In home mode:
Press to select USB sound source and USB light is On
In menu mode:
Press to enter USB upgrade function setting
In function setting:
No response when pressing the button
In home mode:
Press the button without response and the OK light is on.
Release the button and the light is off
In menu mode:
Press the button without response and the OK light
is On, then release it and it is Off
In function setting:
In function setting: press the button to switch
the function setting and the OK light is On, then release the button
to turn Off
In home mode:
Press to select coax sound source and coax light is On
In menu mode:
Press to enter the external clock function setting
In function setting:
No response when pressing the button
In home mode:
Press to select the opt sound source and the opt light is On
In menu mode:
Press to enter the external clock function setting
In I2S pin and DSD left and right channel function settings:
Press to switch DSD left and right channels
In other function settings:
No response when pressing the button
In home mode:
Press to select the AES sound source and the AES light is On
In menu mode:
Press to enter single / dual AES function setting
In function setting:
No response when pressing the button
USB button
AES button
OPT button
COAX button
Press the button and the setup light flashes to enter the menu mode
Press the button and the setup light is off to return to the home mode
SETUP button
OK button
Button description