I picked up a cocktail off ebay and lying in the bottom was a bomb jack PCB- it was filthy but remarkably corrosion & repair free.
I've made a jamma adapter and surprise the pcb works.
However the audio is distorted and there's a really loud buzzing, the amp gets hot too. I've double checked the adapter I made and it meters ok and matches the diagram I found on klov.
It looks like it's a bootleg rather than an original but as all the other stuff is working - video, coins, starts, sticks & jump. I think the adapter is right.
Sound is speaker + & - which I've connected to the speaker pins on the jamma edge connector.
Anyone had a simular issue?
I've made a jamma adapter and surprise the pcb works.
However the audio is distorted and there's a really loud buzzing, the amp gets hot too. I've double checked the adapter I made and it meters ok and matches the diagram I found on klov.
It looks like it's a bootleg rather than an original but as all the other stuff is working - video, coins, starts, sticks & jump. I think the adapter is right.
Sound is speaker + & - which I've connected to the speaker pins on the jamma edge connector.
Anyone had a simular issue?