SPECIAL MODESpecial mode setting button (for E400E3 model)b No.1 - 5 , 7 : Press the "Power operation (X)" button to turn on the power while pressing both the buttons A, B and the button C atthe same time.b No.6 , 8 : Turn on the power, then press and hold down the A and B buttons for over 3 seconds.b No.9 : Turn on the power, then press and hold down the A and B buttons for over 10 seconds.No. Mode Button A Button B Button C Contents1 Version display(μcom/DSP Error Display) STATUS DIMMER –Firmware versions such as Main or DSP aredisplayed in the FL Display. Errors are displayedwhen they occur. (Refer to 24 page)2User Initialization mode(Installer Setup settings are notinitialized.)SOURCESELECT 1SOURCESELECT 0 – Backup data initialization is carried out.(Installer Setup settings are not initialized.)3Factory Initialization mode(Installer Setup settings are alsoinitialized.)ZONE2SOURCE DIMMER – Backup data initialization is carried out.(Installer Setup settings are also initialized.)4 PANEL/REMOTE LOCK SelectionmodeZONE2SOURCESOURCESELECT 1 –Selects to reject operations through panel buttonsand the master volume knob on the main unit andoperations via the remote control.5 Service Related Selection mode ZONE2SOURCE DIMMER STATUS Selects the “Diagnostic mode” or “Displaying theprotection history mode”.6 Remote ID Setup mode STATUS DIMMER –When using multiple DENON AV receivers in thesame room, make this setting so that only the desiredAV receiver operates. (Refer to 50 page)7 Protection pass mode SOURCESELECT 0 STATUS ZONE2SOURCETurns the power on with the Protection detectiondisabled.8 DM860A Reboot mode SOURCESELECT 1SOURCESELECT 0 Restarts DM860.9 NETWORK Initialization mode ZONE2SOURCE DIMMER – Initializes NETWORK related settings.STATUSZONE2 SOURCEDIMMERXSOURCE SELECT 0 SOURCE SELECT 122