HarmanKardon-AVR7200-avr-sm维修电路原理图.pdf

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1、 harman/kardon AVR7200 AVR7200 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 FRONT PANEL CONTROLS.5 INFORMATION DISPLAY.7 REAR PANEL CONNECTIONS.8 REMOTE CONTROL FUNCTIONS.11 INSTALLATION/CONNECTIONS.14 TROUBLESHOOTING GUIDE.17 PROCESSOR RE

2、SET.17 UNIT EXPLODED VIEW.18 EXPLODED VIEW PARTS LIST.19 BLOCK DIAGRAM.22 DC OFFSET/IDLE CURRENT ADJ.23 BULLETIN HK2003-04.24 TECH TIP HKTT2003-01.25 ELECTRICAL PARTS LIST.26 PCB DRAWINGS.74 SEMICONDUCTOR PINOUTS.99 SCHEMATICS.158 WIRING DIAGRAM.183 PACKAGING PARTS LIST.184 harman/kardon, Inc. 250 C

3、rossways Park Dr. Woodbury, New York 11797 Rev1 7/2005 www.freeservicemanuals.info RadioFans.CN Eachprecautioninthismanualshouldbefollowedduringservicing. Components identified with the IEC symbolin the parts list are special significance to safety. When replacing a component identified with , use o

4、nly 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 befor

5、e 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 sem

6、iconductor 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 touchin

7、g 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

8、 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 c

9、an 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. (M

10、ost 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 cir

11、cuit 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

12、 fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices. CAUTION : AVR7200 AVR7200 harman/kardon www.freeservicemanuals.info RadioFans.CN 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not

13、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 fo

14、r 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 asfollo

15、ws : 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

16、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, cabinet,screwheads,knobsandcontrolshafts,escutcheon,etc.)andmeasur

17、etheACvoltagedropacrosstheresistor.(Thistestshouldbe performedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningthe unittotheowner. AVR7200 AVR7200 harman/kardon www.freeservicemanuals.info RadioFans.CN TECHNICAL SPECIFICATIONS 4 AVR 7200 TECHNICA

18、L SPECIFICATIONS Audio Section Stereo Mode Continuous Average Power (FTC) 115 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms Seven-Channel Surround Modes Power per Individual Channel Front L 5,638,074; 5,640,161; 5,808,574; 5,838,274; 5,854,600; 5,864,311; 5,872,531; and i

19、n Australia: 669114. Other patents pending. A-BUS and A-BUS Ready are registered trademarks of Leisure Tech Electronics Pty Ltd Australia. TM AVR 7200 OM 1/27/03 4:47 PM Page 49 AVR7200 AVR7200 harman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info FRONT-PANEL CONTROLS 1 Main

20、Power Switch: Press this button to apply power to the AVR 7200. When the switch is pressed in, the unit is placed in a Standby mode, as indicated by the amber Power Indicator 3 surrounding the System Power Control 2. This button MUST be pressed in to operate the unit. To turn the unit off and preven

21、t the use of the remote control, this switch should be pressed until it pops out from the front panel so that the word “OFF” may be read at the top of the switch. NOTE: This switch is normally left in the “ON” position. 2 System Power Control: When the Main Power Switch 1 is “ON,” press this button

22、to turn on the AVR 7200; press it again to turn the unit off. Note that the Power Indicator 3 surrounding the switch will turn green when the unit is on. 3 Power Indicator: This LED will be lit in amber when the unit is in the Standby mode to signal that the unit is ready to be turned on.When the un

23、it is in oper- ation, the indicator will turn green. 4 Headphone Jack: This jack may be used to listen to the AVR 7200s output through a pair of headphones. Be certain that the headphones have a standard 1/4 stereo phone plug.The main room speakers will automatically be turned off when the headphone

24、 jack is in use. 5 Tone Mode: This button allows you to remove the tone controls (Treble, Bass and Balance) from the signal path.The first press of the button displays a TONE IN message in the Main Information Display . If you wish to set the tone controls to “flat,” without any treble or bass alter

25、ation, press the orSelector Buttons )# so that TONE OUT appears in the Lower Display Line B. 6 Speaker Selector: Press this button to begin the process of configuring the AVR 7200 for the type of speakers it is being used with. For complete informa- tion on configuring the speaker settings, see page

26、 21. 7 Surround Mode Group Selector: Press this but- ton to select the top-level group of surround modes. Each press of the button will select a major mode grouping in the following order: Once the button is pressed so that the name of the desired surround mode group appears in the on-screen display

27、 and in the Lower Display Line B, press the Surround Mode Selector 8 to cycle through the individual modes available. For example, press this but- ton to select Dolby modes, and then press the Surround Mode Selector 8 to choose from the var- ious mode options. 1 Main Power Switch 2 System Power Cont

28、rol 3 Power Indicator 4 Headphone Jack 5 Tone Mode 6 Speaker Selector 7 Surround Mode Group Selector 8 Surround Mode Selector 9 Tuning Selector )Button ! Tuner Band Selector Set Button #Button $ Preset Station Selector % Input Source Selector Tuner Mode Selector otherwise connect it to theVideo 2 Co

29、nnectors .The audio outputs of your TV should be connected to the Video 2 Inputs , and the outputs of a cable box or satellite receiver to the Video 3 Inputs . Note that the AVR 7200 will not convert signals from composite to S-Video,or vice versa.S-Video inputs may only be viewed when the AVR 7200

30、is connected to a TV set or video display with S-Video capability.If you use both standard composite video and S-Video sources in your system,it is important that you connect both an S-Video cable and a standard composite video cable (a coax cable with an RCA plug on both ends) between the AVR 7200

31、and your TV or projector.Consult the instructions for your TV set or projector for more infor- mation on connecting both types of signals. 1. Connect a VCRs or other video sources audio and video Play/Out jacks to the Video 1/Video 2 Input Jacks on the rear panel.The Audio and Video Record/In jacks

32、on the VCR should be con- nected to the Video 1/Video 2 Output Jacks on the AVR 7200. 2. Connect the analog audio and video outputs of a satellite receiver, cable TV converter or television set or any other video source to the Video 3 Input Jacks . 33 33 34 32 31 AVR 7200 OM 1/27/03 4:46 PM Page 15

33、AVR7200 AVR7200 harman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info 15 INSTALLATION AND CONNECTIONS INSTALLATION AND CONNECTIONS 3. Connect the analog audio and video outputs of a DVD or laser disc player to the DVD Inputs. 4. Connect the digital audio outputs of a DVD play

34、er, satellite receiver, cable box or HDTV converter to the appropriate Optical or Coaxial Digital Inputs j Amplifier is in protection mode Check speaker wire connections for shorts at receiver and light around power switch is reddue to possible shortspeaker ends Amplifier is in protection mode Conta

35、ct your local Harman Kardon service center due to internal problems No sound from surround or Incorrect surround mode Select a mode other than Stereo center speakers Input is monaural There is no surround information from mono sources Incorrect configuration Check speaker mode configuration Stereo o

36、r Mono program material The surround decoder may not create center- or rear-channel information from nonencoded programs Unit does not respond to Weak batteries in remote Change remote batteries remote commands Wrong device selected Press the AVR selector Remote sensor is obscured Make certain front

37、 panel sensor is visible to remote or connect remote sensor Intermittent buzzing in tuner Local interference Move unit or antenna away from computers, fluorescent lights, motors or other electrical appliances Letters flash in the channel indicator Digital audio feed paused Resume play for DVD displa

38、y and digital audio stops Check that Digital Input is selected 32 Processor Reset In the rare case where the units operation or the dis- plays seem abnormal, the cause may involve the erratic operation of the systems memory or microprocessor. To correct this problem, first unplug the unit from the A

39、C wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a sys- tem reset may clear the problem. To clear the AVR 7200s entire system memory including tuner presets, output level settings, delay times

40、 and speaker configuration data, first put the unit in Standby by pressing the System Power Control Button 2. Next, press and hold the Surround Mode Group Selector 7 and the Tuner Mode Selector buttons for three seconds. The unit will turn on automatically and display the RESET message in the Main I

41、nformation Display . NOTE: Resetting the processor will erase any configu- ration settings you have made for speakers, output levels, surround modes, digital input assignments as well as the tuner presets.After a reset the unit will be returned to the factory presets, and all settings for these item

42、s must be reentered. If the system is still operating incorrectly, there may have been an electronic discharge or severe AC line interference that has corrupted the memory or microprocessor. If these steps do not solve the problem, consult an authorized Harman Kardon service center. TROUBLESHOOTING

43、GUIDE 17 TROUBLESHOOTING GUIDE AVR 7200 OM 1/27/03 4:47 PM Page 48 AVR7200 AVR7200 harman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info AVR7200 AVR7200 harman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info AVR7200 EXPLODED VIEW PART LIST Ref#Part#QtyD

44、escription 1552306601PCAC PUN COVER TOP AVR8000 METAL - 2552312901PCSWIPUSH POWER SWITCH J46208000004 8.0A 250.0V 100MI0OHM 1T 2P 3552305101PCAC PUN BRACKET SW POWER AVR8000 - 4552303401PCAC MLD HOLDER GUIDE POWER SW AVR800 5551778101PCAC DEC BUTTON POWER HIPS DVD10 - 6551452701PCSWITACT VERTICAL TA

45、CTILE F/B 50MI0A 12.0V 500MI0OHM 1T 1P 7551780201PCAC MLD BUTTON INDICATOR STAND-BY AVR520 - 8551778201PCAC DEC BUTTON STANDBY - 9552302801PCAC DEC ENDCAP LEFT HIPS AVR8000 10 551778001PCAC DEC CRYSTAL FILTER DISPLAY 11 551779902PCAC DIFFUSER 0.2T 59.6*41 WH NON-METAL 12 552731601PCAC DEC GUIDE BUTT

46、ON 5KEY - 13 555772201PCAC DEC CRYSTAL WINDOW DISPLAY AVR7200 14 551786201PCAC PRI LABEL PLEASE AVR520 15 555771601PCAC CPL CABINET AL PANEL AVR7200 16 552304701PCAC DEC KNOB MAIN HIPS AVR8000 17 551777503PCAC DEC KNOB TONE HIPS 18 555979502PCAC PUN PLATE SPACE AVR7500 19 552622001PCAC DEC CABINET P

47、ANEL FRONT AVR7500 20 552303201PCAC DEC ENDCAP RIGHT HIPS AVR8000 21 551780302PCAC MLD BUTTON INDICATOR VIDEO 4 AVR520 - 22 551254301PCD-LEM TORX178B RD RND CL 23 551759501PCCON PHONO SCKT RCA 1P W/GND JE010003MN 24 551825501PCAC PUN SHIELD DIGITAL ET 25 551243501PCAC PUN BRACKET HEADPHONE RT2280/RT

48、2250(PAV5007/5005) - 26 550506901PCCONN-PHJAC 6.35 ST HORZ CKX3-6.35-04 BK 0 0 27 554987801PCAC DEC BUTTON 7 KEY AVR7200/8200 - 28 555773601PCAC DEC BUTTON 3 KEY SET AVR7200 - 29 555773801PCAC DEC BUTTON 5 KEY SET AVR7200/8200 - 30 551427801PCDISPLAY HNA-15LL01 31 551799202PCPR-ROT 100K0 OHM NON-LIN

49、EAR RK14K12400BR 0 0 32 551139601PCCON DIN SCKT SOCKET CONNECTOR SVHS EST-S408J 33 551715101PCCON PHONO SCKT RCA-313P 3 PINS 34 551789601PCAC SPRING PLATE SPRING GND C5212 0.2T AVR520 35 551799101PCPR-ROT 100K0 OHM NON-LINEAR RK14K12400BQ 0 0 36 551775701PCAC PUN SHIELD FENCE TONE 37 551349001PCSWIROT EC16B24204A5 5V 500U0A 10T 3P 0 0 3