[REPAIRED] Raiga TECMO repair help. Sprites blinking

[Tailsnic Retroworks]

Hi. I need help with a Raiga original board. I have a "blinking" error on sprites section.

There is a similar repair log in here: https://jammarcade.net/raiga-strato-fighter-repair-log/

But not my exact case. I have checked the 2x6264 sprites ram (one was bad) and the 2xLS245 in charge of data bus lines (both good), but the error is the same.

I don't know much about this hardware, so my guess is the dual ram activation, making a framerrate issue.

 

[Tailsnic Retroworks]

Repaired. It was one DRAM of a 4x3 41464 rams section. Making a quick piggybacking has made the trick.