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Old 08-10-2016, 09:08 AM
edmcgregor edmcgregor is offline
Junior Member
Join Date: Oct 2014
Posts: 9
Default Yamaha PSS 270

I've just completed a UMR 2 install on this keyboard so thought I'd do a quick post to let others know that it is possible, relatively straightforward, and very similar to the PSS 280 I did a while back.

6/9 linear matrix exactly like the one detailed here for the PSS 470: http://forum.highlyliquid.com/showthread.php?t=1152.

Active low configuration.

+5V from any of the wire jumpers just to the bottom right of main CPU, although the one on the far right gives you closest to 5V exactly.

Ground to keyboard unit ground (black cable which runs from the main PCB to a screw terminal on the metal frame around the keyboard keys)


Last edited by edmcgregor; 08-10-2016 at 09:09 AM. Reason: SPAG error
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