HarmanKardon-DPR2005-avr-sm维修电路原理图.pdf
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1、harman/kardon DPR1005 DPR2005 DPR1005 DPR2005 DIGITAL PATH AUDIO/VIDEO RECEIVER SERVICE MANUAL CONTENTS NOTICES PLEASE READ FIRST.2 ELECTROSTATICALLY SENSITIVE DEVICES.3 LEAKAGE TESTING.4 DPR1005 SPECIFICATIONS. .5 DPR2005 SPECIFICATIONS. .6 FRONT PANEL CONTROLS.7 REAR PANEL CONNECTIONS.10 MAIN REMO
2、TE CONTROL FUNCTIONS.13 INSTALLATION/CONNECTIONS17 OPERATION.20 TROUBLESHOOTING GUIDE.26 PROCESSOR RESET.26 UNIT EXPLODED VIEWS.27 EXPLODED VIEW PARTS LIST.29 BLOCK DIAGRAM.31 BULLETIN HK2005-03.32 TECH TIP HKTT2003-01.33 CIRCUIT DESCRIPTION.34 D2 GR70/GR120 POWER MODULE.35 DPR1005 MECHANICAL PARTS
3、LIST.51 DPR1005 ELECTRICAL PARTS LIST.52 DPR2005 MECHANICAL PARTS LIST.63 DPR2005 ELECTRICAL PARTS LIST.64 SMPS (Power Supply) Electrical Parts List.75 SEMICONDUCTOR DATA.79 PCB DRAWINGS.103 SCHEMATICS.113 WIRING DIAGRAM.126 PACKAGING.127 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York
4、 11797 Rev1 7/2005 www.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoRadioFans.CN 收音机爱 好者资料库IMPORTANT NOTICES IMPORTANT NOTICES DPR1005 and 2005 that are under the two-year warranty period are considered factory service only in the United States. Please have Customers contact harman/kard
5、on directly at (516) 255-4545 to obtain warranty service. This service manual is being made available for units that are no longer under warranty, and products that are serviced outside the U.S. During testing, do not inject an audio signal frequency into the unit higher than 20kHz with no load. Pea
6、king in the output filter can cause the output voltages to exceed the filter capacitor voltage rating in this design. Normal audio program material will not have enough energy to cause problems. Avoid test tones above 20kHz. The following pages 8 - 27, reprinted from the DPR2005 owners manual, are a
7、ccurate for every feature and operation of both the DPR1005 and DPR2005 with the following exception: The only feature difference between the two models is located in the front accessory jacks. On the 2005 the Front-panel digital coaxial/optical jacks may be used as either Inputs or Outputs. Those s
8、ame jacks on the 1005 are for Inputs only; therefore there is also a missing indicator light for this function. For an accurate explanation of these jacks, refer to the DPR1005 owners manual. DPR1005/2005 DPR1005/2005 harman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.infoRadioF
9、ans.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 resistan
10、ce, 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 ca
11、n 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
12、 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 discharg
13、ing 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 ex
14、posure 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 c
15、hemicals. 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 fo
16、am, 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
17、 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 t
18、o damage an ES devices.CAUTION :DPR1005/DPR2005 harman/kardonPR1005/DPR2005 harman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.info 1. Inspect all lead dress to make certain thatleads are not pinched or that hardware is notlodged between the chassis and other metalpartsintheunit
19、.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
20、 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 no
21、t 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
22、 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.(Thistestshouldbeperformedwiththe0.35vol
23、tRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningtheunittotheowner.DPR1005/DPR2005 harman/kardonPR1005/DPR2005 harman/kardon www.freeservicemanuals.infoIts Freewww.freeservicemanuals.info250 Crossways Park Drive,Woodbury, New York 11797 2004 Harman Internation
24、al Industries, Incorporated Part No. ZKD0301HA00-9DPR 1005 TECHNICAL SPECIFICATIONSAudio SectionStereo Mode Continuous Average Power (FTC)70 Watts per channel, 20Hz20kHz, 0.15% THD, both channels driven into 8 ohmsSeven-Channel Surround Modes Power per Individual ChannelFront L&R channels:70 Watts p
25、er channel 0.15% THD, 20Hz20kHz into 8 ohmsCenter channel:70 Watts 0.15% THD, 20Hz20kHz into 8 ohmsSurround (L & R Side, L & R back) channels:70 Watts per channel 0.15% THD, 20Hz20kHz into 8 ohmsInput Sensitivity/ImpedanceLinear (High-Level)200mV/47k ohmsSignal-to-Noise Ratio (IHF-A)97dBSurround Sys
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