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I have got a really nice example of F355 Twin and it works perfect apart from one thing, the Force Feedback to the steering on BOTH machines.
It has had the I/O boards replaced so cant see them being the problem and the game plays great with the volumetrics spot on.
The Driver board (one with the 7 segment displays) has ONLY the power LED on, Nothing is shown on the display itself at any point be it initial power up or when game is running and of couse when the machines boot the scream Driver Board Communication Error !!!.
This is the same on both machines, and I have tried a 3rd supposedly working driver board with the same results.
I have also taken out the Eproms and checked them in a programmer and their contents match the correct .bin from the net so there OK.
Does the driver board show anything, even ER xx codes if ONLY the power is connected...i.e. so I have got some indication of them working and it being something else ?
Any troubleshooting hints, voltage check points etc would be most welcome.
thx in advance.