HarmanKardon-AVR8000-avr-sm维修电路原理图.pdf
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1、 harman/kardon AVR8000 AVR8000 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 FRONT PANEL CONTROLS.5 FRONT PANEL DISPLAY.7 REAR PANEL CONNECTIONS.8 REMOTE CONTROL FUNCTIONS.10 TROUBLESHOOTING GUIDE.14 PROCESSOR RESET.14 BULLETIN HK2002-04.15
2、 BULLETIN HK2004-01.17 TECH TIP HKTT2002-02.19 TECH TIP HKTT2003-01.22 DC OFFSET ADJUSTMENT23 EXPLODED VIEW.24 EXPLODED VIEW PARTS LIST.27 DISASSEMBLY TIPS.29 REPLACING IC701.36 ELECTRICAL PARTS LIST.37 BLOCK DIAGRAM120 PCB DRAWINGS.121 SEMICONDUCTOR PINOUTS.156 SCHEMATICS.208 WIRING DIAGRAM.241 PAC
3、KING.242 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev10 7/2005 RadioFans.CN 收音机爱 好者资料库Eachprecautioninthismanualshouldbefollowedduringservicing.Components identified with the IEC symbolin the parts list are special significance to safety. When replacing a component identif
4、ied with, use only the replacement parts designated, or parts with the same ratings or resistance, wattage, or voltage that are designated in theparts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptablyinsulated from the supply
5、circuit before retuming the product to the customer.Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transist
6、ors andsemiconductor 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 onyour body by
7、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 assemb
8、ly on a conductive surface such as aluminum foil, toprevent 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
9、 can generate electrical chargessufficient 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. (Mo
10、st replacementES 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 thechassis or circuit
11、 assembly into which the device will be installed.Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing togetheror your clothes fabric
12、 or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.CAUTION :AVR8000 AVR8000 harman/kardon 2RadioFans.CN 收音机爱 好者资料库1. Inspect all lead dress to make certain thatleads are not pinched or that hardware is notlodged between the chassis a
13、nd other metalpartsintheunit.2. Be sure that any protective devices such asnonmetallic control knobs, insulating fish-papers,cabinetbacks,adjustmentandcompartment covers or shields, isolationresistor-capacitynetworks,mechanicalinsulators, etc. Which were removed for theservicingareproperlyre-install
14、ed.Before returning the unit to the user, perform the following safety checks :3. Be sure that no shock hazard exists ; check for leakagecurrentusingSimpsonModel229LeakageTester,standardequipment item No. 21641, RCA Model WT540A or usealternate method asfollows : Plug the power cord directlyInto a 1
15、20 volt AC receptacle (do not use an IsolationTransformer for this test). Using two clip leads, connect a1500ohms,10wattResistorparalleledbya0.15uFcapacitor,inserieswithallexposedmetalcabinetpartsandaknownearthground,suchas a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or highe
16、r sensitivity to measure the AC voltage drop across theresistor. (See diagram) Move the resistor connection to each exposed metal part having a return path to the chassis (antenna, metal,cabinet,screwheads,knobsandcontrolshafts,escutcheon,etc.)andmeasuretheACvoltagedropacrosstheresistor.(Thistestsho
17、uldbeperformedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningtheunittotheowner. AVR8000 AVR8000 harman/kardonharman/kardon34 TECHNICAL SPECIFICATIONSTechnical SpecificationsAudio SectionStereo Mode Continuous Average Power (FTC)125 Watts per ch
18、annel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohmsFive-Channel Surround Modes Power Per Individual ChannelFront L&R channels:110 Watts per channel 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:110 Watts 0.07% THD, 20Hz20kHz into 8 ohmsSurround channels:110 Watts per channel 0.07% THD, 20
19、Hz20kHz into 8 ohmsInput Sensitivity/ImpedanceLinear (High-Level)200mV/47k ohmsSignal-to-Noise Ratio (IHF-A)95dBSurround System Adjacent Channel SeparationAnalog Decoding 40dB(Pro Logic II, etc.)Dolby Digital (AC-3)55dBDTS55dBFrequency Response 1W (+0dB, 3dB)10Hz 100kHzHigh Instantaneous Current Cap
20、ability (HCC)85 AmpsTransient Intermodulation Distortion (TIM)UnmeasurableSlew Rate40V/secFM Tuner SectionFrequency Range87.5108.0MHzUsable SensitivityIHF 1.3 V/13.2dBfSignal-to-Noise RatioMono/Stereo 70/68dBDistortionMono/Stereo 0.2/0.3%Stereo Separation40dB 1kHzSelectivity400kHz, 70dBImage Rejecti
21、on80dBIF Rejection90dBAM Tuner SectionFrequency Range5201710kHzSignal-to-Noise Ratio45dBUsable SensitivityLoop 500VDistortion1kHz, 50% Mod 0.8%Selectivity10kHz, 30dBVideo SectionTelevision FormatNTSCInput Level/Impedance1Vp-p/75 ohmsOutput Level/Impedance1Vp-p/75 ohmsVideo Frequency Response (Compos
22、ite and S-Video)10Hz8MHz (3dB)Video Frequency Response (Component) 10Hz30MHz (3dB)GeneralPower RequirementAC 120V/60HzPower Consumption119W idle, 694W maximum (2 channels driven)Trigger Output6VDC 500maDimensions (Max)Width17.3 inches (440mm)Height7.65 inches (194mm)Depth20.5 inches (519mm)Weight53
23、lb (24.1 kg)Depth measurement includes knobs, buttons and terminal connections.Height measurement includes feet and chassis.All features and specifications are subject to change without notice.Harman Kardon is a registered trademark, and Power for the Digital Revolution is a trademark, of Harman Kar
24、don, Inc.THX and THX Ultra are manufactured under license from Lucasfilm Ltd.Lucasfilm,THX and THX Ultra are registered trademarks of Lucasfilm Ltd.Surround EX is a jointly developed technology of THX and Dolby Laboratories, Inc., and is a trademark of Dolby. Used under authorization.is a trademark
25、of Harman International Industries, Inc. (Patent No. 5,386,478).*Manufactured under license from Dolby Laboratories.“Dolby,”“Pro Logic,”“Pro Logic II” and the Double-D symbol aretrademarks of Dolby Laboratories. Confidential UnpublishedWorks. 19921999 Dolby Laboratories, Inc.All rights reserved.DTS,
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