Denon AVR-X4400H Service Manual

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

1.4. Error displaySee the table below for descriptions of the displayed errors and countermeasures for these.If multiple errors occur, only one item is displayed.The priority order is w, e, r, t, y, q.Condition States Display TROUBLE SHOOTINGqFirm CheckNG(# : 1/2/3/4)The model name, brand name and region informationwritten in the firmware are compared to the regionsettings in the PCB. This error is displayed if the infor-mation does not match." ▲ " is displayed as the first character if the firmwareis not correct (see the illustrations on the right).FIRM ERROR– Main :**:**– Main FBL :**.**– DSP# :**.**– Audio PLD:**.**– Video PLD:**.**– GUI :********•Check the resistor for setting theregion(R1590 / R1589, DIGITAL PCB).• Write the firmware for the correctregion.wIP SCALER NGAn error occurs in Loop back Test of the DDR memorywhich is performed during the initial setting of i/pScaler(ADV8003).IP SCALER ERR 01 •Check the circuits around the IPSCALER (IC401, DIGITAL PCB) andDDR2 (IC402/IC403).If there appear to be no problems,IC401 or IC402/IC403 is faulty.During the initial setting of i/p Scaler ( ADV8003 ) ,there is not the reply of the Loop back Test result ofthe DDR memory .IP SCALER ERR 02eGUI SerialFlash NGIf the Main CPU version is not supported by the GUISerial Flash (ADV8003)," ▼ " is displayed as the first character of the GUIfirmware version.GUI VER. ERROR• GUI :******** •Check the firmware version.rDIR NGThis error is displayed if there is no response from theDIR. DIR ERROR 01 •Check the DIR (IC202, DIGITAL PCB)and surrounding circuits.tDSP# NG(# : 1/2/3/4)The DSP FLAG0 port does not enter "Hi" status whilebooting a DSP code even after resetting DSP. DSP# ERROR 01•Check the DSP (IC251/IC261/IC271/IC281, DIGITAL PCB) and surroundingcircuits.The DSP FLAG0 port does not enter "Hi" status beforeissuing a DSP command. DSP# ERROR 02Setting WRITE to "Lo" does not set ACK to "Hi" duringDSP data reading. DSP# ERROR 03Setting REQ to "Lo" does not set ACK to "Lo" duringDSP data reading. DSP# ERROR 04Setting WRITE to "Hi" does not set ACK to "Hi" duringDSP data writing. DSP# ERROR 05Setting REQ to "Lo" does not set ACK to "Lo" duringDSP data writing. DSP# ERROR 06yEEPROM NGAn error occurred in a checksum of the EEPROM(*** isa block address number). BACKUP ERROR151Caution inservicing Electrical Mechanical Repair Information Updating