Hitachi-SR503-rec-sm 维修电路原理图.pdf

SERUICE MAilUAlEnglishFranqaisNo. 108l.liii:iili:ii : .i*ii#:;l:;ji*:j:*ls!s1*i r. .: _.:.,.ir:ai.:.jt:. .,.-.rl-.:.:ssR -503SPECIFICATIONS. FM SECTIONFrequency rangeUsable sensitivity50 dB Quieting sensitivitySignal-to-noise ratio (at 65 dtsflHarmonic distortion (at 65 dBf)100tlzI kHz6 kHzFrequency responseImage response ratioSpurious response ratioIF response ratioAlternate channel selectivityCapture ratioAM suppressionStereo separationSub carrier suppressionSCA rejectionMuting thresholdAntenna input. AM SECTIONFrequency rangeSensitivityImage rejectionIF rejectionSelectivity (IHF)Signal-to-noise ratioAntenna88 - 108 MHzMono : 1 1.2 dBf (2.0pV)Mono: 17 dBf (3.9pV) Stereo:37 dBf (39pV) (sR -603) is indicated IHF 58Mono: 74 dBMono:0.15%Mono: 0.15%Mono:0.2%Stereo: 67 dBStereo: 0.3%Stereo: 0.3%Stereo: 0.4%30 Hz- l2kHz (1? 3dB)50 dB80 dB90 dB60 dB1dB60 dBa5 dB (1 kHz)60 dB60 dB21 dBf (6.3pV)300 ohms balanced530- 1,605kH22501tY lm(S/N 20 dB), 15pV (IHF, Ext. Antenna)55 dB35 dB35 dB50 dBFerrite and separate antenna terminalAM /il STEREO RECEIUERJ an uaryt977RadioFans.CN 收音机爱 好者资料库HTTACHt SR-503/SR-603. AUDIO SECTIONOutputRMS power(Both channel driven)Power bandwidthFrequency characteristics (AUX, TAPE)Ilarmonic distortion(at rated output)(at lz rated output)Intermodulation distortion(at rated output)(at lznted output)Input sensitivity (Impedance)PHONOAUXTAPE.lTAPE-2DINOutput levelTAPE OUTDIN OUTPhono overload level (at 1 kHz)Signal-to-noise ratio(IHF, A network, rated power)PHONOAUXTAPEDamping factorEqualizerBass controlTreble controlLoudness controlHigh filter (SR-603)Semi-conductorPower supplyPower consumptionDimensionsWeight SR-503sR-60320 watts (SR-503),30 watts (SR-603) per channel, min.RMS, at 8 ohms from 20Hz to 20kHz, with no morethan 0.3% total harmonic distortion.25W I ch + 25W I ch (8 ohms, 1 kHz, T.H.D . 0.3%) (SR-503)36W/ch + 36W/ch (8 ohms, I kHz,T.H.D. 0.37,) (SR-603)30W/ch + 30W/ch (4 ohms, I kHz, T.H.D .O.3%) (SR-503)42W I ch + 42W I ch (4 ohms, 1 kHz, T.H.D .0.3%) (SR-603)45W/ch + 45Wi ch (8 ohms) (SR-s03)50W/ch + 50Wi ch (8 ohms) (SR-603)55W/ch + 55W/ch (4 ohms) (SR-503)60W/ch + 60W/ch (4 ohms) (SR-603)10 Hz-50 kHz20Hz-2OkHz(tl dB)Less than 0.3%Less than 0.03%Less than 0.3%Less than 0.05%(at22W (SR-503),32W (SR-603) output, I kHz)2.5 mV (a7k ohm$200 mV (aOk ohm$200 mV ( 0k ohm$200 mV (40k ohms)450 mV (i00k ohms)200 mV (PHONO, AUX at rated input)300 mV (FM 400 H2,30% dev. input. I mV)300 mV (AM 400 H430% mod. input. 