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Hi, I a Sony WEGA KV-27HS420 Hi-Scan, and it has problems because the picture flickers/rolls a lot in all the inputs except HDMI. I observed that the menu box isn't affected by the flickering. Plus, in the HDMI input, the colors are just shades of green and red, on the other inputs, the colors are ok, and again the colors of the menu are ok on HDMI. Please I need advice on what's going on with the tv. I was told by a technician that the MY board is failling and causing this. It sounds logical because its present in all inputs but its not present in the menu box. I uploaded two videos of the issue. I hope you can help me to determine what's the cause of this and how I can repair it. Thanks in advance.