The convergance menue is gone. I need to adjust the convergance badly but it is no longer in the menu

Remove the back cover. When looking from the rear of unit the printed circuit board lying flat on the left is the large signal or power supply/sweep board. The flyback transformer is at the left rear corner. A thick red high voltage wire and a thinner black focus wire come out of the top of it. You need to unclip wiring and maybe remove wiring holders. Pull PCB holder back and lift it out of its mounting rails to give clearance. disconnect either end of two white ribbon cables connecting the 2 flat boards. Be careful with these. It's easy to tear the conductors loose when you plug them back in. If that happens they must be replaced. Push up on the sweep board while releasing the plastic clips holding it to the carrier. 2 of the clips are inboard front and rear. raise the outer edge of the board to gain access to the bottom of it. FL221 is 1 of 3 red rectangular near the right rear corner (looking from the back) of the flyback transformer. FL221 is the middle one. Also check electrolytic capacitors on this board for swelling on their top and possible venting of electrolyte. (Another common fault of these chassis that will keep it from starting up.) Remove the back cover. When looking from the rear of unit the printed circuit board lying flat on the left is the large signal or power supply/sweep board. The flyback transformer is at the left rear corner. A thick red high voltage wire and a thinner black focus wire come out of the top of it. You need to unclip wiring and maybe remove wiring holders. Pull PCB holder back and lift it out of its mounting rails to give clearance. disconnect either end of two white ribbon cables connecting the 2 flat boards. Be careful with these. It's easy to tear the conductors loose when you plug them back in. If that happens they must be replaced. Push up on the sweep board while releasing the plastic clips holding it to the carrier. 2 of the clips are inboard front and rear. raise the outer edge of the board to gain access to the bottom of it. FL221 is 1 of 3 red rectangular near the right rear corner (looking from the back) of the flyback transformer. FL221 is the middle one. Also check electrolytic capacitors on this board for swelling on their top and possible venting of electrolyte. (Another common fault of these chassis that will keep it from starting up.)