HarmanKardon-AVR3550HD-avr-sm1维修电路原理图.pdf

harman/kardon AVR 3550HD AVR 3550HD 7 X 75W 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.18 TROUBLESHOOTING GUIDE.23 PROCESSOR RESET.24 DISASSEMBLY25 UNIT EXPLODED VIEW.26 EXPLODED VIEW PARTS LIST27 AMP BIAS ADJUSTMENT.28 BLOCK DIAGRAM.29 ELECTRICAL PARTS LIST.30 PCB DRAWINGS.72 SEMICONDUCTOR PINOUTS.80 SCHEMATICS199 WIRING DIAGRAM.213 harman/kardon, Inc. 250 Crossways Park Dr. Released 2008 Woodbury, New York 11797 Rev0 12/2008 Discontinued XXXX RadioFans.CN 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 the parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably insulated 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 called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor 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 on your 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, to prevent 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 charges sufficient 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 replacement ES 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 the chassis 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 together or your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices. CAUTION : AVR3550HD harman/kardonharman/kardon RadioFans.CN 2 SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60Hz outlet and turn the AC power switch on. Any current measured must not exceed o.5mA. ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. Device under test Test all exposed metal surfaces Also test with plug reversed (Using AC adapter plug as required) AC Leakage Test Leakage current tester Reading should not be above 0.5mA Earth ground AVR3550HD harman/kardonharman/kardon RadioFans.CN 75 AVR 3550HD TECHNICAL SPECIFICATIONS Audio Section Seven-Channel Surround Modes Power per Individual Channel Front L 5,956,674; 5,974,380; 5,978,762; 6,226,616; 6,487,535; 7,003,467 and other U.S. and worldwide patents issued and pending. DTS, DTS-ES and DTS Neo:6 are registered trademarks, and DTS 96/24, DTS-HD and DTS-HD Master Audio are trademarks, of DTS, Inc. 1996-2007 DTS, Inc.All Rights Reserved. Faroudja DCDi Cinema is a trademark of Genesis Microchip Inc. HD-DVD is a trademark of the DVD Format/Logo Licensing Corporation (DVD FLLC). HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC. SACD is a trademark of Sony Corporation. TiVo is a registered trademark of TiVo Inc. XM and XM Ready are registered trademarks of XM Satellite Radio. AVR 3550HD OM.qxd 7/23/08 4:37 PM Page 75 4 AVR3550HD harman/kardonharman/kardon RB46G00 RB46G00 Owners Manual AVR 3550HDAVR 3550HD 5 AVR3550HD harman/kardonharman/kardon visit 8 FRONT-PANEL CONTROLS Standby/On Switch:This electrical switch turns the receiver on for playback, or leaves it in Standby mode for quick turn-on using this switch or the remote control. Power Indicator:This LED has three possible modes: Main Power Off: When the AVR is unplugged or the rear-panel Main Power Switch is off, this LED is off. Standby: The LED is amber, indicating that the AVR is ready to be turned on. On: The LED is white, when the AVR is on and operating normally. NOTE: If the PROTECT message ever appears, turn off the AVR and unplug it. Check all speaker wires for a possible short. If none is found, bring the unit to an authorized Harman Kardon service center for inspection and repair before using it again. Source List:Press this button to select a source device, which is a component where a playback signal originates, such as DVD, cable TV, satellite or the tuner. Volume Knob:Turn this knob to raise or lower the volume. 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. Headphone Jack/EzSet/EQ Microphone Input:Plug a 1/4 headphone plug into this jack for private listening. This jack is also used to connect the supplied microphone for the EzSet/EQ procedure described in the Initial Setup section.To begin EzSet/EQ, plug the supplied microphone into this jack, place the micro- phone at the listening position, and follow the directions given in the Speaker Setup-Automatic Setup-EzSet/EQ on-screen menu. Surround Modes:Press this button to select a surround sound (e.g., multichannel) mode.The Surround Modes menu will appear on screen, and the menu line will appear in the front-panel display. Use the front-panel or remote /Buttons to highlight a different menu line:Auto Select,Virtual Surround, Stereo, Movie, Music or Video Game. Each line represents a type of audio signal, and is set to the preferred surround mode that you manually select. Press the OK Button when the menu line is highlighted, and the available surround mode options for the current signal will appear. Use the /Buttons to select the desired mode, and press the OK Button to engage it. Press the Back/Exit Button to exit the Surround Modes menu. See the Advanced Functions section for more information on surround modes. Analog Audio,Video and Digital Audio Front Inputs:Connect a source component that will only be used temporarily, such as a digital camera or game console, to these jacks. Use only one type of audio and one type of video connection. NOTES: Each of these connections (analog audio, digital audio and video) may be independently assigned to any source. See the Initial Setup section for information on setting up sources, including assigning audio and video inputs to a source. The AVRs menus refer to these jacks as the Optical Front, Coaxial Front, Composite Front, S-Video Front and Analog Front inputs. Speaker/Channel Input Indicators:The box icons indicate which speaker positions you have configured (see the Initial Setup Section), and the size (frequency range) of each speaker.The letters will light inside the boxes to indicate which channels are present in the incoming signal. Navigation:These buttons are used to navigate the AVRs menus and to operate the tuner. Remote IR Sensor:This sensor receives infrared (IR) commands from the remote control. It is important to ensure that it is not blocked. If covering the sensor is unavoidable, such as when the AVR 3550HD is placed inside a cabinet, you may use an optional Harman Kardon HE 1000, or other infrared receiver, connecting it to the Remote IR Input on the AVR 3550HDs rear panel.Alternatively, connect the Remote IR Output of another compatible component to the AVR 3550HDs Remote IR Input. Point the remote at the other devices remote sensor, and the command will be transmitted to the AVR 3550HD.An external IR “blaster” may also be used, positioned to point at this area. AVR Settings Button:Press this button to access the AVRs main menu. Info Settings Button:Press this button to directly access the AVRs Source Info submenu, which contains the settings for the current source. Resolution:Each press of this button changes the AVRs video output resolution to these settings: 480i, 480p, 720p, 1080i or 1080p. IMPORTANT NOTE: If the AVRs video output resolution is set higher than the capabilities of the actual connection, you will not see a picture. If the best video connection from the AVR to the TV is either composite or S-video, press this button until the resolution is set to 480i. Audio Effects:Press this button to directly access the Audio Effects submenu, which allows adjustment of the tone and other controls. See the Initial Setup section for more information. Video Modes:Press this button for direct access to the Video Modes submenu, which contains settings that may be used to improve the picture if necessary after you have adjusted the picture settings using the video display or TV. OK:Press this button to select the currently highlighted item. Back/Exit:Press this button to return to the previous menu, or to exit the menu system. AVR 3550HD OM.qxd 7/23/08 4:36 PM Page 8 6 AVR3550HD harman/kardonharman/kardon ResolutionNavigationVideo Modes Source List Back/Exit OK Navigation Headphone Jack/EzSet/EQ Microphone Input Digital Audio Inputs (Optical and Coaxial Front) Remote IR Sensor Video Front Inputs Analog Audio Front Inputs Surround Modes Audio Effects AVR Settings Standby/On Switch Info Settings VolumeMessage DisplayPower Indicator Speaker/Channel Input Indicators / / NOTE: 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 at . AVR 3550HD OM.qxd 7/23/08 4:36 PM Page 9 7 AVR3550HD harman/kardonharman/kardon 10 REAR-PANEL CONNECTIONS Main Power Switch:This mechanical switch turns the power supply on or off. It is usually left in the up position (On), and cannot be turned on using the remote control. AM and FM Antenna Terminals:Connect the included AM and FM antennas to their respective terminals for radio reception. XM Antenna Jack:Plug in an XM Connect-and-Play or Mini-Tuner antenna module here.The XM antenna module is purchased separately, and should specify that it is for home use with an XM Readyproduct. You will need to subscribe to the XM service, which is available sepa- rately, and activate the service for your 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 correct speaker. Remember to observe the correct polarity (positive and negative connections).Always connect the positive lead to the colored terminal on the receiver and the red terminal on the speaker. Connect the negative lead to the black terminal on both the receiver and the speaker. See the Connections section for more information on connecting your speakers. Surround Back/Zone 2 Speaker Outputs:These speaker outputs are used for the surround back channels in a 7.1-channel home theater, or may be reassigned to a remote room for multizone operation. When these outputs are reassigned for multizone operation, only a 5.1-channel configuration will be available in the main listening room. Use the on-screen menu system to configure these channels as desired. As with the other speaker outputs, remember to observe proper polarity by connecting the positive and negative output terminals to the corresponding terminals on each speaker. Subwoofer Output:If you have a powered subwoofer with a line-level input, connect it to this jack. Preamp Outputs:Connect these jacks to an external amplifier if more power is desired. The Surround Back/Zone 2 Preamp Outputs may be used with an external amplifier to power the surround back channels, or to power the remote zone of a multizone system. Use the on-screen menu system to configure these channels as desired. Remote Infrared (IR) Input and Output:When the remote IR receiver on the front panel is blocked, such as when the AVR is placed inside a cabinet, connect an optional IR receiver to the Remote IR Input jack for use with the remote control.The Remote IR Output may be connected to the Remote IR Input of a compatible product to enable remote control through the AVR.This is particularly useful in multizone applications to control a source device from the remote room (when used with the Zone 2 IR Input).When several source devices are used, connect them in “daisy chain” fashion. Zone 2 Infrared (IR) Input:Connect a remote IR receiver located in the remote zone of a multizone system to this jack to control the AVR (and any source devices connected to the Remote IR Output) from the remote zone. Remote IR Carrier Output:This output is similar in function to the Remote IR Output, with the difference that this jack outputs the full infrared signal as received by the AVRs IR sensor or the Remote IR Input, while the Remote IR Output jack outputs a “stripped” signal that has no carrier frequency.The full signal may be required by some components with IR inputs. It may also be r