K7400 fades out to no neck glow

[Fian34]

I have a 25 inch 7400 in a midway game. The screen always looked dim but we were planning on selling the game so didnt take the time to dig in. Game sold last week and they wanted the monitor repaired before we shipped it. I ordered the cap kit and sat down to do it today. Sure enough, it is never that easy. I was able to replace all of them and touched up problem joints. But the game is still starting, game screen is now rolling and then the neck glow slowly fades out until there is no pic. Also, side note, there was one cap that I could not identify at C810. It is a UF10 63V. The only thing close that I found is 10 UF 50V in the kit. The other thing that is throwing me off is this cap is installed backwards so the half black on the circle on the board is the positive side of this cap, opposite of all other caps. I hate monitors and any help or direction would be appreciated.

 

[Mattspad]

I have a 25 inch 7400 in a midway game. The screen always looked dim but we were planning on selling the game so didnt take the time to dig in. Game sold last week and they wanted the monitor repaired before we shipped it. I ordered the cap kit and sat down to do it today. Sure enough, it is never that easy. I was able to replace all of them and touched up problem joints. But the game is still starting, game screen is now rolling and then the neck glow slowly fades out until there is no pic. Also, side note, there was one cap that I could not identify at C810. It is a UF10 63V. The only thing close that I found is 10 UF 50V in the kit. The other thing that is throwing me off is this cap is installed backwards so the half black on the circle on the board is the positive side of this cap, opposite of all other caps. I hate monitors and any help or direction would be appreciated.

You boofed up the cap kit it sounds like to me or you bridged something on the reflow. If you can adjust out the roll maybe you didn't then but I'm assuming you already attempted to adjust the holds. Your original problem of a dim screen could've been that the monitor was adjusted incorrectly, tube is weak, or the flyback is weak.

 

[Fian34]

You boofed up the cap kit it sounds like to me or you bridged something on the reflow. If you can adjust out the roll maybe you didn't then but I'm assuming you already attempted to adjust the holds. Your original problem of a dim screen could've been that the monitor was adjusted incorrectly, tube is weak, or the flyback is weak.

I start to adjust it out and then the screen dims out and no neck glow. That is what it was doing before the cap kit. I think I can clean the pic up, but not when the screen goes out like it is.

 

[Mattspad]

I start to adjust it out and then the screen dims out and no neck glow. That is what it was doing before the cap kit. I think I can clean the pic up, but not when the screen goes out like it is.

I think that points to a potential bad tube, voltage regulator, or fly back. Check your b+