jkoolpe
Well-known member
Hey folks!
Well, no sooner did I acquire an extra, working Star Wars board then my original board went down
. Literally, the same day I picked up the extra SW board! Grrr!!!
So now, when I play the game, it sometimes works for a short while, and then all of a sudden, the starfield disappears as do the enemies. I can still see my X-wing, I can still fire my lasers, and the sounds and music are all there, but no stars and no bad guys. And the game does not progress beyond the first wave either. Here is a short video:
http://www.youtube.com/watch?v=vdSp2eN2N8g
In the self test, I get the dreaded "matrix errors" and everything else passes OK. The error messages are sporadic in that sometimes they read OK, but then as the test is rerun, the errors show up again, flashing on and off. Here is a picture of the error message when it is steady:
http://i140.photobucket.com/albums/r4/jkoolpe/Star Wars problem/StarWarsMatrixError.jpg
I have tried swapping the matrix RAM chips and also the PROM chips with the working board, but no change. I also swapped the AVG chip with no luck. I have the schematics and a scope and can start looking at the matrix chips as shown in the manual on the main board. Any best ideas of where to start on this board?
BTW, this board has Clay's ESB kit installed if that matters.
Thanks,
Jon
Well, no sooner did I acquire an extra, working Star Wars board then my original board went down
So now, when I play the game, it sometimes works for a short while, and then all of a sudden, the starfield disappears as do the enemies. I can still see my X-wing, I can still fire my lasers, and the sounds and music are all there, but no stars and no bad guys. And the game does not progress beyond the first wave either. Here is a short video:
http://www.youtube.com/watch?v=vdSp2eN2N8g
In the self test, I get the dreaded "matrix errors" and everything else passes OK. The error messages are sporadic in that sometimes they read OK, but then as the test is rerun, the errors show up again, flashing on and off. Here is a picture of the error message when it is steady:
http://i140.photobucket.com/albums/r4/jkoolpe/Star Wars problem/StarWarsMatrixError.jpg
I have tried swapping the matrix RAM chips and also the PROM chips with the working board, but no change. I also swapped the AVG chip with no luck. I have the schematics and a scope and can start looking at the matrix chips as shown in the manual on the main board. Any best ideas of where to start on this board?
BTW, this board has Clay's ESB kit installed if that matters.
Thanks,
Jon