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LCD TVs - LED

Tv / monitor samsung LN-S1951W turn the lamps on and off

rogerjosue

4.392

hace 5 años

hace 5 años

3.jpg [2.28MB] [url=/ver-adjunto/aHR0cHM6Ly9hZGp1bnRvcy55b3JlcGFyby5jb20vZGVmYXVsdC8wMDA0LzcxLzItMzU3MTkuanBn]

2. /attach/attach_25.png[/img[1.jpg[2.07mb[[/url[Goodmorningcolleagues,IamrepairingtheTVdescribedabove,theflawisthatwhenIturnitontheimageappearsandafterafewsecondsthescreenremainsblack,lightingthescreenwithalampdistinguishesthatifthereisanimagebutthelampshavegoneout,whencheckingthevoltageoutputthatgoestothelampsitturnsoutthatthereisnovoltage,thismademesuspectthatitcouldbethatsomeofthelampswerecausingoverconsumptionandsotheygoout,butthereisabehaviorIliethatIstoppedtouncoverthescreentocheckthelampsandisthatwhenheatingtheinsertorcardthatisresponsibleforprovidingthevoltageforthelampstheTVstaysnormal,mydoubtisthatthecardbeingmentionedintheTViscoldTakeanormalpicturebutthelampsgooutandwhenthatcardisheated,theTVworksnormallywithitsoperatingvoltagessothatthelampsturnon.Themilliondollarquestion,whatshouldIdotoknowifthebadgeisbadorwithoutthelampsthedefective?Iwilltrytouploadsomephotostofacilitateorientation,seeyoulater.

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foxifern

65

hace 5 años

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hace 5 años

It tries to give individual heating to each of the transistors or IC when the work changes the piece that when heating works

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rogerjosue

4.392

hace 5 años

Good morning Foxifern, the test of heating one by one the integrated I did it and yes, when heating the largest integrated of those seen in the images sent the lamps stay lit indicating that this IC is not working properly, Now the problem is that getting those parts here where I live is almost like wanting to touch the sun, so I'm thinking of replacing the inverter insert making some kind of adaptation for example with relay, but how do I solve the feedback issue?

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foxifern

65

hace 5 años

you can't, on the net you find the ic for purchase, in the images you don't see the reference of the ic,

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rogerjosue

4.392

hace 5 años

Hello foxifern, I have asked a new question to consider that I am resolved to detect that the inverter is damaged, you can see the new question in this link.
https://www.yoreparo.com/tv/televisores/lcd/led/preguntas/6093214/tv-monitor-samsung-ln-s1951w-reempla--main-invertir-por-otro-circuit

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