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- Bastler mit Reparaturerfahrung
Hello, everyone, need help with SONY TV. Full story is that, lightning striked somewhere to internet providers side, through telephone line my modem was burned and TV was connected with LAN cable. MB was burned next to LAN input and processor was damaged as well. I bought new MB from ebay and replaced it. Now TV turns ON but stays black screen. I have menu sound while pressing buttons on remote and blinking red and green all the time without stoping. If I disconnect T-con ribbon cable there is no blinking and BL turns on together with TV and sound. I was thinking maybe there is nonvisible damage on T-CON board so ordered another from ebay. But problem is still there, exactly same as it was before. On power supply pcb pinout is printed and it is OK, but on MB there is no any. Maybe somebody have schematic diagram, because I need to check power supply to T-CON. I think problem is that some 12v or GND is missing because new MB is from KD-43XE8396. On both mother boards part numbers are exactly the same (173633712) 1-981-326-12. But my guess is that maybe there is some FW differance and T-CON isn't getting all needed pwr supply. If cable between MB and T-CON is connected on PWR supply pinout I don't have T-CON VCC12v and T-CON ON is 0v but if I disconnec't cable it's working fine with 12v on needed pins and 3.45v on TCON ON. Is it possible that cable was damaged? Or i shoupd look somethere else? Any hellp whould be apreciated.
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