5 mV/m)40 mV (PHONO at rated input)110 mV70 dB90 dB90 dB25 (SR-503), 30 (SR-603) (l kHz, 8 ohm$RIAA 10,3 dBt 10 dB (r00 H4I 10 dB (tOtHz;+8 dB (100 Hz) ,+4 dB (l0kHz)-6 dB at 10kHzI FET, 4ICs, 14 Transistors and 18 Diodes (SR-503)I FET,4lCs, 18 Transistors and22 Diodes(SR-603)AC 120Y 60Hz115W or 130VA (SR-503), 145W or 170VA (SR-603)171/s(W) x 5|t/ro(H) x la tVn (D) rn.43.s(w) x 13.a(H) x 35.9(D) cm7.6kg (16.7 lbs.)8.0kg (17.6lbs.)vSpecifications and designs may be changed without notice for improvement.)vRadioFans.CN 收音机爱 好者资料库HTTACHt SR-503/5R-603r cARAc rnrsreuES TEcHNreuEs)o Partie FM Entre parenthses: IHF 58.Bande de frquence 88 - 108MHzSensibilit utilisable Mono : 1 1,2 dBf (2,0pV)Seuil de sensibilit 50 dB Mono : 17 dBf (3,9sV)Stereo:37 dBf(39pV)Rapport signal/bruit Mono: 74 dB(65 dB| Stereo: 67 dBDistorsion harmonique (65 dB|100H2 Mono.JS%Stereo. O,3%l kHz Mono.0,15%Stereo.0,3%6 kHz Mono:O,2%Sfereo. 0,4%Rponse de frquence 30Hz,l2kHz (l?3 aSlRapport de slectivit 50 dBRapport de rceptionnon slective 80 dBRapport de rception demoyenne frquence 90 dBSlectivite du canal de rechange 60 dBRapport de captage 1 dBSuppression AM 60 dBSparation stro 45 dB (1 kHz)Filtrage de la sous-porteuse 60 dBRjection SCA 60 dBSeul dlimination des parasites 21 dBf (6,3pV)Entre de lantenne 300 ohms composso Partie AMBande de frquence 530- 1.605 kHzSensibilit 250pY lm (S/B 20 dB), 15pV (Antenne ext., IHF)Rejet image 55 dBRejet FM 35 dBSlectivit (IHF) 35 dBRapport signal/bruit 50 dBAntenne Borne dantenne spare et ferriteo Partie AUDIOSortiePuissance nominale 20W/ch + 20W/ch (8 ohms, 20Hz-20kHz, T.H.D. 0,3%) (SR-503)30W/ch + 30W/ch (8 ohms, 20Hz-20 kHz, T.H.D. 0,3%) (SR-603)25W I ch + 25W/ch (8 ohms, I kHz, T.H.D. 0,3%) (SR-503)36W/ch + 36W/ch (8 ohms, I kHz, T.H.D .0,3%) (SR-603)30Wi ch + 30Wi ch(4 ohms, 1 kHz, T.H.D.0,3%) (SR-503)42W I ch+ 42W I ch (4 ohms, 1 kHz, T.H.D .0%) (SR-603)Fuissance nominale 45W/ch + 45W/ch (8 ohms) (SR-503)50w/ch + 50w/ch (8 ohms) (sR-603)55Wi ch + 55W/ch (8 ohms) (SR-503)60W / ch + 60W / ch (4 ohms) (SR - 603)Sortie bande passante l0Hz-50 kHzBande passante (AUX, TAPE) 20Hz-20 kHz (11 dB)Distorsion harmonique( la puissance relle) 0,3%( la moiti de la puissance relle) 0,03%-3-HITACHI SR-5O3/SR.6O3Distorsion dintermodulation( la puissance relle)( la moiti de la puissance relle)Sensibilit dentre (impdance)(sous 22W (SR-503), 32W (SR-603)PHONOAUXBande-1Bande-2DINBornes de sortieTAPE OUTDIN OUTNiveau limite phono ( I kHz)Rapport signal/bruitPHONOAUXTAPEFacteur dattnuationCompensateurBasseAiguSonoritHigh filter (SR-603)Semi-conductorAlimentationConsommationDimensionsPoids SR-503sR-6030,3%0,05%I kHz de sortie)2,5 mV (a7 k ohm$200mV (a0 k ohm$200mV (40 k ohms)200mV (a0 k ohm$450mV (i00 k ohms)200mV (PHONO, AUX lentre nominale)300mV (FM 400H2, 30% dentree dev.: 1mV)300mV (AM 400H2, 30% detfire mod.: 5mV/m)40mV (PHONO lentre nominale)11OmV70 dB90 dB90 dB2s (SR-s03), 30 (SR-603) (1 kHz, 8 ohms)RIAA 10,3%110 dB (100H2)t10 dB (10 kHz)+8 dB (100H2),+4 dB (10 kHz)-6 dB (10 kHz)1 FET,4 ICs, 14 Transistors et 18 Diodes (SR503)I FET,4ICs,18 Transistors et 22 Diodes (SR-603)Secteur 120V (60H2)1 l sw (sR-503), 14sW (SR-603)11 t/c(W) x 5t t/10 (H) l4 I rAz(D) in.43,5(W) x 13,4(H) x 35,9(D) cm7,6 kg (16,7 lbs.)8,0 