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I just got around to assembling this V1.2 SPDIF 4:1 board for a single BIII I am building. I get no SPDIF signal through any of the four inputs to the DAC. I am using Arduino, not sure if that makes any difference with the V1.2 board. I am powering the board from the BIII DAC board/ribbon cable at 5v. I even tried it in my dual mono DAC (also w/Arduino controller) where the SPDIF board is powered separately at 4.6v and it didn't work in there either. My solder joints look good, but I can redo them. Any other input? I have a V1.0 SPDIF board that did work with the single BIII through one input. I can't recall which version SPDIF 4 is in my dual mono DAC, but it switches between all four inputs. Thanks. Edited by user Saturday, February 15, 2014 4:31:08 AM(UTC)
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Can you show how you have the inputs wired?
if you are able (very very carefully) check that you are getting 3.3V out of the local regulator.
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It's the vreg. When I installed the chips on the first couple of these boards, I accidentally installed 1.2V regulators, mistaking the "033" marking for the 3.3V version (I have both chips in stock).  I can send you a replacement kit, just the chip, or swap the chip for you. Whichever you prefer.
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Thanks very much for the generous options. Since I have trouble with the real tiny stuff I'd like to return it and have you swap it out. I'll PM for address info.
Thanks Brian! |
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I'm glad I saw this thread today! My SPDIF board did work either and it looks like I have same 1.2V regulator as ScompRacer? 
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