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-   -   Salas DCG3 preamp (line & headphone) (https://www.diyaudio.com/forums/analog-line-level/296406-salas-dcg3-preamp-line-headphone.html)

MagicBus 8th March 2017 11:46 AM

Then it is the DMM? Could Nash measure each phase individually?

Salas 8th March 2017 11:48 AM

He should, with a dummy load across phase outputs, also to scope each phase output individually would be the most illuminating

MagicBus 8th March 2017 11:49 AM

Later in the evening I' ll check mine too.

drpro 8th March 2017 03:04 PM

Loaded supplies with resistors, no issues there. So.........................

Salas 8th March 2017 03:10 PM

And what happens if you tie their ground points while dummy loaded?

drpro 8th March 2017 03:46 PM

Still working..no issues

Salas 8th March 2017 03:57 PM

Mysterious issue to have checked everything on the main board and in the PSUs alone but having overcurrent problem when combined. Does it work if a mono PSU is shared between audio channels?

Salas 8th March 2017 03:59 PM

The electrolytic capacitors and all kind of diodes on the audio board are correctly oriented, yes?

drpro 8th March 2017 04:26 PM

yes they are. Salas would you perhaps have a copy of the complete audio schematic that shows everything as opposed to just the one channel schematic. Perhaps I am overlooking something and seeing the complete picture might make the difference.

Thanks
David

Salas 8th March 2017 04:32 PM

1 Attachment(s)
I got the Eagle double channel blueprint but don't pay attention to designations


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