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Hi, I can help you to solve your Sony tv problem. Is it Sony KP-51HW40 tv or any other model? How many times red light start blinking after three seconds long pause? Let me know to proceed, can you check voltages with multimeter in tv circuit board? Thanks.
Its called the Convergence.
Its likely a device on one of the main control boards is failing.
these are a common issue on the projector tv's usualy it will be a whole board replacment, OR componnt level trace and replace. This is something unless you are familiar doing can be quite hazardous.
If your not sure get a local shop to give a free estimate, all my projection tv's have done this with time, you can even go into the menus and realign it through tv settings, but sometimes they will start to wander out again.
I had the same problem. i was told by one of these so-called experts @ fixya that my flyback transformer needed to be replaced (the 8 blinks on the standby was the indicator). but i recently replaced it and im having the same problem. sorry. no advice. good luck.
I read it online that this is a very simple problem. It needs highvoltage splitter. I tried to open the front panel to see where the splitter is. However, I need some hint as to how to open the front panel. Good luck.