Atom Feed - Twisted Pear Audio Support - Topic:Joshua Tree no sound and no relay clicking - 20Twisted Pear Audio Support - Atom Feedurn:twistedpearaudio-com:AtomFeed:TwistedPearAudioSupport:Topic:JoshuaTreenosoundandnorelayclicking-20:1Copyright 2024 Twisted Pear Audio Support2024-03-29T01:47:47Zhttp://www.twistedpearaudio.com/forum/Images/YAFLogo.pngForum Adminhttp://www.twistedpearaudio.comfeedback@twistedpearaudio.comRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-WhiteRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-WhiteMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-WhiteMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-WhiteRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-WhiteMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-WhiteMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-DoneganMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-DoneganMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-DoneganMarnixMhttp://www.twistedpearaudio.com/forum/profile/26664-MarnixMYetAnotherForum.NETurn:twistedpearaudio-com:ftPosts:st1:meid24394:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>Excellent - thanks for the update. :)</td></tr></table>2016-07-07T18:11:33-07:002016-07-07T18:11:33-07:00Russ White<table class="content postContainer_Alt" width="100%"><tr><td>Excellent - thanks for the update. :)</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24387:1Joshua Tree no sound and no relay clicking<table class="content postContainer" width="100%"><tr><td>Hi Russ,<br /><br />YES! It's working after a long afternoon testing on analyser software. It finaaly went clear that the soldering of the both pull-up resistors had a failure (my failure!). Attached the image of the signal now.[attach]1937[/attach].<br /><br />Thanks also to Brian for all the work done! And wish Brian to get well!<br /><br />Marnix</td></tr></table>2016-06-16T14:24:23-07:002016-06-16T14:24:23-07:00MarnixM<table class="content postContainer" width="100%"><tr><td>Hi Russ,<br /><br />YES! It's working after a long afternoon testing on analyser software. It finaaly went clear that the soldering of the both pull-up resistors had a failure (my failure!). Attached the image of the signal now.[attach]1937[/attach].<br /><br />Thanks also to Brian for all the work done! And wish Brian to get well!<br /><br />Marnix</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24385:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>Hoi Russ,<br /><br />First, I hope Brian gets well soon, always nasty the flu....<br />On you question; can't do it myself but i will ask my brother in low, he's a professional software developer for industrial control units based on Raspbery pi's. Maybe for him your question is a piece of cake. Let you know. Otherwise i'll have to wait (unfortunately) on Brians recovery. <br /><br />Marnix</td></tr></table>2016-06-15T15:44:47-07:002016-06-15T15:44:47-07:00MarnixM<table class="content postContainer_Alt" width="100%"><tr><td>Hoi Russ,<br /><br />First, I hope Brian gets well soon, always nasty the flu....<br />On you question; can't do it myself but i will ask my brother in low, he's a professional software developer for industrial control units based on Raspbery pi's. Maybe for him your question is a piece of cake. Let you know. Otherwise i'll have to wait (unfortunately) on Brians recovery. <br /><br />Marnix</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24384:1Joshua Tree no sound and no relay clicking<table class="content postContainer" width="100%"><tr><td>Brian has been sick with the flu - I am sure he will get with you. If you have a programmer like an AVR Dragon I can get you the firmware hex and you can program it yourself as well.</td></tr></table>2016-06-15T15:22:26-07:002016-06-15T15:22:26-07:00Russ White<table class="content postContainer" width="100%"><tr><td>Brian has been sick with the flu - I am sure he will get with you. If you have a programmer like an AVR Dragon I can get you the firmware hex and you can program it yourself as well.</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24380:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>Hi Brian,<br /><br />Did not receive any reaction after the statement of Russ... I hope you are able to send me a new volumite or at least a new ATtiny85 chip (with firmware for the JTA) asap.