1.Model LG LD650-ZC
2.The screen remains black there isn't even a logo
3.The service menu is inaccessible because there is no image on the screen.
4.No, I don't know, but I can't because there's no screen.
The device originally had an LG motherboard, but the processor was faulty, so it couldn't be repaired. I removed the LG LD650-ZC model and replaced it with this Vestel 17MB211S motherboard, but there's no display. The panel number is LC420WUH-SCA1. I don't understand why there's no image.
OK.
1. You have no image because the motherboard has the software for another panel
2. You have no image because the motherboard and the panel are not compatible or you have a hardware defect
3. If you have no image, you cannot save or rewrite the panel profile (if you know how to do it without an image).
4. To try something, you need the full software, not the panel profile
5. I do not have the full software archive for what you have on your TV
6. If you know (you OR SOMEONE ELSE) what VESTEL equivalent the LC420WUH-(SC)(A1) panel has, maybe we can find some software.
1. You have no image because the motherboard has the software for another panel
2. You have no image because the motherboard and the panel are not compatible or you have a hardware defect
3. If you have no image, you cannot save or rewrite the panel profile (if you know how to do it without an image).
4. To try something, you need the full software, not the panel profile
5. I do not have the full software archive for what you have on your TV
6. If you know (you OR SOMEONE ELSE) what VESTEL equivalent the LC420WUH-(SC)(A1) panel has, maybe we can find some software.
I found this panel software somewhere and I'd like to share it with you if you'd like.