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 PRECAUTIONS WARNING Before servicing this unit, familiarize yourself with the following precautions: 1. Many electrical and mechanical parts in this chassis have special safety characteristics that often pass unnoticed and the protection afforded by them cannot necessa
2、rily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements: electrical components having such features are identified by in the schematic diagram and the p
3、arts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards. 2. Before returning the set to the cust
4、omer, always do an AC leakage current check on the exposed metal parts of the cabinet, such as terminals, screw heads, and metal overlays, to be sure the set is safe to operate danger of electrical shock. Plug the AC line cord directly into a 120 V AC outlet(USA Version) or 230 V AC outlet(EU Versio
5、n). (Do not use a line isolation transformer during this check.) Be sure your AC voltmeter has a sensitivity of 5000 per volt or greater. Then connect a 1500 10 watt resistor, paralleled by a 0.15 F 150 V AC capacitor, between a known good earth ground(such as a water pipe, or conduit) and the expos
6、ed metallic parts, one at a time. Measure the AC voltage across the combination of a 1500 resistor and a 0.15 F capacitor. Reverse the AC plug at the AC outlet and repeat AC voltage measurements for each exposed metalic part. Voltage measured must not exceed 0.75 V RMS. This corresponds to 0.2 mA AC
7、. Any value exceeding this limit constitutes a potential shock hazard and must be corrected immediately. 2 RadioFans.CN 收音机爱 好者资料库 Measuring methods are based on IHF and IEC standard 268-3 Measurements conditions,unless otherwise noted : Output resistive load = (6) ohms / Both channel driven Tone Di
8、rect ON , Other SWs : OFF Power figures should be kept minimum 10min. between 15 and 35c Filter : IHF-A filter,R/O = Rated Output Power supply : 240 V / 50 Hz 1. FRONT AMP SECTION *SPKR LEVEL : ALL 0dB *SPK SIZE:LLLY *6CH INPUT *TONE OFF INPUTFREQ.REMARKUNITNOMINALLIMIT 1INPUT SENSITIVITY6CH INPUT1k
9、HzR/OmV2003020050 TOTAL HARMONIC DISTORTION6CH INPUT20HzR/O-3dB% 0.07 0.09 (STEREO IN)1kHzR/O-3dB% 0.07 0.09 20KHzR/O-3dB% 0.07 0.09 CONTINUOUS AVERAGE POWER 6CH INPUT20Hz(6)ohmsW7572 at 0.1% THD1kHz?W7572 (STEREO IN)20kHz?W7572 S/N RATIO, INPUT SHORT6CH INPUT1kHzR/OdB 90 85 IHF-A FILTER FREQUENCY R
10、ESPONSE (-3dB)6CH INPUT1W/1KHz Ref.HzkHz20552050 2. CENTER AMP SECTION *SPKR LEVEL : ALL 0dB *SPK SIZE:LLLY *6CH INPUT *TONE OFF INPUTFREQ.REMARKUNITNOMINALLIMIT 1INPUT SENSITIVITY6CH INPUT1kHzR/OmV2003020050 TOTAL HARMONIC DISTORTION6CH INPUT20HzR/O-3dB% 0.07 0.09 (STEREO IN)1kHzR/O-3dB% 0.07 0.09
11、20kHzR/O-3dB% 0.07 0.09 CONTINUOUS AVERAGE POWER 6CH INPUT20Hz(6)ohmsW7572 at 0.1% THD1kHz?W7572 (STEREO IN)20kHz?W7572 S/N RATIO, INPUT SHORT6CH INPUT1kHzR/OdB 90 85 IHF-A FILTER 5FREQUENCY RESPONSE (-3dB)6CH INPUT1W/1kHz Ref.HzkHz20552050 DESCRIPTION DESCRIPTION 2 3 4 5 2 3 4 3 SPECIFICATION Radio
12、Fans.CN 收音机爱 好者资料库 3. SURROUND AMP SECTION *SPKR LEVEL : ALL 0dB *6CH INPUT INPUTFREQ.REMARKUNITNOMINALLIMIT 1INPUT SENSITIVITY6CH INPUT1kHzR/OmV2003020050 TOTAL HARMONIC DISTORTION6CH INPUT20HzR/O-3dB%?0.07?0.09 (STEREO IN)1kHzR/O-3dB%?0.07?0.09 20kHzR/O-3dB%?0.07?0.09 CONTINUOUS AVERAGE POWER 6CH
13、INPUT20Hz(6)ohmsW7572 at 0.1% THD1kHz?W7572 (STEREO IN)20kHz?W7572 S/N RATIO, INPUT SHORT6CH INPUT1kHzR/OdB?90?85 IHF-A FILTER FREQUENCY RESPONSE (-3dB)6CH INPUT1W/1kHz Ref.HzkHz20552050 4. SUBWOOFER SECTION *SPKR LEVEL : ALL 0dB *6CH INPUT INPUTFREQ.REMARKUNIT *TONE OFF NOMINALLIMIT 1PRE OUTPUT LEV
14、ELSUB-CH(200mV)30HzVOL max.V1.70.51.71.0 5. STEREO SECTION *SPKR LEVEL : ALL 0dB *TONE OFF(TONE DIRECT) INPUTFREQ.REMARKUNITNOMINALLIMIT 1INPUT SENSITIVITY CD1kHzmV2003020050 2CHANNEL BALANCE CD1kHzR/O TO -40dBdB23 4RESIDUAL NOISE 1kHzVOL min.mV?1.0?1.2 5TOTAL HARMONIC DISTORTION(20)HzR/O-3dB%?0.07?
