I has this chassis rebuilt by Buffett about 2 years ago. I recently noticed an issue Sometimes there will be a random flash of a blue horizontal bar, Just a solid bar or a flash of a blue screen. No other video issues.
At first I thought it was an issue with a new Neo Geo board I just installed, so I began to t/s from that. Today it occurred to me to just try another JAMMA board and sure enough, the issue still happens. I managed to capture some videos of the issue here. The first 2 are my MVS, the 3rd is a Pandoras box I have laying around.
Watch the second hit by Earthquake, looks like a bar
https://youtu.be/QhKPf2o5E2Q
Here on a unibios crash screen, looks like a blue wipe
https://www.youtube.com/watch?v=mUjcvQTLs9U
and here on the menu screen of a pandoras box:
https://www.youtube.com/watch?v=Njby64HdsQs
Given I've tried two PCBs it's got to be monitor related. Does anyone have any ideas where to start?
At first I thought it was an issue with a new Neo Geo board I just installed, so I began to t/s from that. Today it occurred to me to just try another JAMMA board and sure enough, the issue still happens. I managed to capture some videos of the issue here. The first 2 are my MVS, the 3rd is a Pandoras box I have laying around.
Watch the second hit by Earthquake, looks like a bar
https://youtu.be/QhKPf2o5E2Q
Here on a unibios crash screen, looks like a blue wipe
https://www.youtube.com/watch?v=mUjcvQTLs9U
and here on the menu screen of a pandoras box:
https://www.youtube.com/watch?v=Njby64HdsQs
Given I've tried two PCBs it's got to be monitor related. Does anyone have any ideas where to start?


