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TVSamsung CK-20H1T cu probleme!!

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Salut!Am primit la reparat un tv Samsung cu urmatorul defect:Dupa ce il pornesc apar imagine si sunet normale si dupa 2 secunde dispare imaginea (se intuneca),sunetul ramane normal ,am icercat sa maresc SCREEN si rastrul se face verde si cu cursa inversa ,din cind in cand pentru o fractiune de secunda apare imagine normala ,am suspectat finalul video TDA6107Q si l-am inlocuit dar fara succes defectul persista ,tensiunile pe IN R;G;B -0,33V,iar pe OUT R;G;B=175V acum defectul pare sa provina din jungla dar problema este ca nu am schema acestui tv sa pot masura ce anume nu ajunge in jungla de aceea va rog sa ma ajutati cu o schema si ceva sfaturi daca ati mai intilnit acest defect.Proc-SPM-515ER1;memorie 24c04;BV-TDA8356 ,sasiu AA41.

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Scoate conectorul care duce la placa rgb,si vezi ce se intampla:daca se blocheaza tubul cauti defectul in zona circuitului jungla.Daca se mentine defectul cauti pe placa rgb ,sau posibil sa intre in scurt filament cu catod verde si atunci poti alimenta filamentul separat si izolat fata de masa.

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