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,

26、 DTS Surround, DTS-ES and DTS Neo:6 are registered trademarks of Digital Theater Systems, Inc.UltraStereo is a trademark of UltraStereo Corp.VMAx is a registered trademark of Harman International Industries, Inc., and is an implementation of Cooper Bauck Transaural Stereo under patent license.Logic

27、7 is a registered trademark of Lexicon, Inc.Crystal is a registered trademark of Cirrus Logic Corp.HDCD system manufactured under license from Pacific Microsonics, Inc.This product is covered by one or more of the following: In the USA: 5,479,168; 5,638,074; 5,640,161; 5,808,574;5,838,274; 5,854,600

28、; 5,864,311; 5,872,531; and in Australia: 669114. Other patents pending.TM AVR8000 AVR8000 harman/kardonharman/kardon5 FRONT PANEL CONTROLS1 Main Power Switch: Press this button to apply power to the AVR 8000.When theswitch is pressed in, the unit is placed in aStandby mode, as indicated by the ambe

29、rPower Indicator 3 surrounding theSystem Power Control 2.This buttonMUST be pressed in to operate the unit.Toturn the unit off and prevent the use of theremote control, this switch should be presseduntil it pops out from the front panel so thatthe word “OFF” may be read at the top of the switch.NOTE

30、: This switch is normally left in the “ON”position.2 System Power Control:When the MainPower Switch 1 is “ON,” press this button toturn on the AVR 8000; press it again to turn theunit off. Note that the Power Indicator 3surrounding the switch will turn green whenthe unit is on.3 Power Indicator: Thi

31、s LED will be lit inamber when the unit is in the Standby mode tosignal that the unit is ready to be turned on.When the unit is in operation, the indicator willturn green.4 Headphone Jack:This jack may be used tolisten to the AVR 8000s output through a pairof headphones. Be certain that the headphon

32、eshave a standard 1/4 stereo phone plug. Notethat the main room speakers will automaticallybe turned off when the headphone jack is in use.5 Dolby Mode Selector: Pressing this selector button cycles the AVR through the various Dolby surround modes.The first press of the button switches the surround

33、mode to the last Dolby surround mode that was in use.The choice of modes available will vary based onthe type of input source (digital or analog) andthe number of speaker channels your system isconfigured for.6 Home THX Mode Selector: Press thisbutton to select Home THX processing.Thechoice of THX m

34、odes will vary according to the type of input source and program material(Dolby Digital, DTS 5.1, DTS 6.1 or analog), andthe number of speakers in your system. In somecases the system will auto-default to the THXSurround EX or THX Cinema mode, while inother cases you will have a choice of modes.7 Lo

35、gic 7 Mode Selector/Button: Thisbutton has two functions: In normal use, pressit to select one of the Logic 7 modes.When anadjustment is being made using using theFront Panel Controls1 Main Power Switch2 System Power Control3 Power Indicator4 Headphone Jack5 Dolby Mode Selector6 Home THX Mode Select

36、or7 Logic 7 Mode Selector/Button8 Tone Mode9 DSP Surround Mode Selector) Tuning Selector! Tuner Band Selector 6Ch/8Ch Direct Button# Preset Station Selector$ Stereo Mode Selector/Button% Input Source Selector FM Mode Selector& Optical Digital 4 Input Jack* Optical Digital 4 Output Jack( Coaxial Digi

37、tal 4 Input Jack Coaxial Digital 4 Output Jack Input/Output Status Indicator Video 5 Input Jacks DTS Neo:6 Mode Selector Digital Select Button DTS Surround Mode Selector Volume Control Input Indicators Main Information Display Remote Sensor Window Surround Mode/Bitstream Indicators247913568)!#$%&* (

38、 AVR8000 AVR8000 harman/kardonharman/kardon6 FRONT PANEL CONTROLSFront Panel ControlsDigital Select Button , this button may bepressed to scroll through the available options.8 Tone Mode: This button controls the tonecontrol settings, enabling adjustment of the bassand treble boost/cut or the remova

39、l of the tonecontrols from the signal path.The first press ofthe button displays a TONE IN message inthe Main Information Display . If youwish to take the tone controls to “flat,” withoutany treble or bass alteration, press the or Selector Buttons 7$ so that TONEOUT appears in the Lower Display Line

40、 B.To change the tone settings, press the buttonuntil either TREBLE or BASS appears inthe Lower Display Line B as desired, andthen press the or Selector Buttons7$ to increase or decrease the setting. Notethat the Tone settings apply only to the frontleft and right speakers, and they are not ineffect

41、 when a THX mode is in use.9 DSP Surround Mode Selector: Press thisbutton to select the following DSP SurroundModes: Hall 1, Hall 2 or Theater. (See page 28for more information about surround modes.) Tuning Selector: Press the left side of thebutton to tune lower-frequency stations and theright side

42、 of the button to tune higher-frequencystations.When a station with a strong signal is reached, the TUNED Indicator I will be litin the Main Information Display .To tune manually, tap the button lightly andnote that the tuner will step up one frequencyincrement per button press.When the button ishel

43、d for a few seconds you will note that theunit will quickly search the frequency band.Release it once the fast tuning starts; the tunerwill automatically scan for the next station withan acceptable signal and then stop.! Tuner Band Selector: Pressing this but-ton will automatically switch the AVR 80

44、00 tothe Tuner mode. Pressing it again will switchbetween the AM and FM frequency bands. (Seepage 33 for more information on the tuner.) 6Ch/8Ch Direct Button: Press this buttonto select the 6-Channel Direct or 8-ChannelDirect inputs as the AVR 8000s source.# Preset Station Selector: Press this butt

45、on to scroll up or down through the list orstations that have been entered into the presetmemory. (See pages 33 and 34 for more infor-mation on tuner programming.)$ Stereo Mode Selector/Button:Pressing this selector button cycles through thestereo modes, and it is also used to turn off allsurround p

46、rocessing and place the unit in a tra-ditional two-channel Stereo mode.The firstpress selects 5-Channel Stereo, the next pressselects 7-Channel Stereo, and the third pressselects “SURROUND OFF,” which is true Stereo.% Input Source Selector: Press this buttonto change the input by scrolling up or dow

47、nthrough the list of input sources. FM Mode Selector: Press this button toselect Auto or Manual tuning.When the buttonis pressed so that the AUTO Indicator Jlights, the tuner will search for the next stationwith an acceptable signal when the TuningSelector )uis pressed.When the but-ton is pressed so

48、 that the AUTO Indicator Jis not lit, each press of the Tuning Selector)uwill increase the frequency. (Seepage 33 for more information on using thetuner.)NOTE:The front panel digital audio, video andanalog audio input and output jacks are nor-mally concealed behind a drop-down door in thelower right

49、 corner of the front panel.To accessthese jacks, open the panel door by gentlypulling down the upper right corner of the dooras indicated by “PULL/OPEN.”& Optical Digital 4 Input Jack: Connect theoptical digital output of an audio or video prod-uct to this jack.* Optical Digital 4 Output Jack: Conne

50、ctthis jack to the optical digital input of a digitalrecorder to send a feed of the digital outputwhen a PCM digital input source is in use by the AVR 8000.( Coaxial Digital 4 Input Jack: Connect theoutput of a digital audio source to this jack. Coaxial Digital 4 Output Jack: Connectthis jack to the