Nintendo Space Firebird trouble

yoyodyne

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Hi everybody,

I'm new here. I read through the great monitor guide in the monitor
section, and I was able to fix a Bomb Jack and Scramble that I bought
in a local deal a while ago. In the same deal I got a Space Firebird
cocktail also. The power supply was no good, so I bought a 100v
one from a Red Tent to run the monitor and hooked up a computer supply
to run the boards. Then the monitor wouldn't work, but I could hear
it playing, so I found some cracked traces on the chassis and fixed them.

Now the monitor seems to work, but all I get on the screen are a few
lit pixels, randomly drawn across the screen. They are fixed, they do not move.
Nothing moves, even when the game is playing. I do get a 'flash' once in a while
when it sounds like the ship blows up. I don't think the problem is with the
monitor, I hooked up a commodore 1084 to the boards, and I get the exact
same screen with it.

Where should I start looking? I reseated all the socketed chips, and reseated the
cables and connectors also. Voltages look good.

Thanks,
Brian
 
Bump, I guess.

Does anybody have a schematic for this game? Please? Or, does this
game use boards similar to any other nintendo games that I can search
for? I've scanned the net, but can only find the operations manual for
space firebird.

Thanks,
Brian
 
Thanks, it does look the same. Also, that web site had another copy in
a different directory that was easier to read.

Thanks a lot! This really helps.

Now if I can just find the what is keeping the sprites from showing up....

I did figure out that the pixels I see are the star field for the game, so some
of the video circuit is working.

-Brian
 
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