A drastic way would be to hold down PROGRAM, COMPARE, and BLOCK simultaneously while turning on the power.
This should re-initialize the quadraverb 2 which will erase all existing user programs and restore them to their original settings...
That action will reset the unit and the PRESET bank patches but will erase all USER patches leaving them blank. There is no USER bank 2 in a stock Q2. The 3 banks are PRESET, USER 0, and USER 1. I have a dump for the Q2 V 2.01 USER banks if required. Just email me charliehallATntlworld.com Regards, Charlie