7
1 - 1/4 inch mono jack input
2 - 1/4 inch mono jack output (true bypass)
3 - Tuner on/off (true bypass) + Drop D access
4 - Tuner display - Chromatic + Polymode
5 - Note indicator
6 - Drop Tuning & Capo mode access
7 - Power in (9 VDC)
