SSlmixed.com Forum
Tech discussion => 4K,6K,8K Series => Topic started by: Jermbob on March 22, 2013, 04:17:14 PM
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When I record the program outs of the desk, the left side is about 3db louder than the right.
Thoughts?
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Bad coupling capacitor in signal way is my first thought.
-Paavo
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Ribbon Connection(s) on the Lower Bus Card? Just sayin' as I had a similar problem, but mine was limited to one bucket.
http://forum.sslmixed.com/index.php?topic=301.msg1368#msg1368
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Another thing to point out is that it doesn't seem to matter which mix bus I use.
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I might be wrong, but that tells me the problem is either before or after the mix-busses. (it's three of them on a 6K)
Another thing to point out is that it doesn't seem to matter which mix bus I use.
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I might be wrong, but that tells me the problem is either before or after the mix-busses. (it's three of them on a 6K)
Another thing to point out is that it doesn't seem to matter which mix bus I use.
You're probably right. It doesn't seem to be the ribbon connections on the lower bus card. Do you have any other ideas?
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You need to use the Patchbay to find the problem area.
Plug a bantam lead directly into your multitrack returns, put the associated Protools channel into record (calibration mode if needed)
Feed a 1k tone via the oscillator into any channel. Then surf the bay to see where the 3dB difference is or not. The 6k will have inserts for the 3 groups, this then finally all sums to the 651.
You can use a block diagram to map all the points.
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This happened to me and all three mix buses were out by varying degrees. It turned out the cards were not seated properly. Very finicky.
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You could have lost one of the +/- legs of the balanced signal, cleaning and reseating the center section cards fix
a lot of problems when something is flakey in the quad buss (6 buss in your case) also dirty normalled TT's
on the quad insert points. I have also seen this (LorR side -3db) happen after a desk has been off for a while,
then goes away after desk has been on for a bit, in this case it usually is a electrolytic coupling cap
in the comp cards. if one side is all distorted for awhile when the desk is cold
(first turned on after is was off for a hour or so) then often it would be one
of those funky stacked ceramic caps.