Harman Kardon AVR-745 free download

File name AVR-745.pdf

harman/kardon Service manual AVR745EU harman/kardon AVR745 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS ESD WARNING... 2 ELECTRICAL PARTS LIST... 11 LEAKAGE TESTING... 3 SEMICONDUCTOR PINOUTS 36 BASIC SPECIFICATIONS... 4 PCB DRAWINGS... 87 TROUBLESHOOTING GUIDE... 5 SERVICE PROCEDURE... 100 PROCESSOR RESET... 5 BLOCK DIAGRAM... 103 PACKAGING... 6 CIRCUIT DESCRIPTION... 105 PACKING PARTS LIST... 7 WIRING DIAGRAM... 106 UNIT EXPLODED VIEW... 8 SCHEMATIC DIAGRAMS... 107 EXPLODED VIEW PARTS LIST.. 9 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York, 11797 Rev0 - 08/2007 Page 1 of 118 harman/kardon Service manual AVR745EU Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge build-up or exposure