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19 minutes ago, sandyk said:

However, people like yourself simply refuse to accept that the Power Supply of Digital devices is every bit as important as with Analogue designs, perhaps even more so ?

For the record, I spent the morning investigating what turned out to be a power supply issue in a digital device.

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8 minutes ago, sandyk said:

I for one, would be very interested to read about anything that you have found in this area that may also be employed in other designs/equipment, or even the cause of the problem that you had in the PSU area.

Did this problem disable the equipment., or substantially degrade it's performance ?

This morning's problem wasn't related to audio at all. It's an embedded computing device, and long story short, the DRAM power supply was off spec, causing all kinds of mayhem.

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8 minutes ago, sandyk said:

 OOPS !

 Were you the only one to experience this problem ?

It's a new design. Some units were mysteriously having issues. The current theory is that some component is operating at the very edge of its envelope, and random variations mean it sometimes works and sometimes doesn't. It is no longer my problem.

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