HarmanKardon-AVR142_230-avr-sm维修电路原理图.pdf
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1、 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 BASIC SPECIFICATIONS 3 TROUBLESHOOTING GUIDE 4 PROCESSOR RESET 4 PACKAGE LISTS AND PARTS 5DISASSEMBLY 8 EXPLODED VIEW AND PARTS 9 ELECTRICAL PARTS LIST 10 IC LIST 30 SEMICONDUCTO
2、R PINOUTS 31 PCB DRAWINGS 69 BLOCK DIAGRAM 74 WIRING DIAGRAM 75 AMP BIAS ADJUSTMENT 76 SCHEMATIC DIAGRAMS 77-83 Released EU2009 Harman Consumer Group, Inc. Rev 0, 04/2009 8500 Balboa Boulevard Northridge, California 91329 RadioFans.CN 收音机爱 好者资料库Eachprecautioninthismanualshouldbefollowedduringservici
3、ng.Components identified with the IEC symbolin the parts list are special significance to safety. When replacing a component identified 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 manu
4、al. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptablyinsulated from the supply circuit before retuming the product to the customer.Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are c
5、alledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors andsemiconductor chip components.The following techniques should be used to help reduce the incidence of component damage caused by static electricity.1. Immediatel
6、y before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge onyour 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 reason
7、s 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, toprevent electrostatic charge build-up or exposure of the assembly.3. Use only a grounded-tip soldering iron to solde
8、r 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 chargessufficient to damage ES devices.5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES de
9、vices.6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacementES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)7. Immediately befor
10、e removing the protective material from the leads of a replacement ES device, touch the protective material to thechassis or circuit 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 mot
11、ions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing togetheror your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.CAUTION :harman/kardonAVR 139-141-142/230 Service
12、ManualPage 2 of 83RadioFans.CN 收音机爱 好者资料库223ENGLISHTechnical Specifications for AVR Surround ReceiverTECHNICAl sPECIfICATIoNs foR AVRAudio Sectionstereo Mode Continuous Average Power (fTC) 40 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohmsfive-Channel surround Modes Power P
13、er Individual Channel, all channels driven simultaneously front l&R channels: 35 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohms Center channel: 35 Watts, 0.07% THD, 20Hz20kHz into 8 ohms surround channels: 35 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsfive-Channel surround Modes (one ch
14、annel driven into 6 ohms, 1kHz, 0.07% THD) front l&R channels: 70 Watts per channel Center channel: 70 Watts surround (l & R) channels: 70 Watts per channelInput sensitivity/Impedance linear (High level) 200mV/47kohmssignal-to-Noise Ratio (IHf-A) 95dbsurround system Adjacent Channel separation Analo
15、g Decoding 40db (Pro logic, etc.) Dolby Digital (AC-3) 55db DTs 55dbfrequency Response 1W (+0db, 3db) 10Hz100kHzHigh Instantaneous Current Capability (HCC) 25 AmpsTransient Intermodulation Distortion (TIM) UnmeasurableRise Time 16secslew Rate 40V/secFM Tuner Section frequency Range 87.5108MHz Usable
16、 sensitivity IHf 1.3 V/13.2dbf signal-to-Noise Ratio Mono/stereo: 70/65db (DIN) Distortion Mono/stereo: 0.15/0.3% stereo separation 35db 1kHz selectivity 400kHz: 70db Image Rejection 80db If Rejection 90dbAM Tuner Section frequency Range 5221620kHz signal-to-Noise Ratio 45db Usable sensitivity loop:
17、 500V Distortion 1kHz, 50% Mod: 0.8% selectivity 10kHz: 30dbVideo Section Video format PAl/NTsC Input level/Impedance 1Vp-p/75 ohms output level/Impedance 1Vp-p/75 ohms Video frequency Response 10Hz8MHz (3db)General Power Requirement AC 230V/50Hz Power Consumption 72W idle, 580W maximum (2 channels
18、driven) Dimensions (Max) Width 440mm Height 165mm Depth 382mm Weight 9.6 kgDepth 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 and logic 7 are trademarks o
19、f Harman International Industries, Incorporated, registered in the United states and/or other countries. Designed to Entertain is a trademark of Harman International Industries, Incorporated.*Manufactured under license from Dolby laboratories. “Dolby”, “Pro logic”, AC-3 and the Double-D symbol are t
20、rademarks of Dolby laboratories, Inc.Manufactured under license under U.s. Patent #s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,487,535; 7,003,467 & other U.s. and worldwide patents issued & pending. DTs, DTs Digital surround, Es, and Neo:6 are registered trademarks and the DTs logos symbol are
21、trademarks of DTs, Inc. 1996-2007 DTs, Inc. All Rights Reserved.logic 7 is a registered trademark of lexicon, Inc.HDMI is a trademark or registered trademark of HDMI licensing llC.sACD is a trademark of sony Corporation.0130CSK - HK AVR142 OM PRESS release02.indd 2324/04/09 15:34:53harman/kardonAVR
22、139-141-142/230 Service ManualPage 3 of 83ENGLISHTROUBLESHOOTING GUIDE 25Troubleshooting GuideProcessor ResetIn the rare case where the units operation or thedisplays seem abnormal, the cause may involvethe erratic operation of the systems memory ormicroprocessor.To correct this problem, first unplu
23、g the unitfrom the AC wall outlet and wait at least three minutes. After the pause, reconnect the ACpower cord and check the units operation. If thesystem still malfunctions, a system reset mayclear the problem.To clear the AVRs entire system memory including tuner presets, output level settings,del
24、ay times and speaker configuration data, firstput the unit in Standby by pressing the SystemPower Control button 1. Next, press andhold the Surround Mode Button 6for 5 sec-onds.The unit will turn on automatically.Note thatonce you have cleared the memory in this man-ner, it is necessary to re- estab
25、lish all system configuration settings and tuner presets.NOTE: Resetting the processor will erase anyconfiguration settings you have made for speakers, output levels, surround modes, digitalinput assignments as well as the tuner presets.After a reset the unit will be returned to the factory presets,
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