Denon AVR-X4400H Service Manual

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

When the results of check item (79) are "01"(Detection of HPD is OK / Detection of RXSENSE is not OK )When the results of check item (79) are "02"(Detection of HPD is not OK / Detection of RXSENSE is OK )Check item(83). Checking the RXSENSE. :Does the test point of RXSENSE close to the HDMI output terminal[JK432] indicate the (3.3 V)?JK432HDMI OUT[MONITOR2]D2+D2-D1+D1-D0+D0-CK+CK-Check item(84). Checking the HPD :Does the voltage of HPD test point close to the HDMI output terminal[JK432] indicate Hi (3-5 V)?JK432HDMI OUT[MONITOR2]HPDCheck the RXSENSE. (OUT2) Check the HPD. (OUT2)HDMI Tx [IC431] is faulty.Replace with a new device.HDMI Tx [IC431] is faulty.Replace with a new device.Recheck from check item (4).If it does not work, replace the PCB.Recheck from check item (4).If it does not work, replace the PCB.Check for a short circuit in the TMDS line.If there is no problem, the HDMI Tx [IC431] is faulty.Replace with a new device.Check for a short circuit in the HPD line.If there is no problem, the HDMI Tx [IC431] is faulty.Replace with a new device.NO NOYES YES139Caution inservicing Electrical Mechanical Repair Information Updating