<br /><br />Marnix</td></tr></table>2016-06-14T15:02:53-07:002016-06-14T15:02:53-07:00MarnixM<table class="content postContainer_Alt" width="100%"><tr><td>Hi Brian,<br /><br />Did not receive any reaction after the statement of Russ... I hope you are able to send me a new volumite or at least a new ATtiny85 chip (with firmware for the JTA) asap.<br /><br />Marnix</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24378:1Joshua Tree no sound and no relay clicking<table class="content postContainer" width="100%"><tr><td>Hi Brian,<br /><br />Russ wrote:"I am sure Brian will have one out to you soon". Hope you can state this, I got a non working pre-amp now, meaning no music from my streamer.......<br /><br />Marnix</td></tr></table>2016-06-13T14:46:33-07:002016-06-13T14:46:33-07:00MarnixM<table class="content postContainer" width="100%"><tr><td>Hi Brian,<br /><br />Russ wrote:"I am sure Brian will have one out to you soon". Hope you can state this, I got a non working pre-amp now, meaning no music from my streamer.......<br /><br />Marnix</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24375:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>One other thing just to double check is that you have good continuity on all wired nets - including the headers for the ribbon cables between the JT and the Driver board. Sometimes IDC cables don't make great contact and have to be worked with a bit. <br /><br />Cheers!<br />Russ</td></tr></table>2016-06-12T17:08:47-07:002016-06-12T17:08:47-07:00Russ White<table class="content postContainer_Alt" width="100%"><tr><td>One other thing just to double check is that you have good continuity on all wired nets - including the headers for the ribbon cables between the JT and the Driver board. Sometimes IDC cables don't make great contact and have to be worked with a bit. <br /><br />Cheers!<br />Russ</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24374:1Joshua Tree no sound and no relay clicking<table class="content postContainer" width="100%"><tr><td>The relay driver is intended to work at 5V - you did nothing but what is normal for that setup. :)<br /><br />You may need a new firmware chip there may be a wrongly set fuse or something. I am sure Brian will have one out to you soon. </td></tr></table>2016-06-12T17:01:32-07:002016-06-12T17:01:32-07:00Russ White<table class="content postContainer" width="100%"><tr><td>The relay driver is intended to work at 5V - you did nothing but what is normal for that setup. :)<br /><br />You may need a new firmware chip there may be a wrongly set fuse or something. I am sure Brian will have one out to you soon. </td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24373:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>Hi Russ/Brian,<br /><br />Tried your last solution and removed and shortened the regulator on the volumite. No effect, still the volumite is dead in the I2C lines on the scope. Already wondered that this solution would helped. My test on the volumite before showed a dead volumite I2C signal, apart from the fact if the pic was fed with 5V or 3.3V. Russ’ advice concerns the effect of the signal on the MCP23008-E/P IO expander and not on a dead volumite.<br /><br />I have the following solution: I order a complete new volumite with JT attenuator firmware in it. I’ll set it up with a shortened regulator (so the IC2 on the PCB shortened). I’ll pay for it, but when this brings the solution (a complete working attenuator) you reimburse me the cost for the new volumite. Meaning I’ll take the risk.<br /><br />Hope you support my proposal.<br />Marnix<br /></td></tr></table>2016-06-12T15:02:56-07:002016-06-12T15:02:56-07:00MarnixM<table class="content postContainer_Alt" width="100%"><tr><td>Hi Russ/Brian,<br /><br />Tried your last solution and removed and shortened the regulator on the volumite. No effect, still the volumite is dead in the I2C lines on the scope. Already wondered that this solution would helped. My test on the volumite before showed a dead volumite I2C signal, apart from the fact if the pic was fed with 5V or 3.3V. Russ’ advice concerns the effect of the signal on the MCP23008-E/P IO expander and not on a dead volumite.<br /><br />I have the following solution: I order a complete new volumite with JT attenuator firmware in it. I’ll set it up with a shortened regulator (so the IC2 on the PCB shortened). I’ll pay for it, but when this brings the solution (a complete working attenuator) you reimburse me the cost for the new volumite. Meaning I’ll take the risk.<br /><br />Hope you support my proposal.