HarmanKardon-AVR347-avr-sm维修电路原理图.pdf

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1、 harman/kardon AVR347 AVR347 7 X 55W 7.1 CHANNEL A/V RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 PACKAGING.5 FRONT PANEL CONTROLS.6 REAR PANEL CONNECTIONS.8 REMOTE CONTROL FUNCTIONS.11 CONNECTIONS.14 OPERATION.33 TROUBLESHOOTING GUIDE.41 PROCESSOR RESET.42

2、 DISASSEMBLY43 UNIT EXPLODED VIEW.48 EXPLODED VIEW PARTS LIST49 AMP BIAS ADJUSTMENT.50 BLOCK DIAGRAM.51 ELECTRICAL PARTS LIST.52 PCB DRAWINGS98 SEMICONDUCTOR PINOUTS.107 SCHEMATICS209 WIRING DIAGRAM.219 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev 0 6/2007 www.freeservicem

3、anuals.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 replacing a component identified with, use only the replacement parts des

4、ignated, 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 circuit before retuming the product to the c

5、ustomer.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 transistors andsemiconductor chip components.The fol

6、lowing 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 touching a known earth ground. Alternatively

7、, 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

8、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 can generate electrical chargessufficient t

9、o 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 replacementES devices are packaged with l

10、eads 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 assembly into which the device will be inst

11、alled.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 or the lifting of your foot from a carpeted

12、 floor can generate static electricity sufficient to damage an ES devices.CAUTION :AVR347 harman/kardonharman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoRadioFans.CN 收音机爱 好者资料库2SAFETY PRECAUTIONSThe following check should be performed for the continuedprotection of the cust

13、omer and service technician.LEAKAGE CURRENT CHECKMeasure leakage current to a known earth ground (waterpipe, conduit, etc.) by connecting a leakage current testerbetween the earth ground and all exposed metal parts of theappliance (input/output terminals, screwheads, metaloverlays, control shaft, et

14、c.). Plug the AC line cord of theappliance directly into a 120V AC 60Hz outlet and turn theAC power switch on. Any current measured must not exceedo.5mA.ANY MEASUREMENTS NOT WITHIN THE LIMITSOUTLINED ABOVE ARE INDICATIVE OF APOTENTIAL SHOCK HAZARD AND MUST BECORRECTED BEFORE RETURNING THE APPLIANCET

15、O THE CUSTOMER.DeviceundertestTest allexposed metalsurfacesAlso test withplug reversed(Using AC adapterplug as required)AC Leakage TestLeakagecurrenttesterReading shouldnot be above0.5mAEarthgroundAVR347 harman/kardonharman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoAudio S

16、ectionStereo Mode Continuous Average Power (FTC)70 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohmsSeven-Channel Surround Modes Power per Individual ChannelFront L&R channels:55 Watts per channel 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:55 Watts 0.07% THD, 20Hz20kHz in

17、to 8 ohmsSurround (L & R Side, L & R Back) channels:55 Watts per channel 0.07% THD, 20Hz20kHz into 8 ohmsInput Sensitivity/ImpedanceLinear (High-Level)200mV/47k ohmsSignal-to-Noise Ratio (IHF-A)100dBSurround System Adjacent Channel SeparationPro Logic I/II 40dBDolby Digital (AC-3)55dBDTS55dBFrequenc

18、y Response 1W (+0dB, 3dB)10Hz 130kHzHigh Instantaneous Current Capability (HCC)35 AmpsTransient Intermodulation Distortion (TIM)UnmeasurableSlew Rate40V/secFM Tuner SectionFrequency Range87.5108.0MHzUsable SensitivityIHF 1.3V/13.2dBfSignal-to-Noise RatioMono/Stereo 70/68dBDistortionMono/Stereo 0.2/0

19、.3%Stereo Separation40dB 1kHzSelectivity400kHz, 70dBImage Rejection80dBIF Rejection90dBThe AVR 347 is Simplay HD-verified for compatibilityvia the HDMI connection with other Simplay HD-verified products.AM Tuner SectionFrequency Range5201720kHzSignal-to-Noise Ratio45dBUsable SensitivityLoop 500VDist

