(Topic ID: 186598)

SST: I want to know more


By OHMI_Arcade

2 years ago



Topic Stats

  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 2 years ago by YeOldPinPlayer
  • Topic is favorited by 1 Pinsider

You

Linked Games

#1 2 years ago

My SST keeps asking if I want to know more. Yes.. Yes.. specifically on how the sound operates. I normally only get 1 game in and then I start experiencing sound issues. Sometimes the sound cuts off and continues to play the last tone it was on. Other times I lose music but not sound effects. On a few occasions the volume simply increases by itself. There doesn't appear to be any repeatable trigger... it happens at all different points in the game. No specific switches appear to be the cause.

Any ideas very appreciated.

Thanks!
Tim

#2 2 years ago

http://www.pinwiki.com/wiki/index.php?title=Sega/Stern_White_Star_Repair#CPU_.2F_Sound_Board
Interesting item from the Pinwiki about using a newer revision of the cpu in #starshiptroopers "If the CPU/Sound board II is used in early games, Starship Troopers for instance, some sounds may not render correctly."

http://www.pinwiki.com/wiki/index.php?title=Sega/Stern_White_Star_Repair#Sound_problems

Maybe try probing U6 while the game is working correctly, then comparing that to when it's malfunctioning? See if your logic probe shows the sound CPU is hanging or if the problem is in the BSMT or the DAC?

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