Mitsubishi VS-50607 Short Vertical

I am working on a Mistubishi VS-50607 Rear
projection set. I have a short picture at the top of the screen. I
replaced the 100uf/50v caps in the convergence circuit along with the
100uf/50v cap in the vertical circuit.....It does not seem as if the
IC's are bad......this set uses the STK392-110 convergence IC's I am
not able to read the vertical output ID, does anyone have a manual or
some ideas for me?????