SMSL M400 - Device Interface; Component Identification

Display Interface and Instructions
* Note: Knob
1. Konb: Volume/Menu up or down
2. Button: Press to Menu/Enter
Hold to Return or Power ON/OFF
Optical input RCA output
5 6
Coaxial input
9
7
I
2
S input
Balanced output
8
Knob Remote windowDisplay
Bluetooth antenna
1 2 3
4
USB input AC IN
1110
123
456
1087 9 11