HarmanKardon-AVR7000-avr-sm维修电路原理图.pdf

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1、harman/kardon AVR7000A/V DOLBY DIGITAL RECEIVERPRELIMINARYSERVICE MANUALCONTENTSESD WARNING.2LEAKAGE TESTING.3BASIC SPECIFICATIONS.4DETAILED SPECIFICATIONS.5FRONT PANEL CONTROLS.13REAR PANEL CONNECTIONS.15REMOTE CONTROL FUNCTIONS.17SERVICE BULLETINS/TECH TIPS.20IDLE CURRENT ADJUST.23TUNER ALIGNMENT.

2、24TROUBLESHOOTING GUIDE.27UNIT EXPLODED VIEW.28EXPLODED VIEW.29BLOCK DIAGRAM30PCB DRAWINGS.31MECHANICAL PARTS LIST47ELECTRICAL PARTS LIST.67SCHEMATICS.70WIRING DIAGRAM.94PACKAGE.95harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797Rev1 11/2000RadioFans.CN 收音机爱 好者资料库Eachprecautioninth

3、ismanualshouldbefollowedduringservicing.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 des

4、ignated 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 electr

5、icity. 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 cause

6、d 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

7、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

8、 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 electri

9、cal 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 cond

10、uctive 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 safe

11、ty 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 :Radi

12、oFans.CN 收音机爱 好者资料库21. 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,adjustmentandcompartmen

13、t 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 leakagecurrentusingSimpsonModel

14、229LeakageTester,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,inse

15、rieswithallexposedmetalcabinetpartsandaknownearthground,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 th

16、e chassis (antenna, metal,cabinet,screwheads,knobsandcontrolshafts,escutcheon,etc.)andmeasuretheACvoltagedropacrosstheresistor.(Thistestshouldbeperformedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningtheunittotheowner.3TECHNICAL SPECIFICATIONST

17、echnical SpecificationsAudio SectionStereo Mode Continuous Average Power (FTC)110 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohmsFive-Channel Surround Modes Power Per Individual ChannelFront L&R channels:100 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:

18、100 Watts, 0.07% THD, 20Hz20kHz into 8 ohmsSurround channels:100 Watts per channel, 1004HICCY6 CH DIRECT10 KHz10 KHz single cycle sine impulse. 1 impulse/sec. Using 0.1 ohm, 1%, 250 W, non inductive loadA60655RESIDUAL NOISE YShould be met by all Stereo Inputs1kHzVOL at min. 10Hz-22KHz BW, peak detec

19、tor, all inputs terminated w/ 1 KohmmVpk1.2mV1.0mVYShould be met by all Stereo Inputs1kHzVOL at max. 10Hz-22KHz BW, peak detector, all inputs terminated w/ 1 KohmmVpk3mVrms1.5mVrmsYShould be met by all Stereo Inputs1kHzVOL at max. 10Hz-22KHz BW, RMS , non-weighted, all inputs terminated w/ 1 KohmmVr

20、ms1mVrms0.75mVrmsYShould be met by all Stereo Inputs1kHzVOL at max. 10Hz-22KHz BW, RMS , A Weighted, all inputs terminated w/ 1 KohmmVrms0.7mVrms0.5mVrmsYShould be met by all Stereo Inputs1kHzVOL at max. 10Hz-22KHz BW, RMS , A Weighted, all inputs left un-terminated mVrms0.7mVrms0.5mVrmsRESIDUAL NOI

21、SE Y6 CH DIRECT1kHzVOL at min. 10Hz-22KHz BW, peak detector, all inputs terminated w/ 1 KohmmVpk1.2mVrms1.0mVrmsY6 CH DIRECT1kHzVOL at max. 10Hz-22KHz BW, peak detector, all inputs terminated w/ 1 KohmmVpk3mVrms1.5mVrmsY6 CH DIRECT1kHzVOL at max. 10Hz-22KHz BW, RMS, non-weighted, all inputs terminat

22、ed w/ 1 KohmmVrms1mVrms0.75mVrmsY6 CH DIRECT1kHzVOL at max. 10Hz-22KHz BW, RMS, A Weighted, all inputs terminated w/ 1 KohmmVrms0.7mVrms0.5mVrmsY6 CH DIRECT1kHzVOL at max. 10Hz-22KHz BW, RMS, A Weighted, all inputs left un-terminated mVrms0.7mVrms0.5mVrms6TOTAL HARMONIC DISTORTIONYShould be met by a

