[sdiy] Unable to load ROM card sounds on Roland R8 drum but can hear the demo song...

MTG grant at musictechnologiesgroup.com
Thu Mar 28 03:38:37 CET 2019

Let see. What year was this? Do we know what the audio claim is? I would 
look but I'm too busy looking at large EPROM data sheets. (ie. 16-bit 
samples? Are the samples stereo or mono?  That kind of thing.)

The service manual shows two ROMs dropped between two ASICs that look an 
awful like 27C400's pin-out wise. I've seen worse. :)

Anyone unsoldered and dumped them?  Photos even?


On 3/27/2019 6:59 PM, Adam Inglis wrote:

> p.s. and yes, great drum machine. Try programming extreme “Feel” 
> patterns and then changing them via midi PG messages while a song plays.
> Now could someone just reverse engineer the card sample format so we can 
> load in external samples please?

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