seawolf sinking

trying to figure out why the game isn't reloading the eprom program. on a2-d2 pin 14 and pin 2 remain high. I traced both pins back to d6. the inputs for d6 come from d7 pin2 which remains constant. d7 is a hex quad type flip flop with clear input. pin 1 is clear and it is high so that means the chip is not clearing and can flip the output which is pin 2. pin 2 remains low no mater what and does not change even after I cut the pin in case something is drawing it down it remains low. pin 3 which is the input is pulsing along with the clock on pin 9 so I think I will replace it as bad
 
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
 

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