<br />Marnix<br /></td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24372:1Joshua Tree no sound and no relay clicking<table class="content postContainer" width="100%"><tr><td>Hi Russ,<br /><br />Gonna try that and will report on the result!</td></tr></table>2016-06-12T13:42:18-07:002016-06-12T13:42:18-07:00MarnixM<table class="content postContainer" width="100%"><tr><td>Hi Russ,<br /><br />Gonna try that and will report on the result!</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24371:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>I believe you have hit on the problem. The volumite should be used at 5V because the target MCP23008-E/P IO expander is running at 5V. That means the volumite should have the on-board reg removed and bypassed so that it is directly powered by the relay driver board.<br /><br />Cheers!<br />Russ</td></tr></table>2016-06-12T12:26:35-07:002016-06-12T12:26:35-07:00Russ White<table class="content postContainer_Alt" width="100%"><tr><td>I believe you have hit on the problem. The volumite should be used at 5V because the target MCP23008-E/P IO expander is running at 5V. That means the volumite should have the on-board reg removed and bypassed so that it is directly powered by the relay driver board.<br /><br />Cheers!<br />Russ</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24370:1Joshua Tree no sound and no relay clicking<table class="content postContainer" width="100%"><tr><td>Hi Brian,<br />This morning I tested all three boards of the JT with a scope (borrowed one) and the volumite seems to be the problem. There is 5 volts at the VCC, 0 V at ground but no burst signals at the I2C lines (both SCL as SDA) when turning the pot. As if there was no firmware in the PIC. <br /><br />To be informative to you as possible to solve my problem:<br />I installed all components on the volumite as were present in the package you send me; meaning both 3.3K resistors (R1 and R2) and the regulator IC2. The last one I fond remarkable, because the ATtiny85 can work on 5V. It also says on the PCB “See manual”, which isn’t there. I indeed measured 3.3 volt on pin 8 after the regulator.<br /><br />I also checked all 10 pins on JT2: 5 and 6 are 5V, rest is 0V. <br /><br />Hoping to hear from you any suggestions to solve my problem.<br />Marnix<br /></td></tr></table>2016-06-12T09:38:21-07:002016-06-12T09:38:21-07:00MarnixM<table class="content postContainer" width="100%"><tr><td>Hi Brian,<br />This morning I tested all three boards of the JT with a scope (borrowed one) and the volumite seems to be the problem. There is 5 volts at the VCC, 0 V at ground but no burst signals at the I2C lines (both SCL as SDA) when turning the pot. As if there was no firmware in the PIC. <br /><br />To be informative to you as possible to solve my problem:<br />I installed all components on the volumite as were present in the package you send me; meaning both 3.3K resistors (R1 and R2) and the regulator IC2. The last one I fond remarkable, because the ATtiny85 can work on 5V. It also says on the PCB “See manual”, which isn’t there. I indeed measured 3.3 volt on pin 8 after the regulator.<br /><br />I also checked all 10 pins on JT2: 5 and 6 are 5V, rest is 0V. <br /><br />Hoping to hear from you any suggestions to solve my problem.<br />Marnix<br /></td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24369:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>Dear Brian,<br /><br />The resistor pairs have a ground reference over the star grounding, as my "old" ladder attenuator had. <br />Tomorrow I hope to control the I2C lines over a scope. Let you know the outcome.<br /><br />Marnix</td></tr></table>2016-06-11T07:30:42-07:002016-06-11T07:30:42-07:00MarnixM<table class="content postContainer_Alt" width="100%"><tr><td>Dear Brian,<br /><br />The resistor pairs have a ground reference over the star grounding, as my "old" ladder attenuator had. <br />Tomorrow I hope to control the I2C lines over a scope. Let you know the outcome.<br /><br />Marnix</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24367:1Joshua Tree no sound and no relay clicking<table class="content postContainer" width="100%"><tr><td>As long as your ground is connected to the relay board when operating. It needs a ground reference for the resistor pairs to shunt to.