Hitachi-SR603-rec-sm维修电路原理图.pdf

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1、SERUICE MAilUAl English Franqais No. 108 l.liii:iili:ii : .i*ii# :;l:;ji*:j:*ls!s1* i r. .: _.:.,.ir:ai.:.jt: . .,.-.rl-.:.:s sR -503 SPECIFICATIONS . FM SECTION Frequency range Usable sensitivity 50 dB Quieting sensitivity Signal-to-noise ratio (at 65 dtsfl Harmonic distortion (at 65 dBf) 100tlz I

2、kHz 6 kHz Frequency response Image response ratio Spurious response ratio IF response ratio Alternate channel selectivity Capture ratio AM suppression Stereo separation Sub carrier suppression SCA rejection Muting threshold Antenna input . AM SECTION Frequency range Sensitivity Image rejection IF re

3、jection Selectivity (IHF) Signal-to-noise ratio Antenna 88 - 108 MHz Mono : 1 1.2 dBf (2.0pV) Mono: 17 dBf (3.9pV) Stereo:37 dBf (39pV) ( sR -603 ) is indicated IHF 58 Mono: 74 dB Mono:0.15% Mono: 0.15% Mono:0.2% Stereo: 67 dB Stereo: 0.3% Stereo: 0.3% Stereo: 0.4% 30 Hz- l2kHz (1? 3dB) 50 dB 80 dB

4、90 dB 60 dB 1dB 60 dB a5 dB (1 kHz) 60 dB 60 dB 21 dBf (6.3pV) 300 ohms balanced 530- 1,605kH2 2501tY lm(S/N 20 dB), 15pV (IHF, Ext. Antenna) 55 dB 35 dB 35 dB 50 dB Ferrite and separate antenna terminal AM /il STEREO RECEIUER J an uaryt977 RadioFans.CN 收音机爱 好者资料库 HTTACHt SR-503/SR-603 . AUDIO SECTI

5、ON Output RMS power (Both channel driven) Power bandwidth Frequency characteristics (AUX, TAPE) Ilarmonic distortion (at rated output) (at lz rated output) Intermodulation distortion (at rated output) (at lznted output) Input sensitivity (Impedance) PHONO AUX TAPE.l TAPE-2 DIN Output level TAPE OUT

6、DIN OUT Phono overload level (at 1 kHz) Signal-to-noise ratio (IHF, A network, rated power) PHONO AUX TAPE Damping factor Equalizer Bass control Treble control Loudness control High filter (SR-603) Semi-conductor Power supply Power consumption Dimensions Weight SR-503 sR-603 20 watts (SR-503),30 wat

7、ts (SR-603) per channel, min. RMS, at 8 ohms from 20Hz to 20kHz, with no more than 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 c

8、h (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 kHz 20Hz-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)

9、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 mV 70 dB 90 dB 90 dB 25 (SR-503), 30 (SR-603) (l

10、 kHz, 8 ohm$ RIAA 10,3 dB t 10 dB (r00 H4 I 10 dB (tOtHz; +8 dB (100 Hz) ,+4 dB (l0kHz) -6 dB at 10kHz I FET, 4ICs, 14 Transistors and 18 Diodes (SR-503) I FET,4lCs, 18 Transistors and22 Diodes(SR-603) AC 120Y 60Hz 115W or 130VA (SR-503), 145W or 170VA (SR-603) 171/s(W) x 5|t/ro(H) x la tVn (D) rn.

11、43.s(w) x 13.a(H) x 35.9(D) cm 7.6kg (16.7 lbs.) 8.0kg (17.6lbs.) v Specifications and designs may be changed without notice for improvement. ) v RadioFans.CN 收音机爱 好者资料库 HTTACHt SR-503/5R-603 r cARAc rnrsreuES TEcHNreuEs ) o Partie FM Entre parenthses: IHF 58. Bande de frquence 88 - 108MHz Sensibili

12、t 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 dB Distorsion 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

13、,l2kHz (l?3 aSl Rapport de slectivit 50 dB Rapport de rception non slective 80 dB Rapport de rception de moyenne frquence 90 dB Slectivite du canal de rechange 60 dB Rapport de captage 1 dB Suppression AM 60 dB Sparation stro 45 dB (1 kHz) Filtrage de la sous-porteuse 60 dB Rjection SCA 60 dB Seul d

