HarmanKardon-AVR2650-avr-sm1维修电路原理图.pdf

harman/kardon AVR 2650 AVR 2650 7 X 95W 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.10 CONNECTIONS/INSTALLATION.12 OPERATION.19 TROUBLESHOOTING GUIDE.24 REMOTE & PROCESSOR RESETS.25 DISASSEMBLY.26 UNIT EXPLODED VIEW.27 EXPLODED VIEW PARTS LIST28 AMP BIAS ADJUSTMENT.29 BLOCK DIAGRAM.30 PCB DRAWINGS.32 ELECTRICAL PARTS LIST.47 SEMICONDUCTOR PINOUTS.103 SCHEMATICS.224 WIRING DIAGRAM.241 harman/kardon, Inc. Released 2011 8500 Balboa Blvd. Discontinued XXXX Northridge, CA. 91329 Rev1 9/2011 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 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 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 calledElectrostatically 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. Immediately 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 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 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 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. (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 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 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 floor can generate static electricity sufficient to damage an ES devices.CAUTION :AVR 2650 AVR 2650 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库2SAFETY PRECAUTIONSThe following check should be performed for the continuedprotection of the customer 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, etc.). 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 APPLIANCETO THE CUSTOMER.DeviceundertestTest allexposed metalsurfacesAlso test withplug reversed(Using AC adapterplug as required)AC Leakage TestLeakagecurrenttesterReading shouldnot be above0.5mAEarthgroundAVR 2650 AVR 2650 harman/kardonharman/kardon 3AVR44SpecificationsAudio SectionStereo power:AVR 3650/AVR 365: 110W per channel, two channels driven 8 ohms, 20Hz 20kHz, 0.09% THDAVR 2650/AVR 265: 95W per channel, two channels driven 8 ohms, 20Hz 20kHz, 0.09% THDMultichannel power:AVR 3650/AVR 365: 110W per channel, two channels driven 8 ohms, 20Hz 20kHz, 0.09% THDAVR 2650/AVR 265: 95W per channel, two channels driven 8 ohms, 20Hz 20kHz, 0.09% THDInput sensitivity/impedance:200mV/47k ohmsSignal-to-noise ratio (IHF-A):100dBSurround system adjacent channel separation:Dolby Pro Logic/DPLII: 40dBDolby Digital: 55dBDTS: 55dBFrequency response ( 1W):10Hz 130kHz (+0dB/3dB)High instantaneous current capability (HCC): 35 ampsTransient intermodulation distortion (TIM):UnmeasurableSlew rate:40V/secSpecificationsFM Tuner SectionFrequency range:87.5 108.0MHzUsable sensitivity IHF:1.3V/13.2dBfSignal-to-noise ratio (mono/stereo):70dB/68dBDistortion (mono/stereo):0.2%/0.3%Stereo separation:40dB 1kHzSelectivity (400kHz):70dBImage rejection:80dBIF rejection:90dBAM Tuner SectionFrequency range:520 1710kHz (AVR 3650/AVR 2650)522 1620kHz (AVR 365/AVR 265)Signal-to-noise ratio:45dBUsable sensitivity (loop):500VDistortion (1kHz, 50% mod):0.8%Selectivity (10kHz):30dBVideo SectionTelevision format:NTSC (AVR 3650/AVR 2650); PAL (AVR 365/AVR 265)Input level/impedance:1Vp-p/75 ohmsOutput level/impedance:1Vp-p/75 ohmsVideo frequency response (composite video):10Hz 8MHz (3dB)HDMI:Version 1.4a with 12-bit Deep ColorGeneral SpecificationsPower requirement:120V AC/60Hz (AVR 3650/AVR 2650); 220V 240V AC/50Hz 60Hz (AVR 365/AVR 265)Power consumption:0.5W (standby); 480W maximum (AVR 3650/AVR 365); 420W maximum (AVR 2650/AVR 265)Dimensions (W x H x D): 17-5/16 x 6-1/2 x 17-1/8 (440mm x 165mm x 435mm)Weight(AVR 3650/AVR 365): 27.25 lb (12.4kg)(AVR 2650/AVR 265): 24.4 lb (11.1kg)Depth measurement includes knobs, buttons and terminal connections.Height measurement includes feet and chassis.AVR 2650 AVR 2650 harman/kardonharman/kardon 4FOAM PAD (L)FOAM PAD (R)AVR 2650OUTER CARTONAVR 2650OUTER CARTONAVR 2650 harman/kardon 5Front-Panel ControlsAVR4Front-Panel ControlsVolumeKnobMessageDisplayPowerButtonPowerIndicatorInfoButtonAudioEffectsButtonUSBPortSetupButtonUp/DownButtonsResolutionButtonHDMI FrontInput ConnectorVideoModesButtonIRSensorBack/ExitButtonOKButtonSource