I just received an ADA MP-1 that I bought on Reverb, allegedly in good working condition. Plugged in my Les Paul, hooked the thing up to my JCM2000 effects return, booted it up. The following occurs:
1. It cycles through "C1" through "C200"
2. It says "Err 1, Err 2, Err 3."
3. It says "ADA MP1"...