Denon AVR-X4400H Service Manual

Also see for AVR-X4400H: Manual Owner's manual

SPECIAL MODESpecial mode setting buttonb No. 1 - 4, 6 - 8 : While holding down buttons "A", "B" and "C" simultaneously, press the power button to turn on the power.b No. 5, 9, 10 : While the power is on, hold down buttons "A", "B", and "C" for at least 3 seconds .No. Mode Button A Button B Button C Descriptions1 Version Display(u-COM / DSP Error Display) SETUP OPTION - Displays the version of firmware such as the main firmware or DSP. Errors that have occurred are displayed.(See 1. Version Display Mode)2 PANEL / REMOTE LOCK SelectionMode STATUS INFO -Start this unit in the PANEL/REMOTE LOCK selection mode so that PANEL LOCK and Remote Lock can be switched between Onand Off. (See 2. PANEL / REMOTE LOCK Selection Mode)·PANEL LOCK Mode (with Volume)Disables reception from all keys and encoders on the front panel except the power button (including the volume).·PANEL LOCK Mode (without Volume)Disables reception from all keys and encoders on the front panel except the power button and volume encoder.·PANEL LOCK mode is turned off3 Selecting the Mode for Service-related ZONE3SOURCE STATUS - This is a display for turning on each service-related mode.Service-related modes:No. 3-1 - No. 3-53-1 Check the Video/Audio path Mode ↑ ↑ - This is a special mode for service confirmation used during repair work to simplify the confirmation work for the Audio channel /video channel. (See Service Path Check Mode)3-2 Protection history display mode ↑ ↑ - Displays the protection occurrence history.(See 3-2. Protection History Display Mode)3-3 232C Standby Clear Mode ↑ ↑ - Switches from 232C standby mode to normal standby mode.(See 3-3. 232C Standby Clear Mode)3-4 Operation Info Mode ↑ ↑ - Displays the accumulated operating time of the unit, the number of times the power was switched on, and the number of occur-rences of each protection. (See 3-4. Operation Info Mode)3-5 TUNER STEP Mode(E3 and E2 model only) ↑ ↑ - Enables reception STEP of the ANALOG TUNER to be changed.(See 3-5. TUNER STEP mode (E3 / E2 only))3-6 Remote ID Setup Mode ↑ ↑ -If there are multiple DENON AV receivers in the same area, this mode prevents other AV receivers from being operated concur-rently with this device.(See 3-6. Remote ID Setup Mode)4 Protection Pass Mode ZONE3SOURCE STATUS CURSOR 0 Enables the power to be turned on when protection detection is disabled.(See 4. Protection Pass Mode)5 Network Initialization Mode CURSOR 1 DIMMER - Network module backup data is initialized.(See 5. Network Initialization Mode)6 User Initialization Mode BACK INFO - Initialize the backup data for the MCU and network module. (Settings for the Installer Setup are not initialized.)7 Factory Initialization Mode CURSOR d CURSOR f - Initialize the backup data only for MCU.(Settings for the Installer Setup are initialized) (Network function settings are not initialized.) (See Initializing This Unit)8 Clearing the Operation Info OPTION DIMMER - Clear the accumulated operating time of the unit, the number of times the power was switched on, and the number of occur-rences of each protection. (See 6. Clearing the Operation Info)9 HDMI Diagnostics Mode CURSOR d BACKThis mode is used to identify and solve the cause when there is a connectivity issue with this unit and an HDMI device.For details on the operating methods and diagnosis procedures, see the HDMI Diagnostics and Troubleshooting guide issued onSDI.10 Log Capture feature BACK OPTION - Acquires the Network Module log. The log is deleted when the Network Module is deleted.(See 7. Log Capture feature)NOTE : When the volume indicator displays " ", the unit has entered a special mode for developers. In this case, the RS-232C communication is not available.To release this special mode, press and hold the "STATUS" and "CURSOR f" buttons for 3 seconds or more while the power is ON. When the volume indicator returns to the normal display, the RS-232Ccommunication is available.148Caution inservicing Electrical Mechanical Repair Information Updating