I recapped a CRT monitor of mine (an IBM type 8515) because I had to leave it on for several minutes before starting my computer otherwise it would turn itself off. Anyway, I finally replaced all the caps and it seems to be working except that it only displays a single blue, horizontal line. When I turn on one of my computers I can see the line's color change in response so I'm guessing that everything else is working correctly.

Anyway, this was the first recapping I've done so I'm already out of my depth here and am really hoping someone can point me in the right direction. I will say that to avoid having to buy way too many different capacitors I decided that when there were multiple caps at the same capacitance but different voltages that I would just get capacitors for the higher voltage, unless the difference was astronomical like 35V to 200V, since looking it up it seems voltage doesn't matter as long as it's higher than or the same as what's required. That's the only thing I can think of that I might have done wrong, other than misreading a single capacitor's value but I think I correctly deduced its value, and besides I'm guessing this problem is from either the board connected directly to the back of the tube, or the big scary thing connected to that suction cup thing towards the top front of the tube.

Thank you in advance.