i have an horizontal white line in a black screen. i have an idea that could be the vertical modul but have no electrical schema to identify the capacitors or other componenets
You can usually find the bad caps with an ESR meter. There are only 3 or 4 capacitors in that circuit. Also, if you have completely lost vertical deflection you might want to replace the vertical ic. I always make it a habit to change the caps regardless. They are pretty cheap.