15、0.09 CD 1kHz?%?0.07?0.09 (20)kHz?%?0.07?0.09 6CONTINUOUS AVERAGE POWER (20)Hz(6)ohmsW7572 at 0.1% THDCD1kHz?W7572 (20)kHz?W7572 8S/N RATIO,IHF-A FILTER1kHzR/OdB?90?85 9CHANNEL SEPARATION100HzR/O-3dBdB?57?50 CD1kHz?dB?57?55 10kHz?dB?57?55 10FUNCTION CROSSTALKCD?TAPE 1kHz?dB?65?60 10kHz?dB?45?40 11FRE
16、QUENCY RESPONSE (-3dB)CD 1WHzkHz20552050 12TONE CONTROL , (12)dB100Hz1WdB12(2)12(3) (TONE ON) 10kHz?dB12(2)12(3) 13HEADPHONE OUTPUT CD1kHzR/OV2.50.52.51.0 H/P = 64ohms CD CD CD DESCRIPTION DESCRIPTION DESCRIPTION 2 3 4 5 *SPK SIZE:LLLY *SPK SIZE:LLLY *TONE OFF *SPK SIZE:LLLY 4 RadioFans.CN 收音机爱 好者资料
17、库 6. 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.REMARKUNITNOMINALLIMIT 1FL-R221FLmV2.70.32.70.5 2FR-R221FRmV2.70.32.70.5 3SL-R221SLmV2.70.32.70.5 4SR-R221SRmV2.70.32.70.5 5C-R221CmV2.70.3
18、2.70.5 7. DOLBY DIGITAL INPUT SECTION INPUT : COAXIAL (CD DIGITAL)VOLUME POSISTION : -18dB SURROUND MODE : DOLBY DIGITALAT SPEAKER OUT Disc : LD VER 1.0 NOINPUTFREQ.CHAPUNITNOMINALLIMIT OUT PUT LEVELFRONT1kHz8 ,12V9.519.52 Disc All CH 0dBCENTER1kHz10V9.519.52 SPK MODE:LLLYSURR1kHz14,16V9.519.52 S/W3
19、0Hz18V1.00.31.00.4 T.H.DFRONT1kHz38?0.3?0.5 Disc 0dBCENTER1kHz38?0.3?0.5 LPF(20kHz)SURR1kHz38?0.3?0.5 SPK MODE:LLLYS/W30Hz18?0.25?0.3 S/NFRONT1kHz6dB?65?60 LPF(20kHz)CENTER1kHz6dB?65?60 JIS-A FILTER, Disc -20dBSURR1kHz6dB?65?60 SPK MODE : LLLYS/W30Hz18dB?65?60 DYNAMIC RANGEFRONT1kHz38dB-111-112 CENT
20、ER1kHz38dB-111-112 SURR1kHz38dB-111-112 S/W30Hz18dB0102 DIALOG FRONT43dB-100.5-101 NORMALIZATIONCENTER43dB-100.5-101 SURR43dB-100.5-101 S/W43dB-100.5-101 OUTPUT CONFIG 1FRONT1kHz38(ref)dB-171-173 SPK MODE : SSSY20 Ref : 1KHz 0dBCENTER1kHz38(ref)dB-171-173 20 SURR1kHz38(ref)dB-171-173 20 Ref : 30Hz 0
21、dBS/W30Hz18(ref)dB6.016.02 22 OUTPUT CONFIG 2FRONT1kHz38(ref)dB5.515.52 SPK MODE : LSSN18 DOWNMIXING TESTCENTER1kHz10(ref)dB-30.5-31 SPK MODE : LSSYC-NO SURR.L1kHz14dB-30.5-31 LS-NO SURR.R1kHz16dB-30.5-31 RS-NO FRONT1kHz6(ref)dB7.517.52 ST:ON 7 8 DESCRIPTION 1 2 3 4 5 6 CHANNEL *SPK SIZE:LLLY*Main V
22、ol : -18dB 5 RadioFans.CN 收音机爱 好者资料库 8. DTS INPUT SECTION INPUT : COAXIAL, CD DIGITALVOLUME POSISTION : -18dB SURROUND MODE : DTS SURROUND AT PREOUT SPK MODE LLLY DTS TEST Disc(TRACK 9,10,11,12,13,14,15) NOINPUTFREQ.TRACKUNITNOMINALLIMIT OUTPUT LEVELFRONT1kHz 1kHz 1kHz 1kHz 1kHz 1kHz 1kHz 1kHz 1kHz
23、10,11V9.519.52 Disc : DTS 0dBCENTER14V9.519.52 LLLYSURR12,13V9.519.52 S/W30kHz15V1.00.31.00.4 THD FRONT10,11?0.3?0.5 Disc : DTS 0dBCENTER14?0.3?0.5 LPF(20KHz)SURR12,13?0.3?0.5 LLLYS/W30kHz15?0.3?0.5 S/N FRONT10,11dB?65?60 Disc 0dB,JIS ACENTER14dB?65?60 LPF(20KHz)SURR12,13dB?65?60 LLLYS/W30kHz15dB?65
24、?60 1 2 3 DESCRIPTION 6 RadioFans.CN 收音机爱 好者资料库 Measuring methods in confirmity with IEC standard 315 Measurements condition FM : Ref. frequency = ( 98.1 MHz), Audio frequency = 1kHz Reference level = 1 mV on (75ohms, 300ohms) Deviation : Filter = B.P.F at STEREO and MONO Test Point : TP1 = 90.1 MHz
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