23、ll Stereo Inputs20Hz-20 KHz, Power out =Rated Power - 1 dBVol at Max, 10 Hz-80KHz Meas BW.%0.080.05TOTAL HARMONIC DISTORTIONY6 CH DIRECT20Hz-20 KHz, Power out =Rated Power - 1 dBVol at Max, 10 Hz-80KHz Meas BW.%0.080.05TOTAL HARMONIC DISTORTIONYShould be met by all Stereo Inputs20Hz-10 KHz, Power ou

24、t =1 WVol at Max, 10 Hz-22 KHz Meas BW.%0.080.05TOTAL HARMONIC DISTORTIONY6 CH DIRECT20Hz-10 KHz, Power out =1 WVol at Max, 10 Hz-22 KHz Meas BW.%0.08110115YCD1kHzat 0.1% THD, 10 Hz-80 KHz measurement BW. Volume at Max.W1101155YCD20 KHzat 0.1% THD, 10 Hz-80 KHz measurement BW.Volume at Max.W110115CO

25、NTINUOUS AVERAGE POWER: B) All 5 Channels Driven, 8 ohmsY6 CH DIRECT20 Hzat 0.1% THD, 10 Hz-80 KHz measurement BW.Volume at Max.W100105Y6 CH DIRECT1kHzat 0.1% THD, 10 Hz-80 KHz measurement BW.Volume at Max.W100105Y6 CH DIRECT20 KHzat 0.1% THD, 10 Hz-80 KHz measurement BW.Volume at Max.W1001058IMD(SM

26、PTE)Y6 CH DIRECTSine wave # 1 f =60Hz. Ampl=4, sine wave # 2 f= 7 KHz. Ampl=130 step Sweep of Gen to Drive to Pk-Pk value of sine rated power% 0.15 0.099DIMY6 CH DIRECTSquare wave f =3.15KHz. Ampl=4, sine f=15 KHz. Ampl=130 step Sweep of Gen to Drive to Pk-Pk value of sine rated power% 0.159295YAll

27、Stereo Inputs1kHzReferred to 1W Out. Vol at max, all inputs terminated w/ 1 Kohm.dB7275YAll Stereo Inputs1kHzReferred to Rated Output Power, Vol at max, all inputs left un-terminateddB9295Y6 CH DIRECT1kHzReferred to Rated Output Power, Vol at max, all inputs terminated w/ 1 Kohm.dB9295Y6 CH DIRECT1k

28、HzReferred to Rated Output Power, Vol at max, all inputs left un-terminated.dB9295Y6 CH DIRECT1kHzReferred to 1W Out. Vol at max, all inputs terminated w/ 1 Kohm.dB747711CHANNEL SEPARATION: Zterm = 1KW/1000pF YCD100HzVol at Max, Gen amplitude adjusted to obtain R/O-3dB, measured w/ APs Xtalk mode. D

29、riving every channel individually. Undriven channels should be terminated w/ 1 kOhm.dB6570Y1kHzVol at Max, Gen amplitude adjusted to obtain R/O-3dB, measured w/ APs Xtalk mode. Driving every channel individually. Undriven channels should be terminated w/ 1 kOhm.dB6570Y10kHzVol at Max, Gen amplitude

30、adjusted to obtain R/O-3dB, , measured w/ APs Xtalk mode. Driving every channel individually. Undriven channels should be terminated w/ 1 kOhm.dB5565CHANNEL SEPARATION: Zterm = 1KW/1000pF Y6 CH DIRECT100HzVol at Max, Gen amplitude adjusted to obtain R/O-3dB, measured w/ APs Xtalk mode. Driving every

31、 channel individually. Undriven channels should be terminated w/ 1 kOhm.dB6570Y1kHzVol at Max, R/O-3dB, measured w/ APs Xtalk mode. Driving every channel individually. Undriven channels should be terminated w/ 1 kOhm.dB6570Y10kHzVol at Max, Gen amplitude adjusted to obtain R/O-3dB, , measured w/ APs

32、 Xtalk mode. Driving every channel individually. Undriven channels should be terminated w/ 1 kOhm.dB556512FUNCTION CROSSTALK, (Measured on all Channels)YAll Analog Stereo and 6 CH DIRECT Inputs1 kHzVolume at Max. Apply Sinewave Signal Gen amplitude to the tested input, to obtain R/O-3dB at the speak

33、er outputs. Record the output level as the reference output. Then, scroll thru the other possible stereo inputs, and measure the output level. Compute tdB70756YAll Analog Stereo and 6 CH DIRECT Inputs10 kHzVolume at Max. Apply Sinewave Signal Gen amplitude to the tested input, to obtain R/O-3dB at t

34、he speaker outputs. Record the FL and FR speaker output level as the reference output. Scroll thru other stereo inputs, and measure the output level. Compute thdB 5575YAM/FM Tuner Input1 KHzApply an FM Stereo RF input thru a 50-75 ohm dummy antenna (98 MHz carrier, 75 KHz modulation, 1 KHz tone, 72

35、dBuV level). Then set UUT to FM Stereo , 98 MHz. Set Volume control to 10 dB below Max. Record the FL and FR speaker output level as the refereFull scale Digital InputTBD19FTC POWER 20Hz20kHz, 0.08 % THD, 8 ohm loadYCD20 Hz-20 KHz1 hour preconditioning by driving all channels to 1/3 rated power. 25

36、oC. 10 Hz-80KHz Meas BW. ACV=117VRMS, 60 HzW10010521DYNAMIC POWER OUTPUT YCD1kHz20 cycle burst- 480 msec off. Sweep ampl to reach clipping point.W130 13522FREQUENCY RESPONSE (-3dB)YAll Analog Stereo and 6 CH DIRECT Inputs Ref to 1W, 1KHzHz10 Hz-100 KHz5 Hz-150 KHz23POWER BANDWIDTH -3dBYCDTHD 0.08%Hz

37、kHz20-60Khz24SLEW RATE YCD20 KHz Square WaveDrive unit to 40 Vpp. Mesure delta amplitude and delta time. Compute V/usecV/usec121325SLEW-FACTOR Y6 CH DIRECT/ALL STEREO INPUTS1 KHz referenceVolume at Max. Drive channel to R/O. Then sweep frequency until finding 1 % THD+N reading. Record frequency. Rat

38、io of freq 1 % THD+N / 20 KHz is the Slew Factor55.526INPUT IMPEDANCEY6 CH DIRECT/ALL STEREO INPUTS1kHzkohm47 Kohm27HEADPHONE OUTPUT YCD1kHz Volume at MaxmV1.2 +/- 0.41.2 +/- 0.2 H/P = 32ohms(200)mV1kHzmV?VIDEO SECTIONNODESCRIPTIONINPUTFREQ.REMARKUNITLIMIT NOMINAL VIDEO1OUTPUT LEVEL at 75ohmsVCR1(1V

39、p-p)1MHzVp-p1?.201?.102FREQUENCY RESPONSE(-3dB)VCR1(1Vp-p)HzMHzDC6DC6,33S/N RATIOVCR1(1Vp-p)1MHzdB40454CROSSTALK VCR1(1Vp-p)1MHzdB4045S-VIDEO1OUTPUT LEVEL at 75ohmsY LEVELVCR1(1Vp-p)1MHzVp-p1 +/- 20mV1 +/- 10mVC LEVELVCR1(0.286Vp-p)1MHz0.286 +/- 5mV0.286 +/- 3mV2FREQUENCY RESPONSE (-3dB)VCR1(1Vp-p)H

40、zMHz5Hz6.3MhzDC-10Mhz73S/N RATIOVCR1(1Vp-p)1MHzdB4045COMPONENT VIDEO1OUTPUT LEVEL at 75ohmsY LEVEL(GREEN)VCR1(1Vp-p)1 +/- 20mV1 +/- 10mVCb LEVE(BLUE)VCR1(0.678Vp-p)Vp-p0.678+/-10mV0.678+/-5mVCr LEVE(RED)VCR1(0.678Vp-p)0.678+/-10mV0.678+/-5mV8TUNER SectionTUNER SECTIONMeasuring methods in confirmity

41、with IEC standard 315Measurements condition FM : Radio frequency = 98.1MHz, Audio frequency = 1kHz Reference level = 1mV on ( 75ohms , 300ohms ) Deviation : MONO = ?5kHz, Stereo = ?7.5kHz?.5kHz MONO = ?0kHz, Stereo = ?0kHz?.5kHz Test Point : TP 1 = 90.1MHz, TP 2 = 98.1MHz, TP 3 = 106.1MHz Filter = B

42、.P.F at STEREOFM SECTIONNODESCRIPTIONUNITLIMIT L/RNOMINAL L/RMEAS.NEEDED* 1TUNING RANGE LOW HIGHMHz87.5107.9MSTEP AUTO/Man.kHz100*2USABLE SENSITIVITY TP 1dBf 17.2 14.2 S/N = (26,30)dBTP 2dBf 17.2 14.2TP 3dBf 17.2 14.23FULL LIMITING SENSEOUTPUT = -3dBdBf 15.2 12.2*4AUTO STOP LEVEL dBf33.2 +/- 633.2 +

43、/- 5*5AUTO SCAN ERROR kHz+/- 15/20+/- 20/25*6S/N RATIO MONOdB 65 70 IHF-A FILTERSTEREOdB 63 68*7TOTAL HARMONIC DISTORTIONMONO% 0.5 0.3STEREO % 0.8 0.58 (50,46)dB QUIETING SENS.MONOdBf 23.2 20.2STEREOdBf 48.3 45.3*9CHANNEL SEPARATION 100HzdB 35 401kHzdB 40 4510kHzdB 30 3510FREQUENCY RESPONSE AT ?1,-3

44、dBHz2015K1015.3K11SPURIOUS RESPONSEdB 80 9012IF REJECTIONTP 1dB 70 8013IMAGE REJECTIONTP 3dB 65 7014AM REJECTION RATIOdB 50 5515RF INTERMODULATIONdB16CAPTURE RATIO dB 25. 217ALTERNATIVE CH SELECTIVITY?(400)kHzdB 65 70*19OUPUT LEVEL MONOmV500 +/- 150500 +/- 100 AM SECTIONMeasuring methods in confirmi

45、ty with IEC standard 315Measurements condition AM - MW : Radio frequency = 1000/999kHz, Audio frequency = 400Hz LW : Radio frequency = 207kHz, Audio frequency = 400Hz Reference level = 5mV/m,10mV/m on 50ohms Modulation = 30% Test Point : MW TP1 = (600)kHzTP2 = (1000)kHzTP3 = (1400)kHz LW TP1 = 162kH

46、z, TP2 = 207kHz, TP3 = 252kHzNODESCRIPTIONUNIT LIMIT L/RNOMINAL L/R* 1TUNING COVER RANGELOW HIGH MWkHz5201710 LWkHzSTEPAUTO/Man.kHz10* 2USABLE SENSITIVITY MW TP 1uV/m 800 500 TP 2uV/m 800 500 S/N = 20dB TP 3uV/m 800 500LW TP 1uV/m TP 2uV/m TP 3uV/m9TUNER Section3S/N RATIO MWdB 40 45INPUT=10mV/mLWdB4

47、TOTAL HARMONIC DISTORTION % 1.5 0.85OVER LOAD DISTORTION 5mV 80% MOD% 10 56FREQUENCY RESPONSE at -6dBMWHz1002K802.3KLWHz7SELECTIVITY 10kHz/9kHzMWdB 20 25LWdB8AGC FIGURE OF MERIT INPUT 100mVdB 50 559IMAGE REJECTION MW = TP 3dB 30 35LW = TP 3dB10 WHISTLE MODULATION2IF% 15 10 INPUT = 1mV/m 3IF% 15 1011

48、 AUTO STOP LEVELMWuV/m800 (+/- 6dB)800 (+/- 5dB)LWuV/m* 12 TUNED LEVEL MWuV/m800 (+/- 6dB)800 (+/- 5dB)LW uV/m* 13 OUTPUT LEVEL mV120 +/- 40120 +/- 3010DIGITAL(AC3) SectionAC-3 SECTIONMeasurements conditions,unless otherwise noted : Input Function : DVD Digital Input Mode : OPTICAL1 Speker Mode : Fr

49、ont/Center/Surround:LARGE, Sub-Woofer:YES Main Vol Position : 1 Vrms Output Position Trim Vol Position : All 0 dB Test Point : Pre-Out Test disc : DOLBY TEST DVD VERSION 1.0 Center, Rear delay : 0 msMEASUREMENTNODESCRIPTIONSIGNALINPUTCHAPTERUNITLIMITNOMINALLCRLSRSSW*1Output Level1kHz0dB65/6/7/8/9V1.

50、09 +/- 0.31.0 +/- 0.2 Main Vol Level : 60Position30Hz0dB70V3.3 +/- 0.53.3 +/- 0.3*2Output Level1kHz0dB65/6/7/8/9mV 0.2 0.15 at MIN.VOL.30Hz0dB70mV 0.2 0.15*3S/N RatioPRE-OUT : 100mV AWeighted1kHz-20dB33,34,35dB 60 65 PRE-OUT : 1V Unweighted30Hz0dB32dB 60 65*4T.H.D PRE-OUT : 100mV 1kHz -20dB6% 0.5 0.