Atom Feed - Twisted Pear Audio Support - Topic:Problem with S/PDIF Transceiver and OTTO-II switch - 20Twisted Pear Audio Support - Atom Feedurn:twistedpearaudio-com:AtomFeed:TwistedPearAudioSupport:Topic:ProblemwithS/PDIFTransceiverandOTTO-IIswitch-20:1Copyright 2024 Twisted Pear Audio Support2024-03-28T17:56:10Zhttp://www.twistedpearaudio.com/forum/Images/YAFLogo.pngForum Adminhttp://www.twistedpearaudio.comfeedback@twistedpearaudio.comBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-DoneganBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-Donegancolin0113http://www.twistedpearaudio.com/forum/profile/27161-colin0113colin0113http://www.twistedpearaudio.com/forum/profile/27161-colin0113colin0113http://www.twistedpearaudio.com/forum/profile/27161-colin0113Brian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-Donegancolin0113http://www.twistedpearaudio.com/forum/profile/27161-colin0113YetAnotherForum.NETurn:twistedpearaudio-com:ftPosts:st1:meid26100:1Problem with S/PDIF Transceiver and OTTO-II switch<table class="content postContainer_Alt" width="100%"><tr><td>Interesting. My guess is a ground loop?</td></tr></table>2021-03-11T19:35:04-07:002021-03-11T19:35:04-07:00Brian Donegan<table class="content postContainer_Alt" width="100%"><tr><td>Interesting. My guess is a ground loop?</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid26099:1Problem with S/PDIF Transceiver and OTTO-II switch<table class="content postContainer" width="100%"><tr><td>OOK, solved. I disconnected the ground from S/PDIF to OTTO-II. It works but I'd love to know why it works.</td></tr></table>2021-03-11T15:17:02-07:002021-03-11T15:17:02-07:00colin0113<table class="content postContainer" width="100%"><tr><td>OOK, solved. I disconnected the ground from S/PDIF to OTTO-II. It works but I'd love to know why it works.</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid26098:1Problem with S/PDIF Transceiver and OTTO-II switch<table class="content postContainer_Alt" width="100%"><tr><td>Maybe easier to understand connection this way if diagram hard to read:<br /><br />S/PDIF to OTTO-II:<br /><br />BCK --> 1B1<br />SCK --> 2B1<br />LRCK -->3B1<br />DOUT -->4B1<br />GND --> G<br /><br /><br />AMANERO TO OTTO-II<br /><br />BCLK -->1B2<br />MCLK -->2B2<br />FSCLK --> 3B2<br />DATA --> 4B2<br /><br />OTTO-II TO OPUS DAC<br /><br />1A --> BCK<br />2A --> MCK<br />3A --> LRCK<br />4A --> DIN<br />G --> GND<br /><br />Centaur --> OPUS (7.5VDC)<br /><br />Centaur --> LM317 PSU --> OTTO-II (5.25VDC)<br /><br />LCBPS to Mercury I/V (+/-12VDC)<br /><br /><br /></td></tr></table>2021-03-10T14:02:45-07:002021-03-10T14:02:45-07:00colin0113<table class="content postContainer_Alt" width="100%"><tr><td>Maybe easier to understand connection this way if diagram hard to read:<br /><br />S/PDIF to OTTO-II:<br /><br />BCK --> 1B1<br />SCK --> 2B1<br />LRCK -->3B1<br />DOUT -->4B1<br />GND --> G<br /><br /><br />AMANERO TO OTTO-II<br /><br />BCLK -->1B2<br />MCLK -->2B2<br />FSCLK --> 3B2<br />DATA --> 4B2<br /><br />OTTO-II TO OPUS DAC<br /><br />1A --> BCK<br />2A --> MCK<br />3A --> LRCK<br />4A --> DIN<br />G --> GND<br /><br />Centaur --> OPUS (7.5VDC)<br /><br />Centaur --> LM317 PSU --> OTTO-II (5.25VDC)<br /><br />LCBPS to Mercury I/V (+/-12VDC)<br /><br /><br /></td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid26097:1Problem with S/PDIF Transceiver and OTTO-II switch<table class="content postContainer" width="100%"><tr><td>The Amanero and S/PDIF transceiver share a ground only to the extent that both are grounded through the OTTO-II and back through the power supplies. The Amanero is powered by USB. The S/PDIF transceiver powered by a Centaur. The OTTO-II is powered by a DC buck converter (LM317) that's powered by Centaur. Here's a diagram of connections.[attach]2098[/attach]</td></tr></table>2021-03-10T01:32:39-07:002021-03-10T01:32:39-07:00colin0113<table class="content postContainer" width="100%"><tr><td>The Amanero and S/PDIF transceiver share a ground only to the extent that both are grounded through the OTTO-II and back through the power supplies. The Amanero is powered by USB. The S/PDIF transceiver powered by a Centaur. The OTTO-II is powered by a DC buck converter (LM317) that's powered by Centaur. Here's a diagram of connections.[attach]2098[/attach]</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid26096:1Problem with S/PDIF Transceiver and OTTO-II switch<table class="content postContainer_Alt" width="100%"><tr><td>Can you detail your connections? Are the Transceiver and Amanero sharing a ground?<br /></td></tr></table>2021-03-09T20:21:54-07:002021-03-09T20:21:54-07:00Brian Donegan<table class="content postContainer_Alt" width="100%"><tr><td>Can you detail your connections? Are the Transceiver and Amanero sharing a ground?<br /></td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid26095:1Problem with S/PDIF Transceiver and OTTO-II switch<table class="content postContainer" width="100%"><tr><td>I am trying to use the OTTO-II to switch between Amanero and the S/PDIF Transceiver. The OTTO-II will work with Amanero connected to either side but doesn't work with S/PDIF transceiver connected. The S/PDIF Transceiver works if connected directly to the OPUS DAC. I'm at a loss with what to try next. Thanks.</td></tr></table>2021-03-09T19:49:18-07:002021-03-09T19:49:18-07:00colin0113<table class="content postContainer" width="100%"><tr><td>I am trying to use the OTTO-II to switch between Amanero and the S/PDIF Transceiver. The OTTO-II will work with Amanero connected to either side but doesn't work with S/PDIF transceiver connected. The S/PDIF Transceiver works if connected directly to the OPUS DAC. I'm at a loss with what to try next. Thanks.</td></tr></table>