00213a and it has been burned in the section where the CM810 the blue ceramic capacitor is located. So my question is what type of capacitor is that to replace it. Thank you all
Хобби
Thank you very much. My power supply BN44-00192A is ok again after changing 0,22 ohmios resistor :-)
You welcome!
sir apka avery hu thanks
Yo, justamente tengo está misma fuente de energía pero nose si el daño pueda ser el mismo, pues en mi caso mi tv enciende el bombillo rojo pero cuando le doy encender se apaga ese bombillo rojo y no enciende el tv y solo queda un pequeño ruido interno como un pequeño chasquido, como que crees amigo que podría a llegar ser el problema. El modelo es BN44-00192A exactamente la misma placa.
Hello,
Thanck you for making thouse very instructives videos,and i just want to tell you that i changr a few days ago the same chip,in the same power supply board,because the 5v st.by missing, and it is steel no working.I readed about fan6755,and it.s seemed it need at least 7,5v on VIN pin,to start,and i can see only 5v.It is posible to have an internal short, and this voltage couldn,t
reach the minim 7v to make the ic start.Please help me with some more informations,about what should i check like fan ic not blow again.One more think.The mos-fet from the stand by source was bad. I measure 320v on the Source pin,and the same,on the Drain pin.I change the FET,and now i have 320v only on pin 2.I bought a new fan6755 ,but i don.t know what check to avoid to blow again..
I have the schematic .
Hi,
Try to check all the electrolytic capacitors, also if you have an LCR Meter you can test them out of board.You can have some capacitors that make you trouble..
Mersi pentru raspuns...te-as ruga, daca se poate , sa te uiti putin pe schema sursei de alimentare, iar eu iti voi spune ce tensiuni am masurat pe chipul FAN 6755U.Nu credeam ca un chip ca asta, poate complica atat lucrurile.Am citit datasheet despre ic , si am inteles cum functioneaza,.Am masurat toate piesele si erau ok, mai putin o dioda zener, de 27v de care nu sunt sigur ca e in stare buna...Nu am sursa de alimentare , sa o probez...Mersi inca odata, si daca ai avea putin timp, ajutama te rog .Iti trimit schema, sau iti dau linkul sa o descarci.
When i replace 0.22 ohm resistor. It died again after 1 minute. Help me
Kopacabbana!!
Sir ji aap ne Jo resistance change kari h uska no nahi dikhaya back Ground ki band kijiye aapna sound dijiye sir and thanks
you welcome
You very welcome
Salut
Părinții au TV ca și al Dvs. La ei TV se stinge aleatoriu și apoi se pornește (face blink ledul roșu). Uneori lucrează fără probleme câteva ore la rând, in alte zile nu pornește, sau are nevoie de timp sa pornească. Am desfăcut TV-ul, l-am șters de praf, am scos ambele placi PCB (alimentarea și cea de logica), vizual nu au nici un defect (am inspectat vizual cu atenție toate condensatoarele, și sudura). Am făcut și reset. Dați-mi va rog un sfat la ce sa mai atrag atenția, ce poate fi?
Căutați piesa pe care am schimbat-o eu in video și înlocuiți
@@TechnicalsGuider Ok, am sa schimb rezistorul. Revin cu feedback. Multumesc.
S-a rezolvat. Problema a fost in sudura proasta la transistor. Vizual nu se observa, dar după ce am mișcat puțin tranzistorul au apărut crăpături in sudura, așa ca l-am reparat prin întărirea sudurii la tranzistor. Mulțumesc.
hi, how do you diagnose what the problem? and how do you know that you need to replace a resistor? my tv LE32R86BD has power board BN44-00191A which looks different than yours but I am not sure what I should replace. it is doing the same thing but when i heat up the capacitors on the main board, the tv turns on and i get blue screen with lines all over it (vertical and horizontal lines). some photos of my tv: ibb.co/album/eCFjva
Hi, it seems that you have a different problem. Check all electrolytic capacitors first (the biggest one)
@@TechnicalsGuider just by looking at the capacitors on the power board, they all seem good. nothing swollen or leaking. but I will buy a multimeter tomorrow and check them with that as well.
@@TechnicalsGuider also, I forgot to mention that the power board is making a squeaky sound whenever the tV is plugged in
Hello my board is an bn44-00213a and it has been burned in the section where the CM810 the blue ceramic capacitor is located. So my question is what type of capacitor is that to replace it. Thank you all
you can find schematics to download here: www.eserviceinfo.com/pdfview.php?fileid=59296
I am not sure what you asked, but i found this in the schematics: ""CM810 221K 1KV"" ------> download document and find out what do you need.
Thanck you very much 😊 this is the ceramic capacitor i was looking for i couldn't figure out the voltage, thanks
@@asartzis super!
Salut am un TV samsung întra curent în el și nu se mai aprinde, cum ma poți ajuta.
Salutare, cel mai probabil are ceva ars la sursa de alimentare, verifica condesatorii electrolitici prima data
Заказать данный блок питания вы можете у нас на сайте
nekrontag.ru.com/bn44-00191b-ktl-su10054-7008/
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