silverball84
New member
I have a NT-2501 monitor out of an NFL blitz99 that has the dreaded horizontal line across the center. I figured probably the deflection IC has gone bad. Replaced both IC's in the vertical deflection circuit and no change. After playing with the vertical size pot I can get deflection but it has to be cranked way up, and the raster lines are spread way apart. Even when it's spread I still have a decent bold line in the middle of the screen. Some of the raster lines are backwards like it's trying to wrap around. I am looking at caps or possibly vertical output transistors next. I'm sure caps wouldn't hurt anyway. I am just lost on this thing now and it's super frustrating. Can anyone help me? This monitor is for someone else, and I really need to get it finished soon. Tired of sinking my parts and money. Thanks