Atom Feed - Twisted Pear Audio Support - Topic:Joshua Tree Attenuator Not Working - 20Twisted Pear Audio Support - Atom Feedurn:twistedpearaudio-com:AtomFeed:TwistedPearAudioSupport:Topic:JoshuaTreeAttenuatorNotWorking-20:1Copyright 2024 Twisted Pear Audio Support2024-03-28T22:19:33Zhttp://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-Donegangjgillehttp://www.twistedpearaudio.com/forum/profile/27109-gjgilleBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-Donegangjgillehttp://www.twistedpearaudio.com/forum/profile/27109-gjgilleYetAnotherForum.NETurn:twistedpearaudio-com:ftPosts:st1:meid25843:1Joshua Tree Attenuator Not Working<table class="content postContainer_Alt" width="100%"><tr><td>A few things:<br /><br /><ul><li>Make sure you have J1 installed on the relay board.<br /><br /><li>On the Volumite, you either need the voltage regulator installed, or a jumper between pins 1 and 3, otherwise the power is not reaching the firmware chip. I recommend installing the voltage regulator.<br /><br /><li>Also, I can't tell from the pictures, but you should have the 3.32K pull-up resistors installed on the Volumite.</ul></td></tr></table>2020-03-24T17:54:47-07:002020-03-24T17:54:47-07:00Brian Donegan<table class="content postContainer_Alt" width="100%"><tr><td>A few things:<br /><br /><ul><li>Make sure you have J1 installed on the relay board.<br /><br /><li>On the Volumite, you either need the voltage regulator installed, or a jumper between pins 1 and 3, otherwise the power is not reaching the firmware chip. I recommend installing the voltage regulator.<br /><br /><li>Also, I can't tell from the pictures, but you should have the 3.32K pull-up resistors installed on the Volumite.</ul></td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid25827:1Joshua Tree Attenuator Not Working<table class="content postContainer" width="100%"><tr><td><div class="quote"><span class="quotetitle">Originally Posted by: Brian Donegan <a href="/forum/posts/m25826-Joshua-Tree-Attenuator-Not-Working#post25826"><img src="/forum/Themes/GreyGrey/icon_latest_reply.png" title="Go to Quoted Post" alt="Go to Quoted Post" /></a></span><blockquote>You will not be able to measure anything useful on the SDA and SDL lines with a voltmeter. These are data lines, and you would need a scope.<br /><br /> Can you post a picture of your setup? Mainly the Volumite, Relay Driver and connections to the relay board.</div></div><br /><br />[attach]2070[/attach][attach]2071[/attach]<br /><br />Attached are the pictures. The relay board is in another chassis. I checked continuity between the ribbon cable and seems to be right.<br /><br />Greg<br /><br /></td></tr></table>2020-03-17T18:40:00-07:002020-03-17T18:40:00-07:00gjgille<table class="content postContainer" width="100%"><tr><td><div class="quote"><span class="quotetitle">Originally Posted by: Brian Donegan <a href="/forum/posts/m25826-Joshua-Tree-Attenuator-Not-Working#post25826"><img src="/forum/Themes/GreyGrey/icon_latest_reply.png" title="Go to Quoted Post" alt="Go to Quoted Post" /></a></span><blockquote>You will not be able to measure anything useful on the SDA and SDL lines with a voltmeter. These are data lines, and you would need a scope.<br /><br /> Can you post a picture of your setup? Mainly the Volumite, Relay Driver and connections to the relay board.</div></div><br /><br />[attach]2070[/attach][attach]2071[/attach]<br /><br />Attached are the pictures. The relay board is in another chassis. I checked continuity between the ribbon cable and seems to be right.<br /><br />Greg<br /><br /></td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid25826:1Joshua Tree Attenuator Not Working<table class="content postContainer_Alt" width="100%"><tr><td>You will not be able to measure anything useful on the SDA and SDL lines with a voltmeter. These are data lines, and you would need a scope.<br /><br /> Can you post a picture of your setup? Mainly the Volumite, Relay Driver and connections to the relay board.</td></tr></table>2020-03-17T18:03:29-07:002020-03-17T18:03:29-07:00Brian Donegan<table class="content postContainer_Alt" width="100%"><tr><td>You will not be able to measure anything useful on the SDA and SDL lines with a voltmeter. These are data lines, and you would need a scope.<br /><br /> Can you post a picture of your setup? Mainly the Volumite, Relay Driver and connections to the relay board.</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid25825:1Joshua Tree Attenuator Not Working<table class="content postContainer" width="100%"><tr><td>Assembled a JT attenuator. There is 5v going to the volumite from the relay driver, but doesn't appear to be any change in voltage when measuring DC at SCL or SDA. I have two volumites that I purchased about the same time and both are having the same symptoms. I also tried changing out the relay driver, but still nothing. </td></tr></table>2020-03-17T01:09:31-07:002020-03-17T01:09:31-07:00gjgille<table class="content postContainer" width="100%"><tr><td>Assembled a JT attenuator. There is 5v going to the volumite from the relay driver, but doesn't appear to be any change in voltage when measuring DC at SCL or SDA. I have two volumites that I purchased about the same time and both are having the same symptoms. I also tried changing out the relay driver, but still nothing. </td></tr></table>