20、ortion1kHz, 50% Mod 0.8%Selectivity10kHz, 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) 10Hz100MHz (3dB)HDMIAudio and video processing

21、GeneralPower RequirementAC 120V/60HzPower Consumption65W idle, 540W maximum (7 channels driven)Dimensions (Product)(Shipping)Width17-5/16 inches (440mm)22 inches (559mm) Height6-5/8 inches (165mm)10-1/2 inches (267mm) Depth15 inches (382mm)18-1/4 inches (464mm)(Product)(Shipping)Weight 30.6 lb (13.9

22、kg)35.6 lb (16.2kg)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 and Logic 7 are trademarks of Harman International Industries, Incorporated, registere

23、d in the United States and/or other countries. EzSet/EQ,and Designed to Entertain are trademarks of Harman International Industries, Incorporated.A-BUS is a registered trademark of LeisureTech Electronics Pty Ltd.Apple, iTunes and iPod are trademarks of Apple Inc., registered in the U.S. and other c

24、ountries.Shuffle is a trademark of Apple Inc.Audiovox is a registered trademark of Audiovox Corporation.Blu-ray Disc is a trademark of the Blu-ray Disc Association.CEA is a registered trademark of the Consumer Electronics Association.Cirrus Logic is a registered trademark of Cirrus Logic, Inc.Dolby,

25、 Pro Logic and the double-D symbol are trademarks of Dolby Laboratories.Manufactured under license from Dolby Laboratories.“DTS” and “DTS ESINeo:6” are registered trademarks of DTS, Inc.“96/24” is a trademark of DTS, Inc.Faroudja and DCDi by Faroudja are registered trademarks of Genesis Microchip In

26、c.HD-DVD is a trademark of the DVD Format/Logo Licensing Corporation (DVD FLLC).HDMI is a trademark of HDMI Licensing LLC.Microsoft and Xbox are registered trademarks of Microsoft Corporation in the United States and other countries.SACD is a trademark of Sony Corporation.The Simplay HD logo and the

27、 Simplay, Simplay HD and Simplay Labs trademarks are owned by Silicon Image, Inc. and are used under license from Silicon Image, Inc. and/or Simplay Labs, LLC.TiVo is a registered trademark of TiVo Inc.XM and XM Ready are registered trademarks of XM Satellite Radio. The Bridge TMPlease register your

28、 AVR 347 on our Web site at .NOTE: Youll need the products serial number.At the same time, you can choose to be notified about our new products and/or special promotions.AVR 347 TECHNICAL SPECIFICATIONSAVR347 harman/kardonharman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoww

29、w.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoMain Power Switch:This mechanical switch turns the power supplyon or off. It is usually left pressed in (On position), and cannot be turnedon using the remote control.Standby/On Switch:This electrical switch turns the receiver on forplaybac

30、k, or leaves it in Standby mode for quick turn-on using thisswitch or the remote control.Power Indicator:This LED has three possible modes.When mainpower is turned off, the LED is dark and the receiver wont respond toany button presses.When main power is turned on, but before theStandby/On Switch is

31、 used, the LED turns amber to indicate that thereceiver is in Standby mode and ready to be turned on.When thereceiver is turned on, the LED turns blue.Source Select:Press this button to select a source device, which is a component where a playback signal originates, e.g., DVD, CD,cable TV, satellite

32、 or HDTV tuner.Source Indicators:The name of the current source input lights up.The indicated input changes each time the Source Select button ispressed.Volume Knob:Turn this knob to raise or lower the volume, which willbe shown in decibels (dB) in the Message Display.Message Display:Various message

33、s appear in this two-line displayin response to commands and changes in the incoming signal.Whenthe on-screen display menu system (OSD) is in use, the message OSDON will appear to remind you to check the video display.Tuner Band:Press this button to select the tuner as the source, toswitch between t

34、he AM and FM bands, or to select XM satellite radio.Tuning:Press either side of this button to tune a radio station or XMchannel.Tuning Mode:This button toggles between manual (one frequencystep at a time) and automatic (seeks frequencies with acceptable signalstrength) tuning mode. It also toggles

