Hi all,
I pulled my Voyager out today for the first time in a year or so to have a jam on.
Everything seemed to be fine but after playing for a while I noticed that I was getting weird volume drops on notes while playing. Notes would become very quiet and then back to normal volume completely randomly.
I think I traced the issue to the Volume ADSR Decar control. Turning the control to zero I didn’t have any of the volume drop issues, as soon as I turned up the control they started again.
I haven’t previously had a problem with the envelopes on my Voyager. I have had the main board replaced as mine was one of the models that had IC issues originally.
Not really sure what’s causing it and kinda bummed as I was looking forward to playing in it again. Any advice appreciated!!
Voyager Volume Decay Control Issue
- RL
- Posts: 770
- Joined: Wed May 19, 2004 4:17 am
- Location: http://www.moogmusic.de/
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Re: Voyager Volume Decay Control Issue
Hi,
if U13 (LM339) on the analog board is still a Texas Instrument chip replace it.
if U13 (LM339) on the analog board is still a Texas Instrument chip replace it.
http://www.moogmusic.de
Re: Voyager Volume Decay Control Issue
Thanks! I’ll open it up and and take a look!
Re: Voyager Volume Decay Control Issue
Had a look and it’s a definitely a Texas Instruments LM339N! Even though I’ve had the analog board replaced under warranty, this chip could be the issue?RL wrote: Fri Feb 25, 2022 6:18 am Hi,
if U13 (LM339) on the analog board is still a Texas Instrument chip replace it.
Thanks!
- RL
- Posts: 770
- Joined: Wed May 19, 2004 4:17 am
- Location: http://www.moogmusic.de/
- Contact:
Re: Voyager Volume Decay Control Issue
last week I had the same issue on a Voyager on my desk and it was that chip.
http://www.moogmusic.de
Re: Voyager Volume Decay Control Issue
Cool! What did you replace it with? Seems like the TI version is out of stock just about everywhere!RL wrote: Sat Feb 26, 2022 4:59 am last week I had the same issue on a Voyager on my desk and it was that chip.
Thanks again!