Jvc av56wp74 rear projection tv

I have same problem but mine is the blue thats messed up.  When you use the link below my blue looks exactly bowed in like the blue lines in the picture doing the convergance.  Bought a relacment Convergence out PWB (ssb-5068a-m2) from a JVC service center and it didnt change a thing.  What else could cause the blue to be bowed at top and bottom like that?  When i try to manually converge it i can move all red and green both sideways and up and down, however the blue only lets me move it left and right i can not move it up and down at all.  And it's off pretty far in the center top and bottom but close to aligned at the edges.  Any ideas? I have same problem but mine is the blue thats messed up.  When you use the link below my blue looks exactly bowed in like the blue lines in the picture doing the convergance.  Bought a relacment Convergence out PWB (ssb-5068a-m2) from a JVC service center and it didnt change a thing.  What else could cause the blue to be bowed at top and bottom like that?  When i try to manually converge it i can move all red and green both sideways and up and down, however the blue only lets me move it left and right i can not move it up and down at all.  And it's off pretty far in the center top and bottom but close to aligned at the edges.  Any ideas?