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poplex22

Samsung UE32T4302AK lipsa lumina(imagine)

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va salut, la acest tv :  UE32T4302, mainboard : combi sursa+digital BN96-51894B vdm-kant-s2-32, panel : CY-JN032AGLR3V,

- problema este ca exista sunet, se aprind ledurile dar nu am lumina(imagine) pe ecran, va rog cateva sfaturi daca ati intalnit asa ceva, sa fie procesorul pe bile cu lipsa contacte ??

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Ala e TCON-ul , core Samsung

Ori TCON ori cel mai probabil ecran defect

Masoara si apoi intreaba dand informatii concrete

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Acum 1 oră, poplex22 a spus:

am tot masurat pe placa si in afara de 12,5v si 3,3v nu am, sigur convertorul dc/dc este blocat !, cum il deblochez ?

- revin cu o poza la pcb

 

Nu se deblocheaza se schimba, insa pana sa il schimbi masoara condensatori smd de pe langa integrat

 

https://www.google.com/search?q=SM4186&rlz=1C1CHBD_roRO905RO905&sxsrf=ALeKk03emjOJHNVFf9A_vkc8EUc3s1wU0w:1622658565417&tbm=isch&source=iu&ictx=1&fir=2nA2E7yI_mOviM%2CBYhO3AcyfBMxdM%2C_&vet=1&usg=AI4_-kQPqXPm8O4iew5d4dsXY54NUTHMKA&sa=X&ved=2ahUKEwjdjoibyvnwAhXYgP0HHfhqDFwQ9QF6BAgTEAE#imgrc=xnWjfdam4wFRrM

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conzii sunt buni, pe net indienii deblocheaza convertorul taind trasee ce meg spre ecran, cauta semnalul CKV (??) stinga/dreapta si taie cel din stinga ?!

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Acum 3 minute, poplex22 a spus:

conzii sunt buni, pe net indienii deblocheaza convertorul taind trasee ce meg spre ecran, cauta semnalul CKV (??) stinga/dreapta si taie cel din stinga ?!

 

Asta nu inseamna ca deblocheaza integratul, asta inseamna ca sticla are scurt

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