Pioneer-SA708-int-sch 维修电路原理图.pdf

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1、SPECI FICATIONSSemiconductorsf C s . . . 3FETs . 2T r a n s i s t o r s . . . . . 4 1Diodes 31Amplifier SectionContinuous Power Output 0f 65 watts. perchannel, mn., at 8 ohms from 20 Hertz to20,000 Hertz with no more than 0.02 %total harmonic distortion or 65 watts perchannel at 4 ohms from 20 Hertz

2、 to 20,000Hertz with no more than 0.03% totalharmonic distortion.Continuous Power Outpuf at lkHz (both channels driven)T.H.D. 0.02o/o,8 ohms . . 70 watts per channelTotal Harmon ic D istortion (20 Hertz to 20,000Hertz,8 ohms, from AUX)continuous rated power output . . No more than0.02o/o32.5 watfs p

3、er channel power output. . . No more than 0.02%I watt per channel power output . No more than0.02o/oIntermodulation Distortion (50 Hertz: 7,000 Herfz = 4:1 ,8 ohms, from AUX)continuous rated power output . . No more than 0.02o/o32.5 watts per channel power output. . . . . N o m o r e t h a n 0 . 0 2

4、 %1 watt per channel power output . No more than0.02oADamping Factor(20 Hertz to ,20,000 Hertz, 8 ohms) . 35I nput (Sensitivity/l mpedance)PHONO . 2.5mV/50kilohmsTUNER . . 150mV/50kilohmsA U X . . . 1 5 0 m V / 5 0 k i l o h m sT A P E P L A Y l , 2 . . . . . . . 1 5 0 m V / 5 0 k i l o h m sTAPE PL

5、AY 2 (DlN connector) . . . 150mV/50kilohmsPhono Overload Level (T.H.D. 0.01%, l kHz)PHONO . 200mVOutput (Level/l mpedance)T A P E R E C 1 . . . . . l 5 0 m V / l k i l o h mT A P E R E C 2 . . . . . 1 5 O m V / l k i l o h mTAPE REC 2 (DlN connector) 30mV/80kilohmsSpeaker . A, B, A+B (4 - l6ohms)Fre

6、quency ResponsePHONO (RIAA Equalization)20Hz to 20.000H2 10.2d8Tone ControlBASS. . +7.5d8,-7.5d8(100H2)TREBLE +7.5d8, _7.5dB (10,000H2)Subsonic Filter . 15Hz (-6dBloct)Loudness Contour (Volume control set at -40d8position) . . . . . . . . . +6dB (100H2),+3dB (10,000H2)Hum and Noise (lHF, short-circu

7、ited, A network)P H O N O . . . . 8 6 d 8. TUNER, AUX, TAPE PLAY . . IOOdBHum and Noise (DlN continuous power/50mW)PHONO 70dB/60d8TUNER, AUX, TAPE PLAY . 86dB/61d8Muting -20d8MiscellaneousPower RequirementsHA model . .220V.50160H2HRmodel .240V,50160H2S, S/G models 1 10V/1 20V 1220V 1240V, 50/60H2Pow

8、er ConsumptionH A , H R m o d e l s . . . . 6 0 0 WS, S/G models 190WDimensions .420(W) x150(H) x337(D) mm16-9116(w) x s-7l8(H) x 13-1l4(D) inWeight (without package) . . . .9.7kg(21 lb. 6 oz)Furnished Parts. O p e r a t i n g i n s t r u c t i o n s . . . . . 1Fuse 2.5A (S, S/G models only) . . . .

9、 1F u s e 5 A ( S , S / G m o d e l s o n l y ) . . . . . . 1NOTE:Specifications and the design subject to possible modifi-cations without notice due to improuements.* Measured pursuant to the Federanl Trade CommsonsTrade Regulation rule on Power Output Claims forAmplifiers.TUNER, AUX, TAPE PLAYlOHz

10、 to 50.000H2 tl dBRadioFans.CN 收音机爱 好者资料库I t i l i? r l F| ; t I l!: 1 : r :*;:?,55 l; .c* ;:-lfrlt t t;l_.-l- ._ l IRadioFans.CN 收音机爱 好者资料库I- |,:- : I-l-:rr-3 |It-tl9.ELl; . r E gIgl!t?li!Eu,o-fn3TogFo73=lII- ;-=-lsgil*-lt-_t| : g r t il-IL-53 E; ! - : t ; 5 !i ; E 3 ; i i . : ;: i i i i L i Il-6; 3 , 3I