136. FUNCTION LIST1. Input attenuator2. Thermal protection indicator, THERMAL3. Protection indicator, PROTECT4. Clip indicator, CLIP5. Signal present indicator, SIGNAL6. Display7. Navigation key, MENU / CANCEL8. Navigation key, PREVIOUS9. Navigation key, NEXT / TAG10. On / Off key, POWER ON11. Data transfer indicator, DATA12. RS-232 port13. Ethernet port14. Binding post block, FAULT15. Digital input XLR connector, AES-EBU INPUT16. Digital output XLR connector, AES-EBU OUTPUT17. Start-up switch18. Output XLR connector to other amplifiers, STK OUTPUT19. Input XLR connector, INPUT20. Earth terminal, GND21. Mains cable22. Switch to disconnect chassis earth / electrical Ground, GND LINK23. Speakon® connectors to the loudspeakers7. FUNCTION DIAGRAM