14、limination des parasites 21 dBf (6,3pV) Entre de lantenne 300 ohms composs o Partie AM Bande de frquence 530- 1.605 kHz Sensibilit 250pY lm (S/B 20 dB), 15pV (Antenne ext., IHF) Rejet image 55 dB Rejet FM 35 dB Slectivit (IHF) 35 dB Rapport signal/bruit 50 dB Antenne Borne dantenne spare et ferrite

15、o Partie AUDIO Sortie Puissance 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 kH

16、z, 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 kHz Bande passante (AUX, TAPE

17、) 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.6O3 Distorsion dintermodulation ( la puissance relle) ( la moiti de la puissance relle) Sensibilit dentre (impdance) (sous 22W (SR-503), 32W (SR-603) PHONO AUX Bande-1

18、 Bande-2 DIN Bornes de sortie TAPE OUT DIN OUT Niveau limite phono ( I kHz) Rapport signal/bruit PHONO AUX TAPE Facteur dattnuation Compensateur Basse Aigu Sonorit High filter (SR-603) Semi-conductor Alimentation Consommation Dimensions Poids SR-503 sR-603 0,3% 0,05% I kHz de sortie) 2,5 mV (a7 k oh

19、m$ 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) 11OmV 70 dB 90 dB 90 dB 2s (SR-s03), 30 (SR-603) (1 kHz, 8 ohms) RIAA 10,3% 110

20、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) cm 7,6 kg (16

21、,7 lbs.) 8,0 kg (17,6 lbs.) Ifs caractristiques techniques et la prsentation peuvent tre modifies sans pravis pour des raisons damliorations FEATU RE Audio Section 1. All-stage Direct-connection lnverted Darlington OCL Amplif ier 2. Electronic Protection Circuit (SR -603) 3. New lcs in the Equalizer

22、 and Main Amplif ier Tuner Section 1. Dual Gate MOS FET for High Ouality FM Tuner 2. High Selectivity and Low Distortion lF Amplifier using a Newly Developed lC and 2 Ceramic Filters 3. Quadrature Detection 4. Phase Lock Loop for FM/MPX Circuit 5. A Ceramic Filter, lC in AM Tuner 6. Two Large Easy-t

23、o-read meters (SR-603) and A Large-sized Flywheel Tuning knob CA RA CT NISTIQU ES Section Audio 1. Amplif icateur circuit Darlington OCL inversion et connexion directe pour tous les tages 2. Circuit lectronique de protection (SR -603) 3. De nouveaux circuits intgrs dans lgalisateur et dans lamplif i

24、cateur PrinciPal Section Tuner 1. Tuner FM de haut de gmme 2. Amplificateur Fl faible taux de distorsion et haute selectivit employant des circuit intgrs et deux filters ceramiques 3. Detection quadriphonique 4. Boucle blocage de phase pour le circuit FM /MPX 5. Un filtre cramique, circuit intgr dan

25、s le tuner AM 6. Deux mtreurs lecture facile et une molette de syntonisation utilisant un volant de large dimension -4- HTTACHt SR-503/SR-603 FRONT AND REAR PANEL . PANNEAUX AVANT ET ARRIERE sR -503 O POWER SWITCH O SPEAKER SWITCHES PHONES JACK O BASSCONTROL O TREBLE CONTROL O LOUDNESS SWITCH O MODE

26、 SWITCH BALANCECONTROL O VOLUMECONTROL FUNCTION SWITCH O 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 GR

27、OUND TERMINAL PHONO INPUT TERMINALS fD 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 A

28、NTENNA TERMINAL sR -603 O INTERRUPTEUR SECTEUR O INTERRUPTEUR DE HAUT-PARLEURS ECOUTEURS STROPHONIOUES ( COMMANDE DE GRAVE O COMMANDE DES AIGUS O CORRECTEU R PHYSIOLOGIOUE O COMMANDE DE MODE BALANCE O VOLUME COMMUTATEUR SICