Special mode setting button (for AVR-S710W)b No. 1 - 6, 9 : While holding down buttons "A", "B" and "C" simultaneously, press the power button to turn on the power.b No. 7, 8 : While the power is on, hold down buttons "A" and "B" for at least 3 seconds .b No. 10 : While holding down buttons "A" and "B" simultaneously, insert the AC plug into the wall outlet to turn on the power.No. Mode Button A Button B Button C Descriptions1 Version Display(u-COM / DSP Error Display) DIMMER STATUS -Displays the version of firmware such as the main firmware or DSP.Errors that have occurred are displayed.(See page 21)2 Selecting the Mode for Service-relatedTUNERPRESET CH+TUNE - TUNE + This is a display for turning on each service-related mode.Service-related modes: No. 2-1 - No. 2-52-1 Protection history display mode ↑ - - Displays the protection occurrence history.(See page 44)2-2 Check the Video/Audio path Mode ↑ - -This is a special mode for service confirmation used during repairwork to simplify the confirmation work for the Audio channel /video channel.(See page 27)2-3 Remote ID Setup Mode ↑ - -If there are multiple DENON AV receivers in the same area, thismode prevents other AV receivers from being operated concur-rently with this device.(See page 48)2-4 TUNER STEP Mode ↑ - - Enables reception STEP of the ANALOG TUNER to be changed.(See page 47)2-5 Operation Info Mode ↑ - -Displays the accumulated operating time of the unit, the numberof times the power was switched on, and the number of occurrenc-es of each protection.(See page 46)3 User Initialization ModeTUNERPRESET CH-TUNERPRESET CH+- Initializes backup data.(Settings for the Installer Setup are not initialized.)4 Factory Initialization ModeTUNERPRESET CH+TUNE - - Initializes backup data.(The settings for the Installer Setup is also initialized.)5 PANEL / REMOTE LOCK Selection Mode ZONE2SOURCETUNERPRESET CH+-Start this unit in the PANEL/REMOTE LOCK selection mode so thatPANEL LOCK and Remote Lock can be switched between ON andOFF.(See page 25)6 Protection Pass Mode ZONE2SOURCETUNERPRESET CH+TUNE +Enables the power to be turned on when protection detection isdisabled.(See page 49)7 CY920 Reboot ModeTUNERPRESET CH-TUNERPRESET CH+- The CY920 is restarted after CY920 hang up.8 CY920 Initialization ModeTUNERPRESET CH+TUNE - - Enter this mode only after replacing Flash for CX870 / CY920 andrewriting the firmware.9 USB Update Mode ZONE2SOURCE TUNE + - Switches this unit to USB Update mode.10 Forced USB All Device Write Mode TUNE + ZONE2SOURCE -Mode used when this unit cannot be recovered.Forcibly switches this unit to USB update mode.(See page 56)MASTER VOLUMESOURCE SELECTBAND MODE DIMMER STATUSTUNEZONE 2 ON/OFF ZONE 2 SOURCE TUNERPRESET CHCBL/SAT 3 4 ONLINE1 GAME2 DVD/Blu-rayQUICK SELECTSETUP MICAUX - HDMI5V/1APHONES MOVIE MUSIC GAME PURESOUND MODETUNE - DIMMERSTATUSZONE2SOURCE TUNE +X TUNERPRESET CH +TUNERPRESET CH -20