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Old 21st August 2012, 03:51 PM   #111
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Great !
Both Cled and C13 are extra parts, BTW unmentioned in the PSU BOM.
As you say "not strictly necessary as they are only for testing purposes"

Last edited by korben69; 21st August 2012 at 03:55 PM.
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Old 21st August 2012, 07:39 PM   #112
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Old 22nd August 2012, 10:39 AM   #113
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Last edited by korben69; 22nd August 2012 at 10:48 AM.
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Old 26th August 2012, 12:34 AM   #114
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All -


I have started a new thread for PSU PCB group buy. A new signup sheet has been added with data copied from old sheet.

Going forward discuss all PSU PCB related matter on the new thread.

Power Supply PCB for ES9023 / WM8804 S/PDIF DAC Group Buy

Cheers!
Subbu
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Old 27th August 2012, 08:13 PM   #115
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Hi All

Some informations :
1 - PSU only orders have been shipped this morning (Sandor & Dufus)
2 - Still waiting for the second supplier delivery (hope it will be tomorrow)

Phil
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Old 27th August 2012, 08:25 PM   #116
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Thank you Korben. I hope the boards will be ready soon.
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Old 27th August 2012, 10:16 PM   #117
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You're welcome Dufus, hope we will have soon a happy ending.

Jean Paul gave some crucial informations about following parts type :
1 - C19, C22, C26, C29 and C8 for SE
2 - C19, C22, C26 and C8 for BAL

Those caps must be tantalum (highly prefered), not ceramic as initially mentionned in the BOM...
To make it short : tantalum will avoid MIC5205 oscillations and improve regs stability and BTW DAC perfs.
Bad side for you : more delay... (ordering/delivery delay/sorting)
Bad side for me : more parts sorting, labelling, etc...
Good new : there are some money left to cover the full order.

You'll have some extra parts 1 x 1uF + 4(SE) or/and 3(BAL) x 4.7uF caps per ordered set.
HINT : Old unused C8 (1uF/25v - 1210) could perfectly fit new C13 position (to be confirmed by Subbu !)

No confusion as the new refs are Tantalum, BTW polarized in the following position :
1 - C19, C22, C26, C29 and C8 for SE
2 - C19, C22, C26 and C8 for BAL
The Build Guide will be revisited in this view


Regards

Phil

Last edited by korben69; 27th August 2012 at 10:31 PM.
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Old 29th August 2012, 09:37 AM   #118
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Tantalum caps ordered for SE & BAL versions as specified in my previous post.
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Old 3rd September 2012, 06:03 PM   #119
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Hi all
I've been delivered this afternoon, MIC5205 have finally landed
I've packed those within each order according to quantities.

I will receive tomorrow morning Tantalum caps, refer to Post #117.
Those parts are polarized, so be carefull while soldering...
Build guide would be updated in this view.

I've done my best in labelling parts, quite small with SMD's.

Hope to begin shipping tomorrow.
Please rvrazvan, confirm your full delivery address in PM.
Regards

Phil
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Old 3rd September 2012, 06:17 PM   #120
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Hi it can not be repeated enough: most (but not all) tantalum caps have the markings for the +. So not like normal electrolytic caps that have the - marked. Confusing for beginners who seem to be attracted to our not so beginner friendly DAC.

Quote:
Originally Posted by korben69 View Post

HINT : Old unused C8 (1uF/25v - 1210) could perfectly fit new C13 position (to be confirmed by Subbu !)
Good hint ! If I were you I would start to think this is a setup !
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Last edited by jean-paul; 3rd September 2012 at 06:26 PM.
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