Mailist to discuss all issues regarding the Digitech GSP-2101 Guitar FX Processor

I recently purchased a unit off eBay and there seem to be several 
problems.  For the record, I have replaced the battery, done a hard 
reset and traded out the tubes for known good ones.  All the jacks and 
switches work good.

1. If a patch uses a feedback setting in the reverb module I get a 
continuous faint echo from it that does not go away.  It does not decay.

2.  Every patch has a distortion like buzz to it.  This distortion 
appears in every patch even with the distortion turned off. Even with 
all effects bypassed.  The distortion  sounds like the tailing off of a 
distortion you would select but happens when you hit the first note and 
from there one while playing.

I was wondering where I should start troubleshooting these on the PCB.  
Feel free to email be for more into or detail.