ihavethatpma
Member
So I'm having this problem with my Asteroids machine. There are faint traces lines connected to everything, and there is a spot in the middle of every asteroid, as well as one in the very middle of the screen. After about 30 seconds of being on, the screen gets pretty dim. Here is what it looks like right after being switched on:
What the test screen looks like:
A few months back, I rebuilt the power supply, the A/R board and the monitor with a cap kit with resistors, and it was working fine for about a week until the screen went blank one day.
I have since tried reflowing a lot of the deflection board, although it's pretty difficult trying to resolder this stuff:
It's pretty hard to melt, hard to get off the board, and when I finally do get it off, it's difficult to get the new solder to stay down on the board.
I know that the rest of the machine works, as I hooked up my Battlezone monitor to the Asteroids machine and it played fine. I tried swapping out the deflection boards to see if that was the problem, but it actually made the screen worse? It could be that the Battlezone monitor is a G05 though...
Does this look familiar to anyone? I tried searching for similar problems, but couldn't find anything other than one thread saying to fix cold solders, and the problem was never resolved.
What the test screen looks like:
A few months back, I rebuilt the power supply, the A/R board and the monitor with a cap kit with resistors, and it was working fine for about a week until the screen went blank one day.
I have since tried reflowing a lot of the deflection board, although it's pretty difficult trying to resolder this stuff:
It's pretty hard to melt, hard to get off the board, and when I finally do get it off, it's difficult to get the new solder to stay down on the board.
I know that the rest of the machine works, as I hooked up my Battlezone monitor to the Asteroids machine and it played fine. I tried swapping out the deflection boards to see if that was the problem, but it actually made the screen worse? It could be that the Battlezone monitor is a G05 though...
Does this look familiar to anyone? I tried searching for similar problems, but couldn't find anything other than one thread saying to fix cold solders, and the problem was never resolved.
