HarmanKardon-AVR7200-avr-sm维修电路原理图.pdf

《HarmanKardon-AVR7200-avr-sm维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《HarmanKardon-AVR7200-avr-sm维修电路原理图.pdf（184页珍藏版）》请在收音机爱好者资料库上搜索。

1、 harman/kardon AVR7200 AVR7200 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 FRONT PANEL CONTROLS.5 INFORMATION DISPLAY.7 REAR PANEL CONNECTIONS.8 REMOTE CONTROL FUNCTIONS.11 INSTALLATION/CONNECTIONS.14 TROUBLESHOOTING GUIDE.17 PROCESSOR RE

2、SET.17 UNIT EXPLODED VIEW.18 EXPLODED VIEW PARTS LIST.19 BLOCK DIAGRAM.22 DC OFFSET/IDLE CURRENT ADJ.23 BULLETIN HK2003-04.24 TECH TIP HKTT2003-01.25 ELECTRICAL PARTS LIST.26 PCB DRAWINGS.74 SEMICONDUCTOR PINOUTS.99 SCHEMATICS.158 WIRING DIAGRAM.183 PACKAGING PARTS LIST.184 harman/kardon, Inc. 250 C

3、rossways Park Dr. Woodbury, New York 11797 Rev1 7/2005 www.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoRadioFans.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 re

4、placing 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 manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptabl

5、yinsulated 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 calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and

6、 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. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrost

7、atic 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 reasons prior to applying power to the unit under test.2. After removing an electrical assembly equipped with E

8、S 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 solder or unsolder ES devices.4. Use only an anti-static solder removal device. Some solder removal devices no

9、t 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 devices.6. Do not remove a replacement ES device from its protective package until immediately before you a

10、re 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 before removing the protective material from the leads of a replacement ES device, touch the protective materi

11、al 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 motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing tog

12、etheror your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.CAUTION :AVR7200 AVR7200 harman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoRadioFans.CN 收音机爱 好者资料库1. Inspect all lead dress to ma

13、ke certain thatleads are not pinched or that hardware is notlodged between the chassis and other metalpartsintheunit.2. Be sure that any protective devices such asnonmetallic control knobs, insulating fish-papers,cabinetbacks,adjustmentandcompartment covers or shields, isolationresistor-capacitynetw

14、orks,mechanicalinsulators, etc. Which were removed for theservicingareproperlyre-installed.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,

15、RCA Model WT540A or usealternate method asfollows : Plug the power cord directlyInto a 120 volt AC receptacle (do not use an IsolationTransformer for this test). Using two clip leads, connect a1500ohms,10wattResistorparalleledbya0.15uFcapacitor,inserieswithallexposedmetalcabinetpartsandaknownearthgr

16、ound,suchas a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or higher 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,knobsa

17、ndcontrolshafts,escutcheon,etc.)andmeasuretheACvoltagedropacrosstheresistor.(Thistestshouldbeperformedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningtheunittotheowner.AVR7200 AVR7200 harman/kardon www.freeservicemanuals.infoIts Freewww.freeserv

18、icemanuals.infoTECHNICAL SPECIFICATIONS 4AVR 7200 TECHNICAL SPECIFICATIONSAudio SectionStereo Mode Continuous Average Power (FTC)115 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohmsSeven-Channel Surround Modes Power per Individual ChannelFront L&R channels:100 Watts per chan

19、nel 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:100 Watts 0.07% THD, 20Hz20kHz into 8 ohmsSurround (L & R Side, L & R back) channels:100 Watts per channel 0.07% THD, 20Hz20kHz into 8 ohmsInput Sensitivity/ImpedanceLinear (High-Level)200mV/47k ohmsSignal-to-Noise Ratio (IHF-A)95dBSurround System A

20、djacent Channel SeparationPro Logic I/II 40dBDolby Digital (AC-3)55dBDTS55dBFrequency Response 1W (+0dB, 3dB)10Hz 100kHzHigh Instantaneous Current Capability (HCC)75 AmpsTransient Intermodulation Distortion (TIM)UnmeasurableSlew Rate40V/secFM Tuner SectionFrequency Range87.5108.0MHzUsable Sensitivit