ListButtonSurroundModesButtonLeft/RightButtonsHeadphone Jack/EzSet/EQMic InputContinued on next pagePower IndicatorMessage DisplayVolume KnobVideo Modes ButtonSetup ButtonIR SensorPower ButtonLeft/Right ButtonsHeadphone Jack/ EzSet/EQ Mic InputBack/Exit ButtonResolution ButtonAudio Effects ButtonSurround Modes ButtonUp/Down ButtonsUSB PortOK ButtonHDMI Front Input ConnectorInfo ButtonSource List ButtonAVR 2650 AVR 2650 harman/kardonharman/kardon 6AVRFront-Panel Controls, continuedPower Indicator: This LED has three possible modes: LED is off: Indicates that the AVR is unplugged or the rear-panel Main Power switch is off. LED glows amber: Indicates that the AVR is in the Standby mode. LED glows white: Indicates that the AVR is turned on.IMPORTANT NOTE: If the PROTECT message ever appears on the AVRs front-panel message display, turn off the AVR and unplug it from the AC outlet. Check all speaker wires for a possible short-circuit (the “+” and “” conductors touching each other or both touching the same piece of metal). If a short-circuit is not found, bring the unit to an authorized Harman Kardon service center for inspection and repair before using it again.Power button: Press this button to turn the receiver on or to place it in the Standby mode.Setup button: Press this button to access the AVRs main menu.Info button: Press this button to access the AVRs Source submenu, which contains the settings for the source currently playing. Use the Up/Down buttons to scroll through the different settings.Message display: Various messages appear in this two-line display in response to commands and changes in the incoming signal. In normal operation, the current source name appears on the upper line, while the surround mode is displayed on the lower line. When the on-screen display menu system (OSD) is in use, the current menu settings appear.IR sensor: This sensor receives infrared (IR) commands from the remote control. It is important to ensure that the sensor is not blocked. AVR 3650/AVR 365 only: If covering the IR sensor is unavoidable (such as when the receiver is installed inside of a cabinet), connect an optional infrared receiver to the Remote IR In connector on the AVRs rear panel.Up/Down buttons: Use these buttons to navigate the AVRs menus.Volume knob: Turn this knob to raise or lower the volume.USB port: You can use this port to perform software upgrades that may be offered in the future. Do not connect a storage device, peripheral product or a PC here, unless you are instructed to do so as part of an upgrade procedure.HDMI (High-Definition Multimedia Interface) Front Input connector: Connect an HDMI-capable source component that will be used only temporarily, such as a camcorder or game console, here. Resolution button: Press this button to access the AVRs video output resolution setting: 480i, 480p, 720p, 1080i, 1080p or 1080p/24Hz. Use the Up/Down and OK buttons to change the setting.IMPORTANT NOTE: If you set the AVRs video output resolution higher than the capabilities of the actual connection between the AVR and your TV or video display, you will not see a picture. If you are using the composite video connection from the AVR to your TV (see Connect Your TV or Video Display, on page 17), press the Resolution button and use the Up/Down and OK buttons to change the resolution to 480i.Audio Effects button: Press this button to access the Audio Effects submenu, which allows you to adjust the AVRs tone controls and other audio controls. See Set Up Your Sources, on page 26, for more information.Video Modes button: Press this button for direct access to the Video Modes submenu, which contains settings you can use to improve the video picture. Use the OK button to scroll through the different modes, and use the Up/Down and Left/Right buttons to make adjustments within each mode. See Set Up Your Sources, on page 26, for more information.Surround Modes button: Press this button to select a listening mode. The Surround Modes menu will appear on screen, and the menu line will appear in the front-panel display. Use the Up/Down buttons to change the surround-mode category and the Left/Right