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Old 9th January 2012, 12:48 PM   #1711
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Thanks. Seems the previous link does not work with the "/" at the end but all the pictures can be found at http://amattsso.1g.fi/kuvat/Audio/

Last edited by Aleksi M; 9th January 2012 at 12:51 PM.
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Old 18th January 2012, 10:09 AM   #1712
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Hello,

I am trying to add a small transformer to the spdif input of the Buffalo II DAC to galvanically isolate it from the spdif source (Squeezebox Touch) which has not the transformer at the output.

Looked at the schematic of Buffalo I (i don't have the schematic of B II) and we see that at the spdif input there is one R13 75Ohm. This is also probabaly the same in BII.

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Than i looked at the schematic of the MUX module and we see that at the input there is C8 220nF, than the T3 Newava Transformer S22083.

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On the schematic CIN6-CIN9 are 220nF, in the Excel Bill of Material CIN6-CIN9 are 0.1uF.

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Than i looked at the pictures of the new spdif inputs for Buffalo III and we see at the input 0.1uF and Murata DA101C.

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Click the image to open in full size.

Now i am little confused what should i add at the spdif input of BII ?

One mkp cap 0.1uF and Murata DA101C (i have some) like on the inputs 1-3 on the MUX will be OK ?
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Old 18th January 2012, 11:21 AM   #1713
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I just added a Newava and nothing more but I am not sure about this . Is there a series cap at the input ?
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Old 18th January 2012, 09:38 PM   #1714
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A 100nf cap in series with the primary of the transformer will work just fine. Then just use the SPDIF input as per the manual. Nothing else is required.
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Old 18th January 2012, 09:45 PM   #1715
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Quote:
Originally Posted by Russ White View Post
A 100nf cap in series with the primary of the transformer will work just fine. Then just use the SPDIF input as per the manual. Nothing else is required.
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Old 18th January 2012, 11:15 PM   #1716
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IS there 10 uf ceramic in series with the input on the Buffalo II ?
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Old 28th January 2012, 09:20 AM   #1717
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Can the new S/PDIF-4 input board be adapted to Buffalo II? If so, how? If not, will we ever see availability of the old mux board?
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Old 28th January 2012, 01:16 PM   #1718
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Can the new S/PDIF-4 input board be adapted to Buffalo II? If so, how? If not, will we ever see availability of the old mux board?
No, only one input is available on the BII.
The old Mux with the CS8416 will likely not re-appear. Instead, Russ and Brian are working on a new version.
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Old 28th January 2012, 01:20 PM   #1719
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Since I have been delayed in getting the new receiver done, Brian and I have decided to make a small batch of the CS8416 board. We will be ordering them very soon.
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Old 28th January 2012, 02:07 PM   #1720
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IS there 10 uf ceramic in series with the input on the Buffalo II ?
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