Sega Turbo Board Repair?

K3V

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Anyone have experience with Sega Turbo boards? I've got two semi-working boardsets. I've mixed and matched the boards to where they're ALMOST 100% but there is a problem when I hit the first turn. Check out the video below. Anyone know which chip(s) control these graphics? Does anyone fix these boards?

http://www.youtube.com/watch?v=dYWgfLUpOxE
 
Anyone have experience with Sega Turbo boards? I've got two semi-working boardsets. I've mixed and matched the boards to where they're ALMOST 100% but there is a problem when I hit the first turn. Check out the video below. Anyone know which chip(s) control these graphics? Does anyone fix these boards?

http://www.youtube.com/watch?v=dYWgfLUpOxE

Did you run test mode on it with the switch in the coin door area??
 
take all the eproms out and re seat them.

These boards are known for losing contact with the eporms. The best thing would be to replace all of the sockets.



Mark..
 
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Pulled, cleaned and re-seated all EPROMs and the CPU today. Found one bent pin, straightened that out too. SUCCESS! I can now get through the turns.

Even put up a new personal best score on it. :cheers:
 
im in the same situation, had numerous sets of boards, when mine does the first corner, I get a white track, and unable to drive, I have reseated roms, and same, walked away from it for months as had other stuff going on, came back to it today, and now the bloody trees, buildings all are messed up ARGGHHHH! anyway can someone tell me please, what voltages the switcher is kicking out at both the switcher outputs and then also if the voltage is the same as plug 'A' what is the voltage there? as if I set the switcher to 5.05v then at connector A its about 4.78, so if I jack up the voltage to be around 5v at plug A then at switcher its high, and should it have 2 continous red leds on the board? after 1/2 day messing with boards, cables, roms, and still no joy, this could be put back for another year before I mess with it again, someone? anyone? please can you help?
 
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