starfighter2
Member
I am having an issue with No sound with an ArcadeSD card using the Ms Pac man to Jamma adapter from jammaboards.com and looking for some recommendations. The ArcadeSD card works 100% except for this one thing.
1. If I use the ArcadeSD card with a straight jamma harness, I get sound no problem.
2. If I use with Ms. Pac-man to Jamma adapter I Don't. However, if I use my captain america game board, I get sound using the adapter. I looked at the pinouts for both jamma and Ms. Pac-man to see if the appapter had continuey to the correct locations and it does but for some reason no sound with arcadeSD card with the adapter. There is +5, ground ,and +12 but NO -5 to the adapter via the power connector to linerar power supply. But with straight jamma connector there is no -5 as well and the documentation suggest that it is not needed.
I would like to keep the Ms pac man all original incase I want to revert and am looking for other ideas folks may have or things to test. Matbe something that I missed.
Thanks
1. If I use the ArcadeSD card with a straight jamma harness, I get sound no problem.
2. If I use with Ms. Pac-man to Jamma adapter I Don't. However, if I use my captain america game board, I get sound using the adapter. I looked at the pinouts for both jamma and Ms. Pac-man to see if the appapter had continuey to the correct locations and it does but for some reason no sound with arcadeSD card with the adapter. There is +5, ground ,and +12 but NO -5 to the adapter via the power connector to linerar power supply. But with straight jamma connector there is no -5 as well and the documentation suggest that it is not needed.
I would like to keep the Ms pac man all original incase I want to revert and am looking for other ideas folks may have or things to test. Matbe something that I missed.
Thanks