<br /></td></tr></table>2016-06-10T21:22:03-07:002016-06-10T21:22:03-07:00Brian Donegan<table class="content postContainer" width="100%"><tr><td>As long as your ground is connected to the relay board when operating. It needs a ground reference for the resistor pairs to shunt to.<br /></td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24366:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>Dear Brian,<br /><br />You noticed it quite good; but thats for the photo. In all my amps I use star grounding, meaning all ground wires go to a central star ground. This is to prevent earth loops. So the input grounds go to the star as does 1 ground line (black wire) on the relay board. Because of the J1 connection all ground lines on the PCB go over that one ground line. Tomorrow i'll send a picture of the star grounding.</td></tr></table>2016-06-10T20:19:21-07:002016-06-10T20:19:21-07:00MarnixM<table class="content postContainer_Alt" width="100%"><tr><td>Dear Brian,<br /><br />You noticed it quite good; but thats for the photo. In all my amps I use star grounding, meaning all ground wires go to a central star ground. This is to prevent earth loops. So the input grounds go to the star as does 1 ground line (black wire) on the relay board. Because of the J1 connection all ground lines on the PCB go over that one ground line. Tomorrow i'll send a picture of the star grounding.</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24365:1Joshua Tree no sound and no relay clicking<table class="content postContainer" width="100%"><tr><td>First thing I notice is no audio ground connected to the relay board. That is required. It would not affect the relays clicking, but it would prevent audio. Still looking...</td></tr></table>2016-06-10T19:20:42-07:002016-06-10T19:20:42-07:00Brian Donegan<table class="content postContainer" width="100%"><tr><td>First thing I notice is no audio ground connected to the relay board. That is required. It would not affect the relays clicking, but it would prevent audio. Still looking...</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24364:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>Send some more for details:<br /><br />[attach]1931[/attach][attach]1932[/attach][attach]1933[/attach][attach]1934[/attach]</td></tr></table>2016-06-10T17:55:59-07:002016-06-10T17:55:59-07:00MarnixM<table class="content postContainer_Alt" width="100%"><tr><td>Send some more for details:<br /><br />[attach]1931[/attach][attach]1932[/attach][attach]1933[/attach][attach]1934[/attach]</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24360:1Joshua Tree no sound and no relay clicking<table class="content postContainer" width="100%"><tr><td>Can you post a picture? This can often help spot problems.</td></tr></table>2016-06-10T15:54:42-07:002016-06-10T15:54:42-07:00Brian Donegan<table class="content postContainer" width="100%"><tr><td>Can you post a picture? This can often help spot problems.</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24359:1Joshua Tree no sound and no relay clicking<table class="content postContainer_Alt" width="100%"><tr><td>Just yesterday assembled my new Joshua Tree attenuator and today build it in my tube preamp with an extra line buffer at the input side. On turning the pot there is no reaction at all, nor any clicking of the relays (should I hear these?) nor any sound on the output side. Checked nearly everything; there is power on the driver, all the VCC lines and the volumite; input signal present coming from the line buffer. Checked every single cable core connection, all dip switches are of, using the J2 connection, installed the zero ohm jumper and the resistors on the volumite. Cannot see if the volumite is sending any I2C signals (no scope). <br />Please advise me. </td></tr></table>2016-06-10T15:43:11-07:002016-06-10T15:43:11-07:00MarnixM<table class="content postContainer_Alt" width="100%"><tr><td>Just yesterday assembled my new Joshua Tree attenuator and today build it in my tube preamp with an extra line buffer at the input side. On turning the pot there is no reaction at all, nor any clicking of the relays (should I hear these?) nor any sound on the output side. Checked nearly everything; there is power on the driver, all the VCC lines and the volumite; input signal present coming from the line buffer. Checked every single cable core connection, all dip switches are of, using the J2 connection, installed the zero ohm jumper and the resistors on the volumite. Cannot see if the volumite is sending any I2C signals (no scope). <br />Please advise me. </td></tr></table>