Denon AVR-X4500H Service Manual

Also see for AVR-X4500H: Owner's manual Owner's manual

HDMI Tx [IC431] is faulty.Replace with a new device.HDMI Tx [IC431] is faulty.Replace with a new device.Recheck from check item (3.4.)If it does not work, replace the PCB.Recheck from check item (3.4.)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.When the results of check item (3-16.4.) are "10"(Detection of HPD is OK / Detection of RXSENSE is not OK )When the results of check item (3-16.4.) are "20"(Detection of HPD is not OK / Detection of RXSENSE is OK )Check item(3-16.8.). Checking the RXSENSE :Does the test point near HDMI output terminal [JK431] indicate(3.3V)?JK431HDMI OUT[MONITOR1]D2+D2-D1+D1-D0+D0-CK+CK-Check item(3-16.9.). Checking the HPD :Does the test point (HPD) near HDMI output terminal [JK431] indi-cate "Hi(3-5V)"?JK431HDMI OUT[MONITOR1]HPDCheck the TMDS. (HDMI OUT1) Check the HPD. (HDMI OUT1)NO NOYES YESBefore ServicingThis Unit Electrical Mechanical Repair Information Updating136