Roadblasters missing sprites

UnkulBuck

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Does anyone know which chip needs to be burned to fix my lack of sprites issue?

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I once repaired a roadblasters pcb that suffered from the same issue. The game was running, you could kind of see the road and it was twisting and turning a bit in demo mode with rough edges but no sprites. In my case it turned out it had nothing to do with the slags chips. The cause was a faulty AM27S29 bipolar prom chip at 6/7A labeled "136048 1172". Amongst other things it controls the chip enable signals for the sprite eprom banks.

Do you maybe happen to have a logic probe? If so you could check the output pins 12, 13 and 14 of said chip.
 
For missing sprites, I'd check the two proms (1171 and 1172) before spelunking into the slags.
 
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