Post by alanwalker on Jan 4, 2018 1:24:47 GMT -5
Hi,
Ok, so I have a multi-MK machine in an MKII dedicated cabinet. I have all 4 MK pcb's (+ Open Ice) hooked up to a 6 in 1 switcher. I wanted to have the coin door volume buttons work for all games on the switcher (except MKI of course). So I had Jason_971 on here make me a volume daisy chain cable (Pic 1) to connect the volume control from the jamma harness to MKII, 3, 4 & Open Ice. After adding diodes to the splitter cable, (as there was feedback from the inactive boards causing issues) I can get all the boards to interface with the volume buttons except MK4. Now I noticed looking at the wiring diagram (Pic 2) that MK4 is the only one of the four games that has voltage and ground on the connector that the volume control is on. Is it possible that I have to add voltage and/or ground to the connector in order to get the volume buttons working?
I didn't find the right solution from the internet.
References: forums.arcade-museum.com/showthread.php?t=419178
graphic videos
Ok, so I have a multi-MK machine in an MKII dedicated cabinet. I have all 4 MK pcb's (+ Open Ice) hooked up to a 6 in 1 switcher. I wanted to have the coin door volume buttons work for all games on the switcher (except MKI of course). So I had Jason_971 on here make me a volume daisy chain cable (Pic 1) to connect the volume control from the jamma harness to MKII, 3, 4 & Open Ice. After adding diodes to the splitter cable, (as there was feedback from the inactive boards causing issues) I can get all the boards to interface with the volume buttons except MK4. Now I noticed looking at the wiring diagram (Pic 2) that MK4 is the only one of the four games that has voltage and ground on the connector that the volume control is on. Is it possible that I have to add voltage and/or ground to the connector in order to get the volume buttons working?
I didn't find the right solution from the internet.
References: forums.arcade-museum.com/showthread.php?t=419178
graphic videos