21、yIHF 1.3V/13.2dBfSignal-to-Noise RatioMono/Stereo 70/68dBDistortionMono/Stereo 0.2/0.3%Stereo Separation40dB 1kHzSelectivity400kHz, 70dBImage Rejection80dBIF Rejection90dBAM Tuner SectionFrequency Range5201710kHzSignal-to-Noise Ratio45dBUsable SensitivityLoop 500VDistortion1kHz, 50% Mod 0.8%Selectiv

22、ity10kHz, 30dBVideo SectionTelevision FormatNTSCInput Level/Impedance1Vp-p/75 ohmsOutput Level/Impedance1Vp-p/75 ohmsVideo Frequency Response (Composite and S-Video)10Hz8MHz (3dB)Video Frequency Response (Component Video) 10Hz50MHz (3dB)GeneralPower RequirementAC 120V/60HzPower Consumption112W idle,

23、 1210W maximum (7 channels driven)Dimensions Width17.3 inches (440mm)Height7.6 inches (192mm)Depth20.5 inches (520mm)Weight61 lb (29.9kg)Depth measurement includes knobs, buttons and terminal connections.Height measurement includes feet and chassis.All features and specifications are subject to chan

24、ge without notice.Harman Kardon and Power for the Digital Revolution are registered trademarks of Harman International Industries, Incorporated.is a trademark of Harman International Industries, Incorporated (patent no. 5,386,478).*Manufactured under license from Dolby Laboratories.“Dolby,”“Pro Logi

25、c,”“Pro Logic II” and the Double-D symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works.19921999 Dolby Laboratories, Inc.All rights reserved.DTS, DTS Surround, DTS-ES and DTS Neo:6 are registered trademarks of Digital Theater Systems, Inc.UltraStereo is a trademark of UltraSte

26、reo Corp.VMAx is a registered trademark of Harman International Industries, Incorporated, and is an implementation of Cooper Bauck Transaural Stereo under patent license.Logic 7 is a registered trademark of Harman International Industries, Incorporated.HDCD system manufactured under license from Pac

27、ific 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; 5,864,311; 5,872,531; and in Australia: 669114. Other patents pending.A-BUS and A-BUS Ready are registered trademarks of Leisure Tech Electronic

28、s Pty Ltd Australia.TMAVR 7200 OM 1/27/03 4:47 PM Page 49AVR7200 AVR7200 harman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoFRONT-PANEL CONTROLS1 Main Power Switch: Press this button to applypower to the AVR 7200. When the switch is pressedin, the unit is placed in a Standby

29、 mode, as indicatedby the amber Power Indicator 3 surrounding theSystem Power Control 2. This button MUST bepressed in to operate the unit. To turn the unit off andprevent the use of the remote control, this switchshould be pressed until it pops out from the frontpanel so that the word “OFF” may be

30、read at the topof the switch.NOTE: This switch is normally left in the “ON” position.2 System Power Control: When the Main PowerSwitch 1 is “ON,” press this button to turn on theAVR 7200; press it again to turn the unit off. Note thatthe Power Indicator 3 surrounding the switch willturn green when t

31、he unit is on.3 Power Indicator: This LED will be lit in amberwhen the unit is in the Standby mode to signal that theunit is ready to be turned on.When the unit is in oper-ation, the indicator will turn green.4 Headphone Jack: This jack may be used to listento the AVR 7200s output through a pair of

32、headphones.Be certain that the headphones have a standard 1/4stereo phone plug.The main room speakers will automatically be turned off when the headphone jack is in use.5 Tone Mode: This button allows you to remove thetone controls (Treble, Bass and Balance) from the signalpath.The first press of th

33、e button displays a TONEIN message in the Main Information Display .If you wish to set the tone controls to “flat,” without anytreble or bass alteration, press the orSelectorButtons )# so that TONE OUT appears inthe Lower Display Line B.6 Speaker Selector: Press this button to begin theprocess of co

34、nfiguring the AVR 7200 for the type ofspeakers it is being used with. For complete informa-tion on configuring the speaker settings, see page 21.7 Surround Mode Group Selector: Press this but-ton to select the top-level group of surround modes.Each press of the button will select a major modegroupin

35、g in the following order:Once the button is pressed so that the name of thedesired surround mode group appears in the on-screendisplay and in the Lower Display Line B, press theSurround Mode Selector 8 to cycle through theindividual modes available. For example, press this but-ton to select Dolby mo

