I feel really ****ty about tipping you off about this game now, the seller seemed to suggest it was working fine aside from the screen warm up time.
Tested there,and apart from the known screen issues ok
Me n
@replicas had a quick go,well mainly me and it was ok.
Then about 1 or so later had a few gos for 30 mins or so then it went on one.
these things happen-just like pins they can go wrong.Not your fault mate
Only difference here is if a pin I would have a good idea on where to start looking,and feel pretty confident on fixing it myslef.Sadly for me not with a vid game tho
Have the manual,as had a copy with it when I bought it.
Also after trawling the internet have come up with good information like pinouts,and,eventually the cpu and video boardschematics(should at least help someone in the know).
Going to remove the cpu and video boards tomorrow,then split them apart.Will give the board a quick look over,and will remove then reseat any roms,as read of a fault on an afterburner that looks similar to my porblem.A long shot I know,but in that case it was (two)knackered roms.
I don't have ways of testing roms or replacements,but reseating is worth it as they may have moved in transit-it was transported onits ass,not upright.
Will then check power supply going into the boards(rather than just checking at the main power supply)