30 GUIDE TO FUNCTIONS AND DISPLAY MODES DURING TUNING OPERATIONS

Function

MCK Position

Display LEDs

Action

Remarks

 

 

 

 

 

Instantly Activated Tuning (440Hz, EADGBE is factory default)

Regular Tuning

440Hz, EADGBE

E major Tuning

440Hz, EBEG#BE

Pull MCK out

All string LEDs

Strum all strings

 

shining red

gently

 

 

 

 

 

 

 

 

 

 

b and # shining red

Enter by pressing

MCK out and turned

the display once—

all the way down to “0”

b, #, and all string

(counter-clockwise)

 

 

LEDs will shine red

 

 

E LED shining blue

See above

Pull MCK out and turn

 

to E LED

 

 

 

 

 

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

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Gibson Guitars 1550-07 GUS manual Function MCK Position Display LEDs Action Remarks