36、des, and then press theSurround Mode Selector 8 to choose from the var-ious mode options.1 Main Power Switch2 System Power Control3 Power Indicator4 Headphone Jack5 Tone Mode 6 Speaker Selector7 Surround Mode Group Selector8 Surround Mode Selector9 Tuning Selector)Button! Tuner Band Selector Set But

37、ton#Button$ Preset Station Selector% Input Source Selector Tuner Mode Selector& Optical 3 Digital Input* Input/Output Status Indicator( Coaxial 3 Digital Input/Output Video 4 Input/Output Jacks Bass Control Balance Control Treble Control Channel Adjust Selector Delay Adjust Selector Digital Input Se

38、lector Volume Control Input Indicators Main Information Display Remote Sensor Window Surround Mode Indicators245679!#%&*(25138)$26FRONT-PANEL CONTROLSFRONT-PANEL CONTROLS 5 5 Dolby Modes _ DTS Digital Modes _ VMAx Modes _DSP Modes _ Stereo Modes _ Logic 7 ModesAVR 7200 OM 1/27/03 4:46 PM Page 5AVR72

39、00 AVR7200 harman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.info8 Surround Mode Selector: Press this button to select from among the available surround modeoptions for the major mode group selected.The specific modes will vary based on the number ofspeakers available, the majo

40、r mode group andwhether the input source is digital or analog. Forexample, press the Surround Mode Group Selector7 to select a major mode grouping such as Dolby orLogic 7, and then press this button to see the specificmode choices that are available. For more informationon mode selection, see page 2

41、8.9 Tuning Selector: Press the left side of the buttonto tune lower-frequency stations and the right side ofthe button to tune higher-frequency stations.When astation with a strong signal is reached, the TUNEDIndicator I will be lit in the Main InformationDisplay .) Button: When making system config

42、urationchanges using the front-panel controls, press this but-ton to scroll left through the available choices for theoption being adjusted.! Tuner Band Selector: Pressing this button willautomatically switch the AVR 7200 to the Tuner mode.Pressing it again will switch between the AM and FMfrequency

43、 bands. (See page 32 for more informationon the tuner.) Set Button: When making system configurationchanges using the front-panel controls, press this but-ton to enter a setting into the units memory.#Button: When making system configurationchanges using the front-panel controls, press this but-ton

44、to scroll right through the available choices for theoption being adjusted.$ Preset Station Selector: Press this button toscroll up or down through the list of stations that havebeen entered into the preset memory. (See page 32for more information on tuner programming.)% Input Source Selector: Press

45、 this button tochange the input by scrolling up or down through thelist of input sources. Tuner Mode Selector: Press this button to selectAuto or Manual tuning.When the button is pressed sothat the AUTO Indicator J lights, the tuner will searchfor the next station with an acceptable signal when theT

46、uning Selector 9wis pressed.When thebutton is pressed so that the AUTO Indicator J is notlit, each press of the Tuning Selector 9wwillincrease the frequency.This button may also be used toswitch between Stereo and Mono modes for FM radioreception.When weak reception is encountered, pressthe button u

47、ntil the Stereo Indicator H goes out toswitch to Mono reception. Press and hold again toswitch back to Stereo mode. (See page 32 for moreinformation on using the tuner.)& Optical 3 Digital Input: Connect the optical digitaloutput of an audio or video product to this jack.* Input/Output Status Indica

48、tor: This LED indicatorwill normally light green to show that the front-panelCoaxial 3 Digital Input/Output Jack ( or the front-panel Video 4 Input/Output Jacks are operatingas inputs.When these jacks are configured for use asan output, the indicator will turn red to show that thejack may be used fo

49、r recording. (See page 32 for moreinformation on configuring the front-panel jacks as out-puts, rather than inputs.)( Coaxial 3 Digital Input/Output: Connect thecoaxial digital input or output for a digital audio prod-uct such as a portable audio player or video game tothis jack.The jack is normally

50、 an input, but may beswitched to an output for recording using the menusystem. See page 32 for more information. Video 4 Input/Output Jacks: These audio/videojacks may be used for temporary connection to videogames or portable audio/video products such as cam-corders and portable audio players.These