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TV LG 32LH500D-ZA...sursa defecta!

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Buna ziua,

AM televizorul din titlu, TV LG 32LH500D si s-a stins brusc. L-am desfacut si am constatat ca e defecta sursa.

Mai exact, nu ajunge tensiune pe condensatorii mari, de filtraj.

Am gasit arsa rezistenta de 0,33ohmi si un condensator de 100pF "impuscat".

Am inlocuit si la alimentare, in prima secunda pare ca merge dar dupa arde iar rezistenta de 0,33.

Am continuat masuratorile si am gasit mosfetul 80R1K0CE de pe radiatorul mic in scurt si dioda zenner de pe spatele placii care pare in scurt,

cel putin masurata pe placa.

Atasez si cateva imagini.

Cu ce as putea continua?

Multumesc.

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Acum 3 ore, iod2 a spus:

in 98% din cazuri se duce si controlerul o data cu mosul.

100% chiar 

schimbati pf6005 si pe langa el mai aveti deobicei niste rezistente smd care se duc si un 1n4148 parca

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Normal ca schimbam si controlerul si eventual alte piese defecte .., eu m-am referit la a incerca reparatia sursei originale .

Edited by dan-a2
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Am cumparat pana la urma o sursa de alimentare de la un tv cu ecran spart si am rezolvat problema.

Sursa defecta ramane deocamdata in aer pana o sa mai am timp de reparat la ea.

Multumesc deocamdata de raspunsuri tuturor :)

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