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DIY I2S to simultaneous converter PCB
DIY I2S to simultaneous converter PCB
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Old 16th October 2018, 02:06 AM   #41
wlowes is offline wlowes  Canada
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Old 16th October 2018, 08:23 AM   #42
Luke is offline Luke  New Zealand
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your link doesnt go to Johns writeup. I am wondering if it can be used for balanced, dont think it can unofrtunately. I may still build your V1 distinction yet
I ended up with a Aya, but I am keen to try a balanced with tube i/v stage.
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Old 16th October 2018, 10:17 AM   #43
ryanj is offline ryanj  Australia
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DIY I2S to simultaneous converter PCB
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Originally Posted by Luke View Post
your link doesnt go to Johns writeup. I am wondering if it can be used for balanced, dont think it can unofrtunately. I may still build your V1 distinction yet
I ended up with a Aya, but I am keen to try a balanced with tube i/v stage.
Hi Luke,

Which write up are you referring to? The link in the first post goes to where John first posted the schematics that I based the PCB on. Is that what your referring to? Seems to work at my end.

You won't be able to use this PCB for balanced without the addition of extra circuitry. I'm really not sure what would be involved as im not very keen on going down that road.
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Old 16th October 2018, 10:21 AM   #44
ryanj is offline ryanj  Australia
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DIY I2S to simultaneous converter PCB
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Originally Posted by sumotan View Post
Now thatís a nice big dac that youíve got there Ryan.
The bread boards take up a lot of room, once I make some PCBs to take their place it will shrink considerably.
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Old 16th October 2018, 10:22 AM   #45
ryanj is offline ryanj  Australia
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DIY I2S to simultaneous converter PCB
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Just a post to subscribe. Parts arrive tomorrow. Keen to hear this sing.
Another nice contribution from Ryanj.
Ill look forward to hearing your opinion.
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Old Yesterday, 08:14 PM   #46
wlowes is offline wlowes  Canada
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Best I can offer is a progress report. Soldering done. Used soldering iron and I think it turned out pretty well. Testing for voltage and continuity all looks good.

But I messed up somewhere in the system. I think likely damaged my acko S03 isolator/reclocker. Somehow after replacing Ian's bd with the new one I seem to have shorted out something on the acko board. Replaced a 3v3 reg and now have restored power to part of the output section, but no music. BBB works and thinks its playing but no sound and then it locks up. I suspect I have fried a section of the S03.


This is not a new thing for me so no doubt will be delayed in listening to the new set up for a while to debug and fix. Time to finally learn how to set up a scope using my sound card.
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Old Yesterday, 11:18 PM   #47
ryanj is offline ryanj  Australia
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Quote:
Originally Posted by wlowes View Post
Best I can offer is a progress report. Soldering done. Used soldering iron and I think it turned out pretty well. Testing for voltage and continuity all looks good.

But I messed up somewhere in the system. I think likely damaged my acko S03 isolator/reclocker. Somehow after replacing Ian's bd with the new one I seem to have shorted out something on the acko board. Replaced a 3v3 reg and now have restored power to part of the output section, but no music. BBB works and thinks its playing but no sound and then it locks up. I suspect I have fried a section of the S03.


This is not a new thing for me so no doubt will be delayed in listening to the new set up for a while to debug and fix. Time to finally learn how to set up a scope using my sound card.
Thanks for the progress report Walter.

Hope the problem is easily resolved.

Have you tried putting Ians PCB back in? Can you bypass the S03 for the time being?
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Old Today, 12:16 AM   #48
wlowes is offline wlowes  Canada
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Hi Ryan
Great suggestion. I was thinking the same. First it is easy to put Ian's device back in. If my suspicion is correct, the symptoms will not change. Then as a second step removing the S03 would confirm if it is the culprit. This is a little trickier as I am not sure what to expect. I believe the BBB can be configured to run without the S03 reclocking. It should at least make poor music running off the 48kHz clock on board, but I have never done it so it is hardly an established control sample. Ian's board expects a masterclock generated by the S03, but I could run your board direct from BBB. If it works then the S03 is confirmed.
The S03 may be easy to fix. There are really only a couple of components in the output section that had the issue. If I understand correctly it divides the 44k clock/2 and buffers the clock signal. The S03 has 4 separate power supplies, and it was clearly this area that was affected. I just hope the issue was contained to this area vs a power issue that bleeds into everything. I suppose it is possible I fried the clocks which would be a pity as they are so small to solder.
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