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Now downloading free:Harman Kardon AVR-139 & 141 & 142 Rev 0

Harman Kardon AVR-139 & 141 & 142 Rev 0 free download

Various electronics service manuals

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File name:AVR-139 & 141 & 142 Rev 0.pdf
[preview AVR-139 & 141 & 142 Rev 0]
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Model:AVR-139 & 141 & 142 Rev 0 🔎
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Descr: Harman Kardon AVR AVR-139 & 141 & 142 AVR-139 & 141 & 142 Rev 0.pdf
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File name AVR-139 & 141 & 142 Rev 0.pdf

harman/kardon Service Manual AVR 139/230 AVR 141/230 AVR 142/230 5 x 40W 5.1 CHANNEL A/V RECEIVER CONTENTS ESD WARNING 2 ELECTRICAL PARTS LIST 10 BASIC SPECIFICATIONS 3 IC LIST 30 TROUBLESHOOTING GUIDE 4 SEMICONDUCTOR PINOUTS 31 PROCESSOR RESET 4 PCB DRAWINGS 69 PACKAGE LISTS AND PARTS 5 BLOCK DIAGRAM 74 DISASSEMBLY 8 WIRING DIAGRAM 75 EXPLODED VIEW AND PARTS 9 AMP BIAS ADJUSTMENT 76 SCHEMATIC DIAGRAMS 77-83 Released EU2009 Harman Consumer Group, Inc. Rev 0, 04/2009 8500 Balboa Boulevard Northridge, California 91329 harman/kardon AVR 139-141-142/230 Service Manual 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 of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ES devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices. 6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.) 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed.

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