[analog97]

I have built 3 Piccolos, all stock.  One of the Piccolos built for a friend has a problem.    No left channel at 20db gain setting, but otherwise A-OK.  I am assuming the resistor at the 20 db gain position has a bad solder joint.  So, I went to the schematic, but was unsure of the location.  Could someone tell me the position of the 20 db gain resistor?   Greatly appreciated! 

[analog97]

Never mind.  Thanks anyway.  I did it the old fashioned way and checked all the resistors around the gain switch (S2).  Sure enough, R2RB had a bad solder joint....voila!!