buttons to change the surround mode for that category. See Set Up Your Sources, on page 26, for more information.Back/Exit button: Press this button to return to the previous menu or to exit the menu system.Left/Right buttons: Use these buttons to navigate the AVRs menus.OK button: Press this button to select the currently highlighted item.Headphone jack/EzSet/EQ Mic input: Connect a 1/4 stereo headphone plug to this jack for private listening. This jack is also used to connect the supplied microphone for the EzSet/EQ procedure described in Configure the AVR For Your Speakers, on page 25.Source List button: Press this button to select a source device to watch/listen to. Use the Up/Down buttons to scroll through the source-device list, and press the OK button to select the source being displayed. Front-Panel Controls, continuedAVR 2650 AVR 2650 harman/kardonharman/kardon 7Rear-Panel ConnectorsAVR6Rear-Panel ConnectorsAnalog Record Out connector: Connect this analog audio output to the analog audio input of a recording device. A signal is available at this output whenever an analog audio source is playing.HDMI Monitor Out connector: If your TV has an HDMI connector, use an HDMI cable (not included) to connect it to the AVRs HDMI Monitor Out connector. The AVR will automatically transcode component and composite video input signals to the HDMI format (upscaling to as high as 1080p), so you do not need to make any other connections to your TV from the AVR or from any of your video source devices.Notes on using the HDMI Monitor Out connector: When connecting a DVI-equipped display to the HDMI Monitor Out connector, use an HDMI-to-DVI adapter and make a separate audio connection. Make sure the HDMI-equipped display is HDCP (High-bandwidth Digital Content Protection)-compliant. If it isnt, do not connect it via an HDMI connection; use an analog video connection instead and make a separate audio connection.HDMI Input connectors: An HDMI connection transmits digital audio and video signals between devices. If your source devices have HDMI connectors, using them will provide the best possible video and audio performance quality. Since the HDMI cable carries both digital video and digital audio signals, you do not have to make any additional audio connections for devices you connect via the HDMI connection. See Connect Your Audio and Video Source Devices, on page 18, for more information.Composite Video Input connectors: Use composite video connectors for video source devices that dont have HDMI or component video connectors. You will also need to make an audio connection from the source device to the AVR. See Connect Your Audio and Video Source Devices, on page 18, for more information.Digital Audio Input connectors: If your non-HDMI source devices have digital outputs, connect them to the AVRs digital audio connectors. NOTE: Make only one type of digital connection (HDMI, optical or coaxial) from each device. See Connect Your Audio and Video Source Devices, on page 18, for more information.SpeakerConnectorsHDMI InputConnectorsAnalog AudioInput ConnectorsZone 2 OutConnectorNetworkConnectorSubwooferConnectorOpticalDigital OutputConnectorAC InputConnectorFanVentsMain PowerSwitchRS-232ConnectorIR RemoteIn/Out Connectors(AVR 3650/AVR365)HDMIMonitor OutConnectorRadio AntennaConnectorsDigital AudioInput ConnectorsAnalogRecord OutConnectorComponentVideo InputConnectorsCompositeVideo InputConnectorsCompositeVideo MonitorOut ConnectorCompositeVideo RecordOut ConnectorThe Bridge IIIPConnectorSIRIUS TunerConnector(AVR 3650/AVR 2650)Zone 2 IR InConnector(AVR 3650/AVR365)12VTriggerConnectorRear-Panel Connectors (AVR 3650 shown)Continued on next pageHDMI Input ConnectorsAnalog Record Out ConnectorHDMI Monitor Out ConnectorDigital Audio Input ConnectorsThe Bridge IIIP ConnectorComposite Video Input ConnectorsComposite Video Monitor Out ConnectorComposite Video Record Out ConnectorComposite Video Input ConnectorsSIRIUS Tuner Connector (AVR 3650/AVR 2650)12V Trigger Connector Zone 2 IR In Connector (AVR 3650/AVR 365)Subwoofer ConnectorRadio Antenna ConnectorsOptical Digital Output Connecto