Question about GallienKrueger Gallien Krueger 800rb
Starting point is to open the unit and verify first that the +/- 60 volt power supplies and the +/- 85 volt supplies are producing.
Next check the +/- 15 volt regulators.
You will likely find one or more of these supplies are defective.
Cause could be blown parts or cracks in circuitboard or bad wiring.
Posted on Jul 13, 2010
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Posted on Jan 02, 2017
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