Frogger Cocktail sound issue

j1ng

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basehor, Kansas
Just picked up a frogger cocktail. everything works but the audio.

I pulled the pcb and removed the chips and cleaned everything. it has some graphics issues but doing this fixed that. but still no sound, other konami pcbs work fine with audio in the cocktail.

maybe a bad sound chip?
 
Just picked up a frogger cocktail. everything works but the audio.

I pulled the pcb and removed the chips and cleaned everything. it has some graphics issues but doing this fixed that. but still no sound, other konami pcbs work fine with audio in the cocktail.

maybe a bad sound chip?

more likely a voltage issue to the sound amp or the sound amp itself.
 
fixed it, it was a bad z80 on the soundboard. pulled a new on off a board and swapped it out. works like magic.
 
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