I've had no shortage of issues with the Asteroids Deluxe monitor, like many others. But so far I have not come across this particular issue before so I am stumped, at least before I get started.
The other day the game started to jitter, with the full imagery on the screen "bouncing" quickly - as though the sizing control was out of whack causing the image to resize small to large quickly, making the bouncing kind of effect. But I also notice that the brightness was kind of doing the same thing, where it will brighten and darken slightly although it won't go completely dark or fully bright. Still, it is noticeable.
In the past I have fixed most issues with this by replacing those round transistors that attack to the side of the chassis that the chassis board connects to. I was going to replace these again but I figured it was wiser to ask about this first to see if I am moving in the right direction. Not long ago (maybe two months) I replaced one of these components on the side that corrected a screen issue where the right side of the screen collapsed to the center.
Thanks in advance
The other day the game started to jitter, with the full imagery on the screen "bouncing" quickly - as though the sizing control was out of whack causing the image to resize small to large quickly, making the bouncing kind of effect. But I also notice that the brightness was kind of doing the same thing, where it will brighten and darken slightly although it won't go completely dark or fully bright. Still, it is noticeable.
In the past I have fixed most issues with this by replacing those round transistors that attack to the side of the chassis that the chassis board connects to. I was going to replace these again but I figured it was wiser to ask about this first to see if I am moving in the right direction. Not long ago (maybe two months) I replaced one of these components on the side that corrected a screen issue where the right side of the screen collapsed to the center.
Thanks in advance

