Marc_NJ
Member
Anyone familiar with Space Firebird?? I have one that I have been trying to fix for a while now.. I have had the machine for 15 yrs, and have had it working at various points in time, but it is broken again now.
I have a spare set of boards, but they are of "unknown" sources. Don't know if they worked. However, if I swap the video or audio boards, the problem remains the same. If I swap CPU boards, it still does not work but the problem is different.
One CPU board does nothing. Screen is blank.
Other CPU puts the stars on the screen, I can give credit, start a game, and I hear all of the sounds but the the screen just has some odd looking lines for the "bullets". No good guys, no bad guys on the screen.
I did swap the socketed ROM chips from one board to another, no change.
Block diagram shows "Character generator memory" is on the video board (5K and 6K), but swapping video boards has no effect. I am thinking I have a problem with the RAM, or some other logic.
This is not a popular game, so I am sure it is a long shot.. but, what the heck?
Thanks
I have a spare set of boards, but they are of "unknown" sources. Don't know if they worked. However, if I swap the video or audio boards, the problem remains the same. If I swap CPU boards, it still does not work but the problem is different.
One CPU board does nothing. Screen is blank.
Other CPU puts the stars on the screen, I can give credit, start a game, and I hear all of the sounds but the the screen just has some odd looking lines for the "bullets". No good guys, no bad guys on the screen.
I did swap the socketed ROM chips from one board to another, no change.
Block diagram shows "Character generator memory" is on the video board (5K and 6K), but swapping video boards has no effect. I am thinking I have a problem with the RAM, or some other logic.
This is not a popular game, so I am sure it is a long shot.. but, what the heck?
Thanks