Hi guys,
I am wrapping up my repair of a Pinball action (a bonanza of failed Fujitsu ICs and a Yamaha audio CPU that I am planing to document in a log) and the only thing left is a very weird video issue.
The game works 100% except on the high score display screen (in attract mode), there is an area of fading bluish-green color, see photo. The color extends beyond the game's screen boundaries and the text has a slight pinkish hue. In all other screens the colors are spot on.
It does this either on an RGB monitor or via a CGA-VGA adapter to an LCD. Another Pinball Action I have does not do this.
The ICs (I can't remember which ones now) that handle the RGB are tested fine.
Any ideas? I can try a narrow it down using my other Pinbal Action PCB to either the video or CPU board but was wondering if anyone has an idea further than that.
Thanks!
paris
I am wrapping up my repair of a Pinball action (a bonanza of failed Fujitsu ICs and a Yamaha audio CPU that I am planing to document in a log) and the only thing left is a very weird video issue.
The game works 100% except on the high score display screen (in attract mode), there is an area of fading bluish-green color, see photo. The color extends beyond the game's screen boundaries and the text has a slight pinkish hue. In all other screens the colors are spot on.
It does this either on an RGB monitor or via a CGA-VGA adapter to an LCD. Another Pinball Action I have does not do this.
The ICs (I can't remember which ones now) that handle the RGB are tested fine.
Any ideas? I can try a narrow it down using my other Pinbal Action PCB to either the video or CPU board but was wondering if anyone has an idea further than that.
Thanks!
paris
