Gibson Guitars 1550-07 GUS Function, MCK Position, Display LEDs, Action, Remarks, DADGAD Tuning

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Function MCK Position Display LEDs Action Remarks

DADGAD Tuning	Pull MCK out and turn	A LED shining blue
440Hz, DADGAD	to A LED

Dropped D Tuning	Pull MCK out and turn	D LED shining blue
440Hz, DADGBE	to D LED

Delta Blues Tuning	Pull MCK out and turn	G LED shining blue
440Hz, DGDGBD	to G LED

Enter by pressing the display once— b, #, and all string LEDs will shine red

See above

See above

While you strum, Powerheads start turning, individual strings will shine green when in tune, all LEDs will flash blue 3 times when tuning is complete. After blue lights flash, push MCK back in.

See above

See above