kg (17,6 lbs.)Ifs caractristiques techniques et la prsentation peuvent tre modifiessans pravis pour des raisons damliorationsFEATU REAudio Section1. All-stage Direct-connection lnverted Darlington OCLAmplif ier2. Electronic Protection Circuit (SR -603)3. New lcs in the Equalizer and Main Amplif ierTuner Section1. Dual Gate MOS FET for High Ouality FM Tuner2. High Selectivity and Low Distortion lF Amplifierusing a Newly Developed lC and 2 Ceramic Filters3. Quadrature Detection4. Phase Lock Loop for FM/MPX Circuit5. A Ceramic Filter, lC in AM Tuner6. Two Large Easy-to-read meters (SR-603) and ALarge-sized Flywheel Tuning knobCA RA CT NISTIQU ESSection Audio1. Amplif icateur circuit Darlington OCL inversion et connexion directe pour tous les tages2. Circuit lectronique de protection (SR -603)3. De nouveaux circuits intgrs dans lgalisateur etdans lamplif icateur PrinciPalSection Tuner1. Tuner FM de haut de gmme2. Amplificateur Fl faible taux de distorsion et hauteselectivit employant des circuit intgrs et deuxfilters ceramiques3. Detection quadriphonique4. Boucle blocage de phase pour le circuit FM /MPX5. Un filtre cramique, circuit intgr dans le tuner AM6. Deux mtreurs lecture facile et une molette desyntonisation utilisant un volant de large dimension-4-HTTACHt SR-503/SR-603FRONT AND REAR PANEL . PANNEAUX AVANT ET ARRIEREsR -503O POWER SWITCHO SPEAKER SWITCHES PHONES JACKO BASSCONTROLO TREBLE CONTROLO LOUDNESS SWITCHO MODE SWITCH BALANCECONTROLO VOLUMECONTROL FUNCTION SWITCHO TAPE MONITOR SWITCH-1(E TAPE MONITOR SWITCH.2(E FM MUTE SWITCH (SR-503)(D HIGH FILTER SWITCH (SR-603)(E TUNING KNOB(E FM STEREO INDICATOR(D DIAL POINTER(D SIGNAL/TUNING METER (SR-503(E TUNINGMETER (SR.603I(D SIGNALMETEB (SR.603)(D GROUND TERMINAL PHONO INPUT TERMINALSfD AUX INPUT TERMINALS TAPE-1 DIN REC/PLAY TERMINAL TAPE- PLAYBACK TERMINALS(E TAPE.1 REC OUTTERMINALS(D TAPE.2 PLAYBACK TEBMINALS TAPE-2 REC OUT TERMINALS SPEAKER TERMINALS FUSE (SR-503) AC POWER CORD AC OUTLET (Switched 50 Watts Max)O AM ANTENNA TERMINAL FM ANTENNA TERMINALsR -603O INTERRUPTEUR SECTEURO INTERRUPTEUR DE HAUT-PARLEURS ECOUTEURS STROPHONIOUES( COMMANDE DE GRAVEO COMMANDE DES AIGUSO CORRECTEU R PHYSIOLOGIOUEO COMMANDE DE MODE BALANCEO VOLUME COMMUTATEUR SICCTCUN DE BANDEO COMMUTATEUR MONITEUR.l COMMUTATEUR MONITEUR.2(E COMMUTATEUR FM MUTE (SR.5O3)(E COMMUTATEUR DU FII-TER PASSE.HAUT (SR.603(E BOUTON DACCORD(D INDICATEUR STRO AIGUILLE DIAL(E INDICATEUR DACCORD/PUISSANCE DE SIGNAL(E MTREUR DE SYNTONISATION (SR-603(D INDICATEUR DACCORD (SR.603)(D PRISE DE TERRE BORNE DENTRE PHONOD BORNE DENTRE AUXILIAIRES CONN ECTEU R DENR EGISTREM ENT/ REPRODUCTION DIN BORNE PLAYBACK TAPE-1 BORNE REC OUTTAPE-1D BORNE PLAYBACK TAPE.2D BORNE REC OUT TAPE.2 BORNES DE HAUT-PARLEUR FUSTBLE (SR-503)D CORDON DALIMENTATION PRISE AUXILIAIRE (UNIOUEMENT 12OV)O BORNE DANTENNE OM/OC BORNE DANTENNE FM OUC-24,v