Soundcraft S200 Right Main out

  • Thread starter Thread starter booj
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booj

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It was in storage for several months. It worked when it went in. took it out of the ol' shed and the right main out was out. I've got it apart. Everything looks clean. Connectors are connecting. No cracked solder joints. Power supply is good. Sub outs work. Left out good. Right out is completely dead.
Just a message in a bottle.
 
Ok, more info. I've traced the problem to the sub 3 and sub 4 boards being bad by cable and board swapping. Turns out the Right main is out as well as Sub 3 and 4 outs.
I replaced the three TL072 op amps on Sub board 3 to no avail. Running out of ideas. Any help greatly appreciated!
 
So you're confident it is a problem on the boards themselves? Seems odd that that would be the case that all three would have something go bad on them.

I assume you checked power to those boards and to the opamps? What do those board share? Do they share the power connection? Can you confirm with a voltmeter and tone that audio comes into the boards and then trace to where it gets lost?
 
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