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Old 2nd May 2013, 03:18 PM   #1
Mike Aa is offline Mike Aa  Denmark
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Default Searching schematics C-Audio ST400


I've burned my C-Audio ST 400, and got in touch with Crest audio and they friendle sent my a scematic- but not the one for the my amp, so maybe c-audio and crest audio arent the same?

My c-audio is build upon a "olson" coupling with 2sk1058 and 2sj162, what they sent me is a switching amplifier - please check attachment..

I have changed both SK and SJ fet "bridges", but know have 11V at the terminal, so a schemtic will really help..

Kind Regards
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Old 2nd May 2013, 05:48 PM   #2
JMFahey is offline JMFahey  Argentina
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Location: Buenos Aires - Argentina
Crest Audio (USA) and C(ambridge)-Audio (UK) are *NOT* the same by any means.
Not inside, where it counts

Read this post:
C Audio pro amplifiers

maybe it can help.
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Old 2nd May 2013, 06:11 PM   #3
Mike Aa is offline Mike Aa  Denmark
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Nope, that I found out- so far so good...

I have found the schematic now, and if other needs it- you can freely contact me on
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Old 17th July 2015, 02:16 PM   #4
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Location: Nicosia
Hello Mike!!!

I also need a schematic for the C audio ST400 power amplifier. I have send you an email but delivery failed.

If anyone could help, it will be much appreciated !

Thank you.
Best regards.
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Old 23rd July 2015, 02:04 PM   #5
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Location: Nicosia
I just remembered the song "Sorry Seems To Be The Hardest Word" by Elton John but in this case it should be " Schematics Seems To Be The Hardest Things To Find "
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