Reddogg
Active member
Hey guys, I've got a weird issue I can't track down, and was wondering if anyone can help.
I'm running a 6-in-1 Jamma setup in a 2 joystick 6 button per stick cabinet (Street Fighter 1 cab actually). I had everything running perfectly, on all 6 boards, until I decided to switch one out for a 19-in-1. But, I'm having issues getting buttons 5 and 6 on the 19-in-1 to work when hooked up to the 6-in-1 (but all work fine if hooked up straight to the cab's harness). My cabinet is fully wired for all buttons, and all are connected to the same common ground. I have even tried to wire buttons 5 and 6 on the 19-in-1 straight to the correct buttons on my control panel, but the same issue persisted.
I basically troubleshooted this for 2 hours or so, and finally determined that the 19-in-1 has an issue with my SF1 pcb (which is plugged into one of the slots on the 6-in-1). More specifically, the SF1 pcb that I have (there are 2 different versions of the board) uses an extra button harness for both the Fierce Punch and the Roundhouse Kick on both players 1 and 2 (a total of 4 buttons). After troubleshooting, I determined that if I remove this extra harness, then buttons 5 and 6 on the 19-in-1 will work properly. But, if it's connected, even though there's no power going to the SF1 board (since it's in a 6-in-1, and that only powers one pcb at a time anyway), then buttons 5 and 6 on the 19-in-1 will NOT function at all.
There are 12 pins on this harness, but I only use 4 for those 4 buttons. I have the manual and schematics, but have yet to locate the correct information on it's pinout (the manual is for the "other version" of the pcb). I did some trial and error when I created my own extra harness, in order to find the right pins for the right buttons.
Could it be that all this is due to my extra SF1 harness not being properly grounded? Again, I don't have the pinout for it. I have experienced strange ground issues with multiple board setups in the past, but nothing this difficult to "bypass" and get working properly.
I tried to find the ground pin(s) for the harness the only way I could think of (by measuring voltages of the board running while trying to use one of the remaining non-button pins as grounds), but was not able to get the same kind of voltage reading as if I use the ground in the cab's wiring harness to test voltages, so I'm not sure if there even is one in that set of pins (for the extra harness).
Has anyone got any ideas on how to track down this elusive ground issue? Anyone experience anything similar before?
Oh, and I did repeat my testing for all of the slots on the 6-in-1 to eliminate the possibility of a bad slot, but all work the same.
Thanks for any help!
I'm running a 6-in-1 Jamma setup in a 2 joystick 6 button per stick cabinet (Street Fighter 1 cab actually). I had everything running perfectly, on all 6 boards, until I decided to switch one out for a 19-in-1. But, I'm having issues getting buttons 5 and 6 on the 19-in-1 to work when hooked up to the 6-in-1 (but all work fine if hooked up straight to the cab's harness). My cabinet is fully wired for all buttons, and all are connected to the same common ground. I have even tried to wire buttons 5 and 6 on the 19-in-1 straight to the correct buttons on my control panel, but the same issue persisted.
I basically troubleshooted this for 2 hours or so, and finally determined that the 19-in-1 has an issue with my SF1 pcb (which is plugged into one of the slots on the 6-in-1). More specifically, the SF1 pcb that I have (there are 2 different versions of the board) uses an extra button harness for both the Fierce Punch and the Roundhouse Kick on both players 1 and 2 (a total of 4 buttons). After troubleshooting, I determined that if I remove this extra harness, then buttons 5 and 6 on the 19-in-1 will work properly. But, if it's connected, even though there's no power going to the SF1 board (since it's in a 6-in-1, and that only powers one pcb at a time anyway), then buttons 5 and 6 on the 19-in-1 will NOT function at all.
There are 12 pins on this harness, but I only use 4 for those 4 buttons. I have the manual and schematics, but have yet to locate the correct information on it's pinout (the manual is for the "other version" of the pcb). I did some trial and error when I created my own extra harness, in order to find the right pins for the right buttons.
Could it be that all this is due to my extra SF1 harness not being properly grounded? Again, I don't have the pinout for it. I have experienced strange ground issues with multiple board setups in the past, but nothing this difficult to "bypass" and get working properly.
I tried to find the ground pin(s) for the harness the only way I could think of (by measuring voltages of the board running while trying to use one of the remaining non-button pins as grounds), but was not able to get the same kind of voltage reading as if I use the ground in the cab's wiring harness to test voltages, so I'm not sure if there even is one in that set of pins (for the extra harness).
Has anyone got any ideas on how to track down this elusive ground issue? Anyone experience anything similar before?
Oh, and I did repeat my testing for all of the slots on the 6-in-1 to eliminate the possibility of a bad slot, but all work the same.
Thanks for any help!