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22nd March 2012, 08:24 PM
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#1391 | |
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Reality first!
diyAudio Member
Join Date: May 2005
Location: Milan, Italy
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Quote:
 I'm afraid you swapped regs... Possibly also LM117-5 and LM117-3 are burnt, maybe the DAC chip... 
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Dario ClaveFremen "Bailando Salsa en el Sietch" - My_Ref Fremen Edition GB Second Run |
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22nd March 2012, 10:18 PM
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#1393 |
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diyAudio Member
Join Date: Jun 2004
Location: Belgium
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Just for the heck of it, I just ordered me one of these DAC's.
Really curious how it will sound. Regards |
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22nd March 2012, 10:41 PM
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#1394 |
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diyAudio Member
Join Date: Dec 2009
Location: Bay City, Michigan
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ANNOUNCEMENT ! New restaurant in Michigan - Featuring sausage and fried chips. Come one, come all.
Dario and Fan are correct as the readings show. I remember separating out the 9cv from the 12 cvs but never took a close look at the board markings. Details, details, details. So I need to order: 1 LM812CV 1 AK4393 2 LM117-3.3v 1 LM117-5v Anything else that might be suspect ? Hopefully my mistake will help others avoid the same.
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Bob M. "Arrange Whatever Pieces Come Your Way." Last edited by bcmbob; 22nd March 2012 at 10:45 PM. |
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22nd March 2012, 10:54 PM
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#1396 |
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diyAudio Member
Join Date: Feb 2007
Location: Aberdeen Scotland
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There is a slim chance that you could get away with putting new regulators in you get these from radio shack tomorrow.
Do you have the ability to solder a new AK chip onto the board? Try changing the 12V regs first, you might just get lucky. if not get a new board and save yourself the grief. 
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If you give up easily Dont start!! |
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22nd March 2012, 11:07 PM
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#1397 |
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diyAudio Member
Join Date: Dec 2009
Location: Bay City, Michigan
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Hi guys, Glad to know I might be able to get some items from RS. Yes, I have soldered several surface mount chips successfully. I had planned to re-populate the board with Dario's upgrades so this will just be a little more practice.
 I've had good luck with a hot air gun for desoldering.Thanks All.
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Bob M. "Arrange Whatever Pieces Come Your Way." |
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22nd March 2012, 11:17 PM
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#1399 |
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diyAudio Member
Join Date: Jun 2004
Location: Belgium
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Not looking for a true high-end DAC here, just curious if a modded version of this thingie will outperform the DAC of my Logitech Duet of my bedroom system.
 Regards |
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22nd March 2012, 11:19 PM
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#1400 | ||
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Reality first!
diyAudio Member
Join Date: May 2005
Location: Milan, Italy
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Quote:
 Quote:
Also electrolythic caps on rails path can be blown. But first replace the two LM7812/LM7912, maybe the rest is good.
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Dario ClaveFremen "Bailando Salsa en el Sietch" - My_Ref Fremen Edition GB Second Run |
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Changing now.
