found buffer for a13 was non functional and now the game boots. ran test program and chip 7 came up bad. looked at what pins were doing and found no activity on data in which was also shorted on the chip in the row under it. short is on daughter card. disabled the trace and got failure on c same type of problem on daughter card. thanks to blind dog for all the invaluable technical data he sent me without the schematics it would have been a horror show to track down the faults. notice surface vessel has lines in it. I believe that is my daughter board problem was reading motion used a shifter on daughter board because cpu has insufficient cpu power to move things flawlessly.
ps this board sets traces are coming apart by applying any heat, have to check any work I do 3 times to sure nothing gets fouled up