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y1 gamma-1 DAC - Page 15

post #211 of 1535
1/7/09 at 11:29am
Btw, your photos don't show a jumper across the VCC and VBUS pins on J2U. You have to install one for this test...

EDIT: Oops, we were posting at the same time.

Yeah, so it's a solder joint issue after all.
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post #212 of 1535
1/7/09 at 11:35am
Quote:
Originally Posted by amb View Post
Btw, your photos don't show a jumper across the VCC and VBUS pins on J2U. You have to install one for this test...

EDIT: Oops, we were posting at the same time.

Yeah, so it's a solder joint issue after all.
How can it be a solder joint? All i did was measure the pins to ground strips with a multimeter and it worked somehow

Didn't even go near the soldering iron. Maybe the chip was somehow stuck.
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post #213 of 1535
1/7/09 at 11:37am
By exerting pressure on the chip's pin(s) you have made a previously-unconnected joint make contact. This is probably temporary until you reflow the suspect joint to permantly fix it.
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post #214 of 1535
1/7/09 at 11:42am
Quote:
Originally Posted by amb View Post
By exerting pressure on the chip's pin(s) you have made a previously-unconnected joint make contact. This is probably temporary until you reflow the suspect joint to permantly fix it.
Fair enough. I'll do it later, time to enjoy the DAC
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post #215 of 1535
1/7/09 at 3:19pm
Hello, just wondering if anyone knew if there were any places that offered the gamma-1 DAC as a kit - like the kits from Glassjar audio.
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post #216 of 1535
1/7/09 at 5:09pm
Sorry, Jeff (Glassjar Audio) has his hands quite full at the moment so there is no full kit available. Aside from the PCB and parts from me, all the other parts are readily available from Digikey/Mouser/Farnell/RS, etc. See the official γ1 website for details.
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post #217 of 1535
1/7/09 at 6:07pm
Quote:
Originally Posted by amb View Post
Sorry, Jeff (Glassjar Audio) has his hands quite full at the moment so there is no full kit available. Aside from the PCB and parts from me, all the other parts are readily available from Digikey/Mouser/Farnell/RS, etc. See the official γ1 website for details.
If my Mini^3 project is a success, I'll order the parts for the Gamma-1 DAC. I take it the Gamma-1 would be a step-up from my Creative soundcard? I was looking at purchasing the Musical Fidelity V-DAC, however, I presume the Gamma-1 would probably be on-par if not better than it (And I do enjoy the pleasures of DIY).

Thanks AMB.
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post #218 of 1535
1/7/09 at 8:03pm
Im stuck between buying a cambridge dacmagic or building one of these!
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post #219 of 1535
1/7/09 at 11:09pm
Quote:
Originally Posted by Possédé View Post
If my Mini^3 project is a success, I'll order the parts for the Gamma-1 DAC. I take it the Gamma-1 would be a step-up from my Creative soundcard? I was looking at purchasing the Musical Fidelity V-DAC, however, I presume the Gamma-1 would probably be on-par if not better than it (And I do enjoy the pleasures of DIY).

Thanks AMB.
If you go with Digi-Key for the parts you can just use the already done (and great) aussie Group-buy BOM: http://www.head-fi.org/forums/5131615-post1.html

fordgtlover made a great job!
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post #220 of 1535
1/7/09 at 11:17pm
Quote:
Originally Posted by DaMnEd View Post
If you go with Digi-Key for the parts you can just use the already done (and great) aussie Group-buy BOM: http://www.head-fi.org/forums/5131615-post1.html

fordgtlover made a great job!
Yep, that BOM ended up working out great for the full config. Though fordgtlover did end up swapping over to resistors from Farnell to save us a little money.

Also, we ended up buying PCM2706 instead of 2707, due to weirdness with the 2707 stock levels. The 2706 is pin compatible and works perfectly in my build.
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post #221 of 1535
1/9/09 at 3:30am
Just ordered all the parts for a USB+DAC only setup. Hope I don't blow it up since all my previous DIY has been a couple of CMoys
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post #222 of 1535
1/9/09 at 5:52pm
edit: found the problem
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post #223 of 1535
1/9/09 at 9:55pm
Quote:
Originally Posted by koike View Post
edit: found the problem
...... well don't edit it out. Tell us what the problem was, and how you fixed it.

Can be very helpful to others that way!
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post #224 of 1535
1/9/09 at 11:01pm
Quote:
Originally Posted by rhys h View Post
Im stuck between buying a cambridge dacmagic or building one of these!
I've been slacking on my y1 parts order, otherwise I'd be able to offer you a comparative review. Soon!
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post #225 of 1535
1/10/09 at 7:39am
Quote:
Originally Posted by wiatrob View Post
I've been slacking on my y1 parts order, otherwise I'd be able to offer you a comparative review. Soon!
I will wait, patiently
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