35、between stereo and mono modeswhen an FM station is tuned.When XM Radio is in use, pressing this button repeatedly displays thechannel name, category, artist and track title in the lower line of theMessage Display. For traffic-and-weather channels, this button displaysthe city, channel name, local we

36、ather and local temperature.Preset Stations:Press this button to select a preset radio station.Headphone Jack/EzSet/EQ Microphone Input:Plug a 1/4headphone plug into this jack for private listening.This jack is also used to connect the supplied microphone before begin-ning the EzSet/EQ procedure des

37、cribed in the Initial Setup section.Tobegin EzSet/EQ, plug the supplied microphone into this jack, place themicrophone at the listening position, and follow the directions given inthe SPEAKER SETUP on-screen menu.Surround Mode:Press this button to select a surround sound (e.g.,multichannel) mode gro

38、up. Choose from the Dolby modes, DTS modes,Logic 7 modes, DSP modes or Stereo modes.Surround Select:After you have selected the desired surroundmode group, press this button to select a specific mode.Surround Mode Indicators:One or more of these icons may lightup as you select different surround mod

39、es.The Message Display alsoindicates the surround mode.Analog Audio,Video and Digital Audio Inputs:Connect asource component that will only be used temporarily, such as a cameraor game console, to these jacks. Use only one type of audio and onetype of video connection.Speaker/Channel Input Indicator

40、s:The box icons indicatewhich speaker positions you have configured, and the size (frequencyrange) of each speaker.When a digital audio input is used, letters willlight inside the boxes to indicate which channels are present in theincoming signal.Navigation:These buttons are used together with the f

41、ollowing fivebuttons to make selections.Tone Mode:Press this button to access the tone controls (bass andtreble). Use the /Navigation Buttons to make your selections.Speaker:Press this button to configure speaker sizes; that is, thelow-frequency-range capability of each speaker.Channel Level Adjust:

42、Press this button to set the output level foreach channel so that all speakers sound equally loud at the listeningposition.Digital Input Select:Press this button to select the specific digitalaudio input (or analog audio input) you used for the current source.Delay:Press this button to set delay tim

43、es that compensate for placing the speakers at different distances from the listening position.FRONT-PANEL CONTROLSAVR347 harman/kardonharman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoSurroundModeTuningPreset StationsSurroundSelectTuner BandTuning ModeSourceSelectHeadphone

44、Jack/EzSet/EQMicrophoneInputDigitalAudio Inputs(Optional 4 andCoaxial 4)Video 4Video InputsVideo 4Analog AudioInputsNavigationTone ModeSpeaker SizeSetupDelayDigital InputSelectPowerIndicatorMain PowerSwitchStandby/OnSwitchVolumeSource IndicatorsMessage DisplaySurround Mode IndicatorsSpeaker/ChannelI

45、nput IndicatorsChannel LevelAdjustNOTE: To make it easier to follow the instructions throughout the manual that refer to this illustration, a copy of this page may be downloaded from the Product Support section .AVR347 harman/kardonharman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanu

46、als.infoREAR-PANEL CONNECTIONSAM and FM Antenna Terminals:Connect the included AM andFM antennas to their respective terminals for radio reception.XM Antenna Jack:Plug in an XM antenna module here.The XMantenna module is purchased separately, and should specify that it is for home use with an XM Rea

47、dyproduct.You will need to subscribe tothe XM service, which is available separately, and activate the service foryour antenna module. (XM service is not available in Alaska and Hawaii.)Front, Center and Surround Speaker Outputs:Use two-conductor speaker wire to connect each set of terminals to the

48、correctspeaker. Remember to observe the correct polarity (positive and negative connections).Always connect the positive lead to the coloredterminal on the receiver and the red terminal on the speaker. Connectthe negative lead to the black terminal on both the receiver and thespeaker. See the Connec

49、tions section for more information on connect-ing your speakers.Surround Back/Multiroom Speaker Outputs:These speakeroutputs may be used either for the surround back channels in a 7.l-channel home theater, or they may be reassigned to a remote room foruse with a multiroom system.When these outputs a

50、re reassigned formultiroom operation, only a 5.1-channel configuration will be available inthe main listening room. Use the on-screen menu system to configurethese channels as desired.As with the other speaker outputs, remember to observe proper polarityby connecting the positive and negative output