JakeTheJacobjake
Member
- Joined
- Dec 28, 2024
- Messages
- 85
- Reaction score
- 31
So I'm diagnosing my Gyruss cabinet. Both amplifier chips were no good so I swapped them out and re-installed the heatsynchs on top using thermal paste. Unfortunately, the issue persists - it has no sound at all. I'm looking for guidance on where I should check next and how to go about checking whether the next piece is good or bad.
A friend said:
"The game uses two Z80 microprocessors, one 6809 microprocessor, and one 8039 microprocessor. For sound it uses five AY38910 PSGs and a DAC."
Wondering if we're on the right track or not.
A friend said:
"The game uses two Z80 microprocessors, one 6809 microprocessor, and one 8039 microprocessor. For sound it uses five AY38910 PSGs and a DAC."
Wondering if we're on the right track or not.
Last edited:
