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<DIV>Do you mean there's an actual delay between the time you hit the note and you hear it when you're using the chorus? If that's the case, check the BBD clock frequency. The actual delay of a chorus should be indiscernable as a discrete event, and if that's what's happening, then the clock frequency would have to be running very slowly. When this happens with a BBD, the effect can sound like it's going through a very bad ring modulator, because the clock frequency has gone below the cutoff of the filters that are supposed to block high freq's going into the BBD and coming out of the BBD, and could be in the range where it (or harmonics thereof) are mingling with the signal. It will sound quite bad.</DIV>
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<DIV>Cheers,</DIV>
<DIV>Scott</DIV>
<DIV><BR><BR><BR>-----Original Message----- <BR>From: Chad Coffman <CHADCOFFMAN@COMCAST.NET><BR>Sent: Jul 19, 2005 2:04 AM <BR>To: diy synth <SYNTH-DIY@DROPMIX.XS4ALL.NL><BR>Subject: [sdiy] Problematic Moog Opus 3 <BR><BR></DIV><ZZZHTML><ZZZHEAD><ZZZMETA content="text/html; charset=iso-8859-1" http-equiv="Content-Type"><ZZZMETA name="GENERATOR" content="MSHTML 6.00.2900.2627">
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<DIV><FONT face=Arial size=2>So, I just got this Opus 3, right? The problem, as advertised by the seller...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>"I have had the brass and organ sections working, but other times they sound like something ran through a weird ring modulator. I don't think the string section ever worked. Articulator 2 mode never seemed to work, but I could never figure out what it was supposed to do anyway".</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Since I've had it (a few days), the Brass and Organ sections seem to be right on. No problems. The Strings section also works without any problem. However, two problems do appear...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>First, anything that I put through Chorus (Strings or Organ), there seems to be a one-second delay. It's as if the attack is at full-level.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Second, Articulator Mode 2 doesn't seem to work, as mentioned by the seller.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'm going to open the unit up later in the week to refinish the wood sides and clean the Black Ooze from the switches. I'm pretty sure I can determine the problems with Chorus and Articulator Mode 2, but I'm a bit pessimistic about fixing the problems described by the seller (no strings, brass/organ "ring modulator"), since I cannot verify their existence.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>My question is, does it make sense that the problems described by the seller are different than the problems experienced by me? I've read reports online about Opus' with these same problems, but no solutions. Any tips or solutions would help.</FONT></DIV>
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<DIV><FONT face=Arial size=2>**BONUS QUESTION**</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I may as well replace the capacitors while I have the unit cracked open. This will be a new experience for me. Can I replace the capacitors with new ceramic ones?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>**EXTRA BONUS QUESTION**</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Where is the service manual?!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>As always, many thanks in advance.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Chad </FONT></DIV></ZZZBODY></ZZZHTML></BODY><PRE>
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