HarmanKardon-Signature2_0-avr-sm维修电路原理图.pdf

harman/kardon SIGNATURE 2.0 SIGNATURE 2.0 PROCESSOR/TUNER SERVICE MANUAL CONTENTS ESD, LEAKAGE, SAFETY .2 BASIC SPECIFICATIONS.5 FEATURES.7 QUICK START GUIDE.9 FRONT PANEL CONTROLS.13 REAR PANEL CONNECTIONS15 REMOTE CONTROL FUNCTIONS.17 TROUBLESHOOTING GUIDE.21 PROCESSOR RESET.21 TROUBLESHOOTING CHART23 BASS/TREBLE CHARTS24 MECHANICAL ASSEMBLY25 BULLETIN HK9708.30 BULLETIN HK9709.31 BULLETIN HK9904.32 BULLETIN HK2000-07.33 IC U305 Replacement Instructions.34 Signature 2.0 Upgrade Procedure.35 VERSION CHANGES36 Auto Detect Mode ON40 SCHEMATICS.41 PCB DRAWINGS.70 ELECTRICAL PARTS LIST.76 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 8/2006 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 : Signature 2.0 Processor/Tuner harman/kardon Signature 2.0 Processor/Tuner harman/kardon RadioFans.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 and 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-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, 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,inserieswithallexposedmetalcabinetpartsandaknownearthground,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,knobsandcontrolshafts,escutcheon,etc.)andmeasuretheACvoltagedropacrosstheresistor.(Thistestshouldbeperformedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningtheunittotheowner. Signature 2.0 Processor/Tuner harman/kardon Signature 2.0 Processor/Tuner harman/kardon Safety Information2Signature 2.0Important Safety InformationVerify Line Voltage Before UseThis Signature 2.0 has been designed for use with 120-volt AC current. Connection to a line voltage otherthan that for which it is intended can create a safety andfire hazard, and may damage the unit.If you have any questions about the voltage require-ments for your specific model, or about the line voltagein your area, contact your selling dealer before pluggingthe unit into a wall outlet.Do Not Use Extension CordsTo avoid safety hazards, use only the power cordattached to your unit. We do not recommend thatextension cords be used with this product. As with allelectrical devices, do not run power cords under rugs or carpets or place heavy objects on them. Damagedpower cords should be replaced immediately with cordsmeeting factory specifications.Handle the AC Power Cord GentlyWhen disconnecting the power cord from an AC outlet,always pull the plug, never pull the cord. If you do notintend to use the unit for any considerable length oftime, disconnect the plug from the AC outlet.Do Not Open The CabinetThere are no user-serviceable components inside thisproduct. Opening the cabinet may present a shockhazard, and any modification to the product will voidyour guarantee. If water or any metal object such as a paper clip, wire or a staple accidentally falls inside the unit, disconnect it from the AC power sourceimmediately, and consult an authorized service station. CATV or Antenna GroundingIf an outside antenna or cable system is connected to this product, be certain that it is grounded so as toprovide some protection against voltage surges and staticcharges. Section 810 of the National Electrical Code,ANSI/NFPA No. 70-1984, provides information withrespect to proper grounding of the mast and supportingstructure, grounding of the lead-in wire to an antennadischarge unit, size of grounding conductors, location of antenna discharge unit, connection to groundingelectrodes and requirements of the grounding electrode.NOTE TO CATV SYSTEM INSTALLER:This reminder is provided to call the CATV (Cable TV)system installers attention to article 820-40 of the NECthat provides guidelines for proper grounding and, inparticular, specifies that the cable ground shall beconnected to the grounding system of the building, asclose to the point of cable entry as possible.Installation LocationI To assure proper operation, and to avoid the potentialfor safety hazards, place the unit on a firm and levelsurface. When placing the unit on a shelf, be certainthat the shelf and any mounting hardware can supportthe weight of the product.I Make certain that proper space is provided both aboveand below the unit for ventilation. If this product willbe installed in a cabinet or other enclosed area, makecertain that there is sufficient air movement within the cabinet. Under some circumstances a fan may be required.I Do not place the unit directly on a carpeted surface. I Avoid installation in extremely hot or cold locations,or an area that is exposed to direct sunlight or heating equipment.I Avoid moist or humid locations.I Do not obstruct the ventilation slots on the top of theunit, or place objects directly over them.CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUAU FOND.The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPEN4 Signature 2.0 Processor/Tuner harman/kardon Signature 2.0 Processor/Tuner harman/kardon Technical Specifications65Signature 2.0Signature 2.0 Processor/Tuner SpecificationsInputs:Analog Audio:Six Stereo pairs via RCA jacksDigital Audio:Four Coaxial S/P-DIF, Two Optical TosLinkExternal Adapter:Six Direct Analog channels via RCA jacksComposite Video:Six RCA jacksS-Video:Two 4-pin mini DINIR Sensor Input:3.5mm mono mini-plugOutputs:Main