Sony kp57ws500 convergence

Hello all,

I know that convergence was covered in detail in other threads on this forum and I have to say it has helped me a lot to understand and perform a repair myself.

However, I am stuck...

greeen and blue colors line up fine, but not red. As soon as I turn the tv, the fuse in ps8003 position opens up. I have replaced 3 of them already in the same spot. MM tests fuse ok before the tv goes on.

Please help.

Thanks