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Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

Salas DCG3 preamp (line & headphone)
Salas DCG3 preamp (line & headphone)
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Old 8th March 2017, 11:46 AM   #1601
MagicBus is offline MagicBus  Greece
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Then it is the DMM? Could Nash measure each phase individually?
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Old 8th March 2017, 11:48 AM   #1602
Salas is online now Salas  Greece
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Salas DCG3 preamp (line & headphone)
He should, with a dummy load across phase outputs, also to scope each phase output individually would be the most illuminating
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Old 8th March 2017, 11:49 AM   #1603
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Later in the evening I' ll check mine too.
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Old 8th March 2017, 03:04 PM   #1604
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Salas DCG3 preamp (line & headphone)
Loaded supplies with resistors, no issues there. So.........................
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Old 8th March 2017, 03:10 PM   #1605
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And what happens if you tie their ground points while dummy loaded?
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Old 8th March 2017, 03:46 PM   #1606
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Salas DCG3 preamp (line & headphone)
Still working..no issues
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Old 8th March 2017, 03:57 PM   #1607
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Salas DCG3 preamp (line & headphone)
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?
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Old 8th March 2017, 03:59 PM   #1608
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Salas DCG3 preamp (line & headphone)
The electrolytic capacitors and all kind of diodes on the audio board are correctly oriented, yes?
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Old 8th March 2017, 04:26 PM   #1609
drpro is offline drpro  United States
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Salas DCG3 preamp (line & headphone)
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
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Old 8th March 2017, 04:32 PM   #1610
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I got the Eagle double channel blueprint but don't pay attention to designations
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