avramce
Kabuki Klasher
- Joined
- Sep 24, 2019
- Posts
- 125
Hi all, I just received a new 4-slot board to try with my cabinet, and I was pretty pleased when I realized that all 4 slots are able to read my games with no graphical issues.
However, after rewiring my cabinet from JAMMA to MVS audio pinouts, I realized that none of the games have audio. So far, I have tested the pots, looked for visible damage in the audio area of the board, and reflowed a few components for good measure, but still have no luck recovering the audio.
In the hardware test menu, I noted that I was able to get both a left right and center tones on both my cab and my headphone ports, so I'm coming to the conclusion that something is wrong with how my board is reading audio from my carts.
I'm still relatively new to MVS troubleshooting, but if a problem like this happens across all four slots, does that imply something would possibly be wrong with my Z80? Upon closer inspection, it appears the someone had worked on the Z80 area of the board (very poorly I might add). I wicked off some of the excess solder on the Z80 pins a reflowed, then checked the traces for continuity, and all looked good, however, still not getting sound.
At this point, would there be any reason to consider replacing the Z80? I have a few other boards I could pull one from if need be. I ordered a Neodiag chip from eBay and will be trying that out when that arrives.
However, after rewiring my cabinet from JAMMA to MVS audio pinouts, I realized that none of the games have audio. So far, I have tested the pots, looked for visible damage in the audio area of the board, and reflowed a few components for good measure, but still have no luck recovering the audio.
In the hardware test menu, I noted that I was able to get both a left right and center tones on both my cab and my headphone ports, so I'm coming to the conclusion that something is wrong with how my board is reading audio from my carts.
I'm still relatively new to MVS troubleshooting, but if a problem like this happens across all four slots, does that imply something would possibly be wrong with my Z80? Upon closer inspection, it appears the someone had worked on the Z80 area of the board (very poorly I might add). I wicked off some of the excess solder on the Z80 pins a reflowed, then checked the traces for continuity, and all looked good, however, still not getting sound.
At this point, would there be any reason to consider replacing the Z80? I have a few other boards I could pull one from if need be. I ordered a Neodiag chip from eBay and will be trying that out when that arrives.