Audio:Six Analog Outputs via RCA jacks (left, center, right, right surround, left surround, subwoofer)Main Video:One Composite RCA jack output paralleled withone S-Video 4-pin mini DINRecord Audio:Two pair (paralleled) analog via RCA jacksRecord Video:One Composite via RCA jack paired withone S-Video via 4-pin mini DINIR Sensor:Loop-through output via 3.5mm mono mini plugAccessory Trigger:6 12 volt DC via 3.5mm mono mini plug, tip positive, 150mA maximum.Surround Modes:Analog:Dolby Pro Logic, Four Movie Modes, Four Music Modes, Stereo, Mono, Mono +Digital:Dolby Digital, Dolby Digital Late Night, Dolby DigitalPro Logic, Dolby Digital Mono, DTS 5.1, DTS 4-Channel, DTS 2-Channel, Stereo, Mono +Preamplifier:Frequency Response:Front Channels (Analog Stereo): 20Hz to 50kz, 0.5dBCenter and Surround Channels: 20Hz to 30kHz, 1dBSubwoofer Channel: 10Hz to 100Hz, 1dBTHD + N:0.03%, 20Hz to 20kHzS/N Ratio:87dBr, 20Hz to 20kHzCrosstalk:10KVideo: 75Output Impedance:Audio: 300Video: 75Crossovers:Low Pass: 3 Pole (18dB/Octave) 100HzHigh Pass: 3 Pole (18dB/Octave) 100HzTone Controls:Treble Cut: 0dB to 8dB in 2dB steps 10kHz shelvingBass Boost: +0dB to +8dB in 2 steps 50HzVideo Standards:NTSC, PAL5 Signature 2.0 Processor/Tuner harman/kardon Signature 2.0 Processor/Tuner harman/kardon Technical Specifications66Signature 2.0Signature 2.0 Processor/Tuner Specifications (continued)Tuner Section FM:Frequency Range:87.5 to 108.0MHz in 200kHz stepsUsable Sensitivity:1.0 V/11.2dBfSignal-To-Noise:70dB (Stereo, A-weighted)S/N 50dB Sensitivity:45dBfTHD + N:0.5% Capture Ratio:50dBImage Rejection:70dB ( 106MHz)IF Rejection:85dBEffective Selectivity:50dB (400kHz)Stereo Separation:40dB (1kHz)RDS Modes:Station ID, Program Type, Radio Text Data, Program Type SearchTuner Section AM:Frequency Range:520 1710 kHz in 10kHz stepsSignal-To-Noise Ratio:40dBUsable Sensitivity:500V/MSelectivity:30dB (10kHz)General:Power Requirement:AC 115V/60HzPower Consumption:5.5W Idle, 75W MaximumDimensions:(Max, including knobs, jacks, buttons)Width: 17 38inches (441mm)Height: 4 18inches (105mm)Depth: 1538inches (395mm)Weight:22 lbs. (10.5 kg)All features and specifications are subject to change without notice.*Trademarks of Dolby Laboratories.DTS and DTS Surround are trademarks of Digital Theater Systems.6 Signature 2.0 Processor/Tuner harman/kardon Signature 2.0 Processor/Tuner harman/kardon Introduction1Signature 2.0Congratulations! With the purchase of a HarmanKardon Signature Series product you are about to beginmany years of listening enjoyment. The Model 2.0Processor/Tuner has been designed to provide all theexcitement and detail of motion picture soundtracks andreproduce every subtle nuance of your favorite musicalselection. On-board Dolby* Digital and DTSdecodingenables the 2.0 to deliver six channels of fully discretesound from the exciting new digital audio formats thatare a part of DVD and HDTV broadcasts. A wide selec-tion of matrix decoding modes delivers full compatibilitywith conventional Dolby Surround stereo and monoprograms. The 2.0 is also ready to accept future surroundsystems through the use of six-channel direct inputs that accommodate optional outboard decoders for futuresurround systems.MuteTuneSurroundSource 2.0 StandbyOn/OffDVD VolDolby Digital 10While complex digital circuits are hard at work withinthe 2.0, a simple F menu system and learning remotecontrol make the unit easy to install and operate. In addition to selecting from a variety of audio/videosources, the Signature 2.0 is equipped with the latest in tuner technology, including the RDS data system that automatically identifies FM stations transmittingspecial data and provides information they transmitabout the stations programming. The RDS system evenlets you automatically search for a station with a specificprogram type from the participating stations in yourreception area.To obtain maximum benefit from the Signature 2.0smany features we urge you to take a few minutes to readthrough this manual. That will ensure that connectionsto playback sources, power amplifiers and other externaldevices are made properly. In addition, a few minutesspent learning the functions for the various controls andthe meaning of the on-screen and front panel display messages will enable you to take advantage of all the power the Signature 2.0 is able to deliver.Harman Kardon has been a part of the audio world since it invented the first high-fidelity receiver over forty-five years ago. With the combination of state-of-the-artcircuitry and time honored design philosophies, the Signature 2.0 is one of the most innovative products ever offered by Harman Kardon. Should you have anyquestions about this product, its operation or installation that are not answered in this manual please contact yourretailer or custom installer. They are your best source for product information. You may also contact Harman Kardon via the World Wide Web at The following are among the 2.0s many features:I On-Board Dolby Digital and DTS DecodingI Multiple Coax and Optical Digital InputsI Composite and S-Video SwitchingI Easy-To-Use On-Screen Menu Control SystemI FM Stereo/AM Tuner With RDS Data System and 30 PresetsI Learning Remote Control Pre-Programmed WithHarman Ka