[LAD] [OT] digital mixer losing its presets after battery replacement

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To: <linux-audio-dev@...>, <linux-audio-user@...>
Date: Wednesday, January 16, 2013 - 11:14 am


The subject says it all. I recently had a tech replace the batteries in
two Yamaha DPM11 mixers. As expected, all presets were lost, but I was
able to restore them by a direct sysex transmission from one unit to the
other (before that one's battery replacement). Alas, the transmitted
data doesn't "keep", i.e. when the machine is turned off the battery
appears to be draining its charge, because the presets are gone when I
power up again. Grrrr.

Also, simplesysexxer seems to receive and transmit a bulk dump with no
problems, but the units do not respond correctly. The first preset gets
copied, then I receive an error code "cE". I could make good use of the
machine's error code definitions now, but the only service manual I
found available on the net is from a private dealer who wants too much
money for it. I'll try contacting a retired Yamaha tech in Toledo OH,
but does anyone on these lists have an idea what I should do ? Btw, the
units work fine now, they just don't keep their presets.

Any & all assistance greatly appreciated !



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[LAD] [OT] digital mixer losing its presets after battery re..., Dave Phillips, (Wed Jan 16, 11:14 am)