HarmanKardon-AVR134-avr-sm维修电路原理图.pdf
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1、RadioFans.CN 收音机爱 好者资料库SAFETY PRECAUTIONSWARNINGBefore servicing this unit, familiarize yourself with the following precautions:1. Many electrical and mechanical parts in thischassis have special safety characteristics thatoften pass unnoticed and the protectionafforded by them cannot necessarily be
2、obtained by using replacement componentsrated for higher voltage, wattage, etc.Replacement parts that have these specialsafety characteristics are identified in thismanual and its supplements: electricalcomponents having such features are identifiedby in the schematic diagram and the partslist.Befor
3、e replacing any of these components, readthe parts list in this manual carefully. The use ofsubstitute replacement parts that do not havethe same safety characteristics as specified inthe parts list may create shock, fire, or otherhazards.2. Before returning the set to the customer,always do an AC l
4、eakage current check on theexposed metal parts of the cabinet, such asterminals, screw heads, and metal overlays, tobe sure the set is safe to operate danger ofelectrical shock. Plug the AC line cord directlyinto a 120 V AC outlet(USA Version) or 230 VAC outlet(EU Version). (Do not use a lineisolati
5、on transformer during this check.) Besure your AC voltmeter has a sensitivity of5000 per volt or greater. Then connect a1500 10 watt resistor, paralleled by a 0.15F 150 V AC capacitor, between a known goodearth ground(such as a water pipe, or conduit)and the exposed metallic parts, one at a time.Mea
6、sure the AC voltage across the combinationof a 1500 resistor and a 0.15 F capacitor.Reverse the AC plug at the AC outlet andrepeat AC voltage measurements for eachexposed metalic part. Voltage measured mustnot exceed 0.75 V RMS. This corresponds to0.2 mA AC. Any value exceeding this limitconstitutes
7、 a potential shock hazard and mustbe corrected immediately.2RadioFans.CN 收音机爱 好者资料库Measuring methods are based on IHF and IEC standard 268-3Measurements conditions,unless otherwise noted : Output resistive load = (6) ohms / Both channel driven Tone Direct ON , Other SWs : OFFPower figures should be
8、kept minimum 10min. between 15 and 35cFilter : IHF-A filter,R/O = Rated OutputPower supply : 240 V / 50 Hz 1. FRONT AMP SECTION*SPKR LEVEL : ALL 0dB *SPK SIZE:LLLY*6CH INPUT *TONE OFFINPUTFREQ.REMARKUNITNOMINALLIMIT1INPUT SENSITIVITY6CH INPUT1kHzR/OmV2003020050TOTAL HARMONIC DISTORTION6CH INPUT20HzR
9、/O-3dB% 0.07 0.09(STEREO IN)1kHzR/O-3dB% 0.07 0.0920KHzR/O-3dB% 0.07 0.09CONTINUOUS AVERAGE POWER 6CH INPUT20Hz(6)ohmsW7572 at 0.1% THD1kHz?W7572(STEREO IN)20kHz?W7572S/N RATIO, INPUT SHORT6CH INPUT1kHzR/OdB 90 85IHF-A FILTERFREQUENCY RESPONSE (-3dB)6CH INPUT1W/1KHz Ref.HzkHz205520502. CENTER AMP SE
10、CTION *SPKR LEVEL : ALL 0dB *SPK SIZE:LLLY*6CH INPUT *TONE OFFINPUTFREQ.REMARKUNITNOMINALLIMIT1INPUT SENSITIVITY6CH INPUT1kHzR/OmV2003020050TOTAL HARMONIC DISTORTION6CH INPUT20HzR/O-3dB% 0.07 0.09(STEREO IN)1kHzR/O-3dB% 0.07 0.0920kHzR/O-3dB% 0.07 0.09CONTINUOUS AVERAGE POWER 6CH INPUT20Hz(6)ohmsW75
11、72 at 0.1% THD1kHz?W7572(STEREO IN)20kHz?W7572S/N RATIO, INPUT SHORT6CH INPUT1kHzR/OdB 90 85IHF-A FILTER5FREQUENCY RESPONSE (-3dB)6CH INPUT1W/1kHz Ref.HzkHz20552050DESCRIPTIONDESCRIPTION23452343SPECIFICATION3. SURROUND AMP SECTION*SPKR LEVEL : ALL 0dB *6CH INPUT INPUTFREQ.REMARKUNITNOMINALLIMIT1INPU
12、T SENSITIVITY6CH INPUT1kHzR/OmV2003020050TOTAL HARMONIC DISTORTION6CH INPUT20HzR/O-3dB%?0.07?0.09(STEREO IN)1kHzR/O-3dB%?0.07?0.0920kHzR/O-3dB%?0.07?0.09CONTINUOUS AVERAGE POWER 6CH INPUT20Hz(6)ohmsW7572 at 0.1% THD1kHz?W7572(STEREO IN)20kHz?W7572S/N RATIO, INPUT SHORT6CH INPUT1kHzR/OdB?90?85IHF-A F
13、ILTERFREQUENCY RESPONSE (-3dB)6CH INPUT1W/1kHz Ref.HzkHz205520504. SUBWOOFER SECTION*SPKR LEVEL : ALL 0dB *6CH INPUT INPUTFREQ.REMARKUNIT*TONE OFFNOMINALLIMIT1PRE OUTPUT LEVELSUB-CH(200mV)30HzVOL max.V1.70.51.71.05. STEREO SECTION*SPKR LEVEL : ALL 0dB *TONE OFF(TONE DIRECT)INPUTFREQ.REMARKUNITNOMINA
14、LLIMIT1INPUT SENSITIVITY CD1kHzmV20030200502CHANNEL BALANCE CD1kHzR/O TO -40dBdB234RESIDUAL NOISE 1kHzVOL min.mV?1.0?1.25TOTAL HARMONIC DISTORTION(20)HzR/O-3dB%?0.07?0.09CD 1kHz?%?0.07?0.09 (20)kHz?%?0.07?0.096CONTINUOUS AVERAGE POWER (20)Hz(6)ohmsW7572 at 0.1% THDCD1kHz?W7572 (20)kHz?W75728S/N RATI
15、O,IHF-A FILTER1kHzR/OdB?90?859CHANNEL SEPARATION100HzR/O-3dBdB?57?50 CD1kHz?dB?57?55 10kHz?dB?57?5510FUNCTION CROSSTALKCD?TAPE 1kHz?dB?65?6010kHz?dB?45?4011FREQUENCY RESPONSE (-3dB)CD 1WHzkHz2055205012TONE CONTROL , (12)dB100Hz1WdB12(2)12(3)(TONE ON)10kHz?dB12(2)12(3)13HEADPHONE OUTPUT CD1kHzR/OV2.5
16、0.52.51.0 H/P = 64ohmsCDCDCDDESCRIPTIONDESCRIPTIONDESCRIPTION2345*SPK SIZE:LLLY*SPK SIZE:LLLY*TONE OFF*SPK SIZE:LLLY46. Idle Voltage*SPKR LEVEL : ALL 0dB *6CH Input *TONE OFF(TONE DIRECT), *TEST BD : AMP*Test Point : R221(FL,FR,SL,SR,C) Both Sides Voltage(DC).NO.INPUTFREQ.REMARKUNITNOMINALLIMIT1FL-R
17、221FLmV2.70.32.70.52FR-R221FRmV2.70.32.70.53SL-R221SLmV2.70.32.70.54SR-R221SRmV2.70.32.70.55C-R221CmV2.70.32.70.57. DOLBY DIGITAL INPUT SECTIONINPUT : COAXIAL (CD DIGITAL)VOLUME POSISTION : -18dBSURROUND MODE : DOLBY DIGITALAT SPEAKER OUT Disc : LD VER 1.0NOINPUTFREQ.CHAPUNITNOMINALLIMITOUT PUT LEVE
18、LFRONT1kHz8 ,12V9.519.52Disc All CH 0dBCENTER1kHz10V9.519.52SPK MODE:LLLYSURR1kHz14,16V9.519.52S/W30Hz18V1.00.31.00.4T.H.DFRONT1kHz38?0.3?0.5Disc 0dBCENTER1kHz38?0.3?0.5LPF(20kHz)SURR1kHz38?0.3?0.5SPK MODE:LLLYS/W30Hz18?0.25?0.3S/NFRONT1kHz6dB?65?60LPF(20kHz)CENTER1kHz6dB?65?60JIS-A FILTER, Disc -20
19、dBSURR1kHz6dB?65?60SPK MODE : LLLYS/W30Hz18dB?65?60DYNAMIC RANGEFRONT1kHz38dB-111-112CENTER1kHz38dB-111-112SURR1kHz38dB-111-112S/W30Hz18dB0102DIALOG FRONT43dB-100.5-101NORMALIZATIONCENTER43dB-100.5-101SURR43dB-100.5-101S/W43dB-100.5-101OUTPUT CONFIG 1FRONT1kHz38(ref)dB-171-173SPK MODE : SSSY20Ref :
20、1KHz 0dBCENTER1kHz38(ref)dB-171-17320SURR1kHz38(ref)dB-171-17320Ref : 30Hz 0dBS/W30Hz18(ref)dB6.016.0222OUTPUT CONFIG 2FRONT1kHz38(ref)dB5.515.52SPK MODE : LSSN18DOWNMIXING TESTCENTER1kHz10(ref)dB-30.5-31SPK MODE : LSSYC-NOSURR.L1kHz14dB-30.5-31LS-NOSURR.R1kHz16dB-30.5-31RS-NOFRONT1kHz6(ref)dB7.517.
21、52ST:ON78DESCRIPTION123456CHANNEL*SPK SIZE:LLLY*Main Vol : -18dB58. DTS INPUT SECTIONINPUT : COAXIAL, CD DIGITALVOLUME POSISTION : -18dBSURROUND MODE : DTS SURROUND AT PREOUT SPK MODE LLLY DTS TEST Disc(TRACK 9,10,11,12,13,14,15)NOINPUTFREQ.TRACKUNITNOMINALLIMITOUTPUT LEVELFRONT1kHz 1kHz 1kHz 1kHz 1
22、kHz 1kHz 1kHz 1kHz 1kHz 10,11V9.519.52Disc : DTS 0dBCENTER14V9.519.52LLLYSURR12,13V9.519.52S/W30kHz15V1.00.31.00.4THD FRONT10,11?0.3?0.5Disc : DTS 0dBCENTER14?0.3?0.5LPF(20KHz)SURR12,13?0.3?0.5LLLYS/W30kHz15?0.3?0.5S/N FRONT10,11dB?65?60Disc 0dB,JIS ACENTER14dB?65?60LPF(20KHz)SURR12,13dB?65?60LLLYS/
23、W30kHz15dB?65?60123DESCRIPTION6Measuring methods in confirmity with IEC standard 315Measurements condition FM : Ref. frequency = ( 98.1 MHz), Audio frequency = 1kHzReference level = 1 mV on (75ohms, 300ohms) Deviation :Filter = B.P.F at STEREO and MONOTest Point : TP1 = 90.1 MHz, TP2 = 98.1 MHz, TP3
24、 = 106.1 MHz(50kHz STEP)MOD:40 kHz(Mono)/40 kHz7.5 kHz (STEREO)9. FM SECTION NOUNITNOMINALLIMIT1TUNING COVER RANGELOW HIGHMHzSTEPAUTO/MANUALkHz2USABLE SENSITIVITYTP 1dBu?12?15S/N = 30TP 2dBu?12?15TP 3dBu?12?153AUTO STOP LEVELdBu2562584S/N RATIO MONOdBu?55?50IHF ASTEREOdBu?50?455T.H.DMONO 1, 1kHz?0.7
25、?1.2STEREO 1, 1kHz?1.0?1.56OVER LOAD DISTORTION (120dBu,75kHz)MONOdB?2?37STEREO SEPARATION250?dBu?30?25(MAIN 53.5%, PILOT 10%)dBu?30?25EXT 19kHz FILTER6.3dBu?20?158FREQUENCY RESPONSE (50us, -3dB)TP 2Hz608k707k9IF REJECTIONTP 1dB?75?7010IMAGE REJECTIONTP 3dB?75?7011AM SUPRESSION (at AM 30% 1kHz)dB?40
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