Atom Feed - Twisted Pear Audio Support - Topic:Mercury output levels - 20Twisted Pear Audio Support - Atom Feedurn:twistedpearaudio-com:AtomFeed:TwistedPearAudioSupport:Topic:Mercuryoutputlevels-20:1Copyright 2024 Twisted Pear Audio Support2024-03-28T09:27:21Zhttp://www.twistedpearaudio.com/forum/Images/YAFLogo.pngForum Adminhttp://www.twistedpearaudio.comfeedback@twistedpearaudio.comstewarthttp://www.twistedpearaudio.com/forum/profile/597-stewartstewarthttp://www.twistedpearaudio.com/forum/profile/597-stewartBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-Doneganstewarthttp://www.twistedpearaudio.com/forum/profile/597-stewartstewarthttp://www.twistedpearaudio.com/forum/profile/597-stewartYetAnotherForum.NETurn:twistedpearaudio-com:ftPosts:st1:meid25844:1Mercury output levels<table class="content postContainer_Alt" width="100%"><tr><td>I measure 3.61 and 3.59 volts on each output of the AVCC regulator. I can try swapping out the resistors, but that would entail desoldering them so I may leave for now and see if I can tell a difference with speakers. If the multimeter is correct, the pairs are matched within approx .3% (I ordered 4 resistors and the pairs were matched instead of all 4 so I installed one from each matched pair in the same position in the l/r channel assuming each side would be impacted consistently).</td></tr></table>2020-03-24T18:03:04-07:002020-03-24T18:03:04-07:00stewart<table class="content postContainer_Alt" width="100%"><tr><td>I measure 3.61 and 3.59 volts on each output of the AVCC regulator. I can try swapping out the resistors, but that would entail desoldering them so I may leave for now and see if I can tell a difference with speakers. If the multimeter is correct, the pairs are matched within approx .3% (I ordered 4 resistors and the pairs were matched instead of all 4 so I installed one from each matched pair in the same position in the l/r channel assuming each side would be impacted consistently).</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid25838:1Mercury output levels<table class="content postContainer" width="100%"><tr><td>Try measuring the output voltages of the AVCC regulator.<br /><br />Ideally the resistors should be matched to at least 0.1%. I think you are closer to 1%. That may or may not be the issue. Any chance you could try the supplied resistors?</td></tr></table>2020-03-24T12:54:41-07:002020-03-24T12:54:41-07:00Brian Donegan<table class="content postContainer" width="100%"><tr><td>Try measuring the output voltages of the AVCC regulator.<br /><br />Ideally the resistors should be matched to at least 0.1%. I think you are closer to 1%. That may or may not be the issue. Any chance you could try the supplied resistors?</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid25829:1Mercury output levels<table class="content postContainer_Alt" width="100%"><tr><td>Bump.</td></tr></table>2020-03-20T21:39:50-07:002020-03-20T21:39:50-07:00stewart<table class="content postContainer_Alt" width="100%"><tr><td>Bump.</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid25816:1Mercury output levels<table class="content postContainer" width="100%"><tr><td>I recently started listening to a new mercury with Buff III 9038. Using headphones, it sounds like the left channel might be ever so slightly louder than the other. I used 1% 62r vishay z foil resistors that were matched in pairs. I tested each again with a multimeter and they measure 62.2 for one pair and 62.4 for the second pair, so they seemed within an acceptable tolerance. <br /><br />Placid HD measures 14.87v- out and 15.02v+ out. I used fixed resistors here so they are slightly different. <br /><br />I measure the below mv on each output:<br /><br />Balanced L: 4.6- and 5+<br />SE L: 2.1<br /><br />Balanced R: 4- and 4.4+<br />SE R: 1.9<br /><br />Should these values be closer to the left and right channels? </td></tr></table>2020-03-06T02:48:13-07:002020-03-06T02:48:13-07:00stewart<table class="content postContainer" width="100%"><tr><td>I recently started listening to a new mercury with Buff III 9038. Using headphones, it sounds like the left channel might be ever so slightly louder than the other. I used 1% 62r vishay z foil resistors that were matched in pairs. I tested each again with a multimeter and they measure 62.2 for one pair and 62.4 for the second pair, so they seemed within an acceptable tolerance. <br /><br />Placid HD measures 14.87v- out and 15.02v+ out. I used fixed resistors here so they are slightly different. <br /><br />I measure the below mv on each output:<br /><br />Balanced L: 4.6- and 5+<br />SE L: 2.1<br /><br />Balanced R: 4- and 4.4+<br />SE R: 1.9<br /><br />Should these values be closer to the left and right channels? </td></tr></table>