Star Wars Trilogy
Sega, 1997You're currently viewing posts by Pinsider viperrwk.
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Cut pin 3 on U218 on the CPU board and U210 on the driver board per Stern SB 112 - http://www.sternpinball.com/upload/downloads/sb112.pdf.
Swap places with the 68B09s on the CPU board.
Could also be a bad C30 on the 5v line. Unless you have an ESR meter to check it you could just swap it and see if that helps.
viperrwk
The CPU chips should be identically marked so it should be straightforward to swap them. I was referring to C30 on the CPU board which is the big radial bypass cap on the 5v line - 1000uf 16v:
http://web.archive.org/web/20120801023626/http://www.sternpinball.com/downloads/CPU_Sound_Bd.pdf
viperrwk
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