[sdiy] Prophet 5 memory problem

[tprivitera at nc.rr.com]

Thanks all for the tips.  Had to put the project aside for a little bit as things have gotten super busy at work.  Hope to dig in and troubleshoot more next weekend. Appreciate the guidance on where to look.

Tim
---- Michael E Caloroso <mec.forumreader at gmail.com> wrote: 
> If the firmware is operating then it isn't the memory.

Battery is only an issue after power down.  If your patches don't save
correctly without powering down, then it isn't the battery.

More likely you have a bad IC in the multiplexing or demultiplexing system.

MC

On 8/13/18, Michael Zacherl <sdiy-mz01 at blauwurf.info> wrote:
>
>> On 12 Aug 2018, at 19:16, tprivitera at nc.rr.com wrote:
>>
>> Maybe the battery?
>
> would be my first choice to check.
> only if battery, power supply voltages (under load!) etc. check out ok I’d
> look for patterns in the problem.
> otherwise further troubleshooting would be moot.
> m.
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