Denon AVR-X4500H Service Manual

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

WARNING:Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommendedby the manufacturer.CAUTION:Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2)a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance fromchassis to either side of the power cord is less than 460 kohms, the set is defective.WARNING:DO NOT return the set to the customer unless the problem is identified and remedied.NOTICE:(1) ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHM(2) ALL CAPACITANCE VALUES ARE EXPRESSED IN MICRO FARAD, UNLESS OTHERWISE INDICATED. PINDICATES MICRO-MICRO FARAD. N INDICATES NANO FARAD.(3) EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION.(4) CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.Electrostatic breakdown of the semi-conductors or optical pickup may occur due to a potential differ-ence caused by electrostatic charge during unpacking or repair work.1. Ground for Human BodyBe sure to wear a grounding band (1 M ohm) that is properly grounded to remove any static electricitythat may be charged on the body.2. Ground for WorkbenchBe sure to place a conductive sheet or copper plate with proper grounding (1 M ohm) on the work-bench or other surface, where the semi-conductors are to be placed. Because the static electricitycharge on clothing will not escape through the body grounding band, be careful to avoid contactingsemi-conductors with your clothingCBAGrounding BandConductive Sheet orCopper Plate1MΩ1MΩCBANOTE FOR SCHEMATIC DIAGRAMHANDLING THE SEMICONDUCTOR AND OPTICSBefore ServicingThis Unit Electrical Mechanical Repair Information Updating4