HarmanKardon-AVR500-avr-sm维修电路原理图.pdf

harman/kardon AVR500 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS SPECIFICATIONS .2 ESD WARNINGS 4 LEAKAGE TEST. 5 CONTROLS AND FUNCTIONS6 SERVICE PROCEDURE. .9 TEST EQUIPMENT REQUIRED 9 ALIGNMENT PROCEDURES9 ALIGNMENT AND TEST POINTS. 11 CIRCUIT DESCRIPTION.13 BLOCK DIAGRAM .16 BULLETIN HK2000-02.17 BULLETIN HK2000-04.19 BULLETIN HK2000-05.21 DISASSEMBLY PROCEDURES .23 GENERAL UNIT PARTS LIST .24 GENERAL UNIT EXPLODED VIEW. 26 PC . BOARDS .27 ELECTRICAL PARTS LIST .32 IC BLOCK DIAGRAMS .55 CPU PIN CONFIGURATION.75 FLT PIN CONFIGURATION. 76 SCHEMATIC DIAGRAMS .83 PIN CONNECTION DIAGRAM .92 WIRING DIAGRAM .93 PACKING MATERIAL AND PARTS LIST94 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 11/2003 RadioFans.CN 收音机爱 好者资料库 8 ohms, Dolby Pro Logic100Hz-20kHz 150Hz-20kHz All Channel Driven65W65W Input Shorted, IHF-A WTD65dB60dB RMS Output Power 500RadioFans.CN 收音机爱 好者资料库 500RadioFans.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 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 : - 4 - 500RadioFans.CN 收音机爱 好者资料库 1. lnspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal partsintheunit. 2. Be sure that any protective devices such as nonmetallic control knobs, insulating fish- papers,cabinetbacks,adjustmentand compartment covers or shields, isolation resistor-capacitynetworks,mechanical insulators, etc. Which were removed for the servicingareproperlyre-installed. Before returning the unit to the user, perform the following safety checks : 3. Be sure that no shock hazard exists ; check for leakage currentusingSimpsonModel229LeakageTester,standard equipment item No. 21641, RCA Model WT540A or use alternate method as follows : Plug the power cord directly Into a 120 volt AC receptacle (do not use an Isolation Transformer for this test). Using two clip leads, connect a 1500ohms,10wattResistorparalleledbya0.15uFcapacitor,inserieswithallexposedmetalcabinetpartsandaknownearthground,such as 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 the resistor. (See diagram) Move the resistor connection to each exposed metal part having a return path to the chassis (antenna, metal, be performedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningthe unittotheowner. - 5 - 500RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 SWITCHED TOTAL 150W or 0.5A MAX. UNSWITCHED TOTAL 100W or 1A MAX. (120V.60Hz) TOTAL 150W or 1.5A MAX MODEL NO. AVR 500 HARMAN KARDON NORTHRIDGE CALIFORNIA, USA FM (75 ) AM ANTENNA GND AC 120V 60 Hz IN LR OUT TAPE VIDEO 2 IN OUT VIDEO 1 DVD CD SLFLCENTER COAXIAL 2COAXIAL 1 SRFRSUB WOOFER SLSUB WOOFERFLML SRCENTERFRMR 6 CH. DIRECTMULTI OUTPRE OUT SERIAL NO. AC OUTLETS RIGHT SPEAKERS 8 Ohms LEFT SURROUND OUTIN TV MONITOR OUT VIDEO 2 IN OUT DVD VIDEO 1 OPTICAL 2 OPTICAL 1 OPTICAL 1 COAXIAL 1 DIGITAL OUTPUT MULTI IN DIGITAL INPUT VIDEO REMOTE CONTROL RIGHT SPEAKERS 8 OhmsSPEAKER 8 Ohm LEFTCENTER FRONTCENTER VIDEO 1 DIGITAL INPUT SLEEPTUNED STEREOAUTOMONOPRESET SURR. OFF MUTE PCMTHEATER LOGIC 7 CLOGIC 7 MVMAx3-STEREOPRO LOGICDIGITAL COAX OPT 12 ANALOG NIGHT MULTI MEMORY A B C D EG N O K M L XWTUS RQPV FHI J A Coax Source B Digital Source Input Number C Optical Source D Analog Source Indicator E PCM Indicator F Dolby Digital Indicator G Analog Dolby Surround Mode Indicators H VMAx Mode Indicator I Theater Mode Indicator J Logic 7 Mode Indicators K DTS Mode Indicator L Surround Off M Multiroom System Indicator N Night Mode Indicator O Preset Number P Preset Indicator Q Memory R Auto S Mono Indicator T Stereo Indicator U Tuned Indicator V Main Information Display W Sleep Indicator X Mute A Coax Source: This indicator illuminates when a digital source is in use via a connection to the Coaxial Digital inputs e. B Digital Source Input Number: These indicators tell you which of the two digital inputs is selected.This indicator works in cojunc- tion with the Coax Source A and Optical Source C indicators to show which form of digital signal is in use. C Optical Source: This indicator illuminates when a digital source is in use via a connection to the Optical Digital input d. D Analog Source Indictor: This indicator illuminates when an analog input source is in use. E PCM Indicator:This indicator illuminates to show that a standard PCM (S/P-DIF) digital audio signal is being decoded by the digital-to- analog converter. F Dolby Digital Indicator: This indicator illuminates when a Dolby Digital source is being played. G Analog Dolby Surround Mode Indicators: These indicators illuminate when one of the analog (matrix) Dolby Surround modes is in use. H VMAx Mode Indicator:This indicator illu- minates to show that the VMAx mode is in use. ITheater Mode Indicator:This indicator illu- minates to show that the Theater mode is in use. J Logic 7 Mode Indicators: These indica- tors illuminate when the Logic 7 mode is in use. LOGIC 7C appears for the Cinema ver- sion of Logic 7, LOGIC 7M appears for the Music version of Logic 7. K DTS Mode Indicator:This indicator illumi- nates when a DTS-encoded source is playing. L Surround Off: This indicator illuminates when the surround processing has been dis- abled by pressing the Surround Off button .When this indicator is lit, the AVR 500 will play traditional stereo sound using the front-left and front-right speakers only. M Multiroom System Indicator:This indica- tor illuminates when the multiroom system is in operation. (See page 26 for more information on the multiroom system.) N Night Mode Indicator: This indicator lights when the AVR 500 is in the Night mode, which preserves the dynamic range of digital program material at low volume levels. O Preset Number: This two-digit display indicates the station preset number that is currently in use, or that is being entered. P Preset Indicator:This indicator illuminates when a station previously entered into the preset memory is tuned.The number that appears below the indicator is the preset stations memory. Q Memory: This indicator flashes when entering presets and other information into the tuners memory. R Auto: This indicator illuminates when the Auto mode is in use for FM tuning. S Mono Indicator:This indicator illuminates when the tuner has been placed in the monaural mode by pressing the Tune Mode button *. Set the tuner for mono listening to reduce noise and improve the quality of distant stereo signals. T Stereo Indicator:This indicator illuminates when an FM station is being tuned in stereo. UTuned Indicator:This indicator illuminates when a station is being received with sufficient sig- nal strength to provide acceptable listening quality. V Main Information Display: This display shows messages relating to the status, input source, surround mode, tuner, volume level or other aspects of units operation. W Sleep Indicator: This indicator is illumi- nated when the Sleep function is in use.The number that appears above the indicator is the number of minutes remaining before the AVR 500 will return to the Standby mode. X Mute: This indicator illuminates to remind you that the AVR 500s output has been silenced by pressing the Mute button f. Press the Mute button again to return to the previously selected output level. RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 SERVICE PROCEDURE TEST EQUIPMENT REQUIRED 1) AM/FM Signal generator 2) Digital Multimeter 3) Distortion lever meter 2. VFD segment illumination CENTER MAIN: VR401, VR402, VR501 SURROUND : VR601, VR602 2) NO signal / NO LOAD 3) AC LINE VOLTAGE : 120V/60Hz, 230V/50Hz (2) After turning on the unit, keep it over than 5MIN. (Keep the Power/Drive TR as normal temperature) (3) Adjust the voltage value of primary CENTER MAIN: VR403, VR404, VR502 SURROUND : VR603, VR604 2) NO signal / NO LOAD 3) AC LINE VOLTAGE : 120V/60Hz, 230V/50Hz (2) After turning on the unit, keep it over than 5MIN. (Keep the Power/Drive TR as normal temperature) (3) Adjust the voltage value of primary Figure 1. Remove the two metal braces at the top of the unit. If necessary, cut the cable ties attached to the braces to move any wires away from the area. 3) Pull the white 22 conductor ribbon cable at the rear of the DSP PC Board straight out of its receptacle. 4) Unplug the white 5 conductor molex cable at the top of the DSP PC Board. 5) Remove the (33) plated Phillips screws on the left side of the rear backplate; see Figure 2. Do not remove any additional screws on the right side. If using a power tool, use care and minimum effort to avoid damaging the various plastic receptacles. 6) Remove all three black plastic plugs that cover the optical inputs at the rear of the DSP PC Board. 7) Pull on the left side of the rear backplate, away from the receiver chassis; you should be able to pull it away enough to allow the DSP PC Board to be pulled straight up and out of the receiver. 8) Proceed with the modifications on page 2. ModelSerial Number 120V Serial Number 230V RDS STATUSACTION AVR300 AVR500 TH0001-01000 To TH0001-13886 TH0002-01000 To TH0002-10460 TH0005-01000 To TH0005-03317 TH0006-01000 To TH0006-02795 Random Noise, Erratic Output or Gaps in Program Material when in DTS Mode Modifications to DSP Board: Add ground wire; Change R756 confirm the complaint of Random Noise or Erratic Output is no longer occurring. RadioFans.CN 收音机爱 好者资料库 19 harman/kardon Service Bulletin Service bulletin # H/K2000-04 Rev1 February 2003 Warranty labor rate: AVR500 MAJOR repair To: All harman/kardon Service Centers AVR7000 MINOR repair Models: AVR500/AVR7000 Subject: Noise in Logic 7 Mode In the event you receive an AVR500 or AVR7000 receiver with the complaint “There is crackling, noise, or distortion coming from my loudspeakers when my receiver is in the Logic 7 mode with certain program material playing”, perform the following procedure: AVR500 ONLY: REMOVAL AND MODIFICATION OF THE DSP BOARD (replace IC709 TRAD ROM-0001) WARNING: FOLLOW PROPER STATIC CONTROL PROCEDURES and use caution during the removal of the DSP board, and during installation of new IC709 to prevent damage. 1) Remove the top cover, (14) Black Phillips screws at the sides and rear of the unit. 2) Locate the DSP PC Board; Figure 1. Remove the two metal braces at the top of the unit. If necessary, cut the cable ties attached to the braces to move any wires away from the area. 3) Pull the white 22 conductor ribbon cable at the rear of the DSP PC Board straight out of its receptacle. 4) Unplug the white 5 conductor molex cable at the top of the DSP PC Board. 5) Remove the (33) plated Phillips screws on the left side of the rear backplate; see Figure 2. Do not remove any additional screws on the right side. If using a power tool, use care and minimum effort to avoid damaging the various plastic receptacles. 6) Remove all three black plastic plugs that cover the optical inputs at the rear of the DSP PC Board. 7) Pull on the left side of the rear backplate, away from the receiver chassis; you should be able to pull it away enough to allow the DSP PC Board to be pulled straight up and out of the receiver. 8) Unsolder IC709 TRAD ROM-0001 and replace with hk part# J21310030011. See illustration on following page for location on PCB. Model Serial Number 120V Serial Number 230V RDS STATUS ACTION AVR500 TH0002-01000 To TH0002-14977 TH0006-01000 To TH0006-05105 Noise in Logic 7 Mode Replace IC709 TRAD ROM-0001 AVR500 TH0002-14978 or higher TH0006-05106 or higher Modified by factory NONE REQUIRED RadioFans.CN 收音机爱 好者资料库 20 Location of IC upgrade for the AVR500/AVR7000: 9) Replace DSP PC Board back into its (3) receptacle plugs atop the MAIN PCB. 10) Replace all screws, braces, and any cable ties that were cut during disassembly. Before tightening the screws, make sure all PCBs and their RCA jacks are firmly seated in their respective holes in the rear backplate. If using a power tool, use care and minimum effort to avoid damaging the various plastic receptacles. 11) Plug both the 22 conductor ribbon cable and the 5 conductor molex cable back into their receptacles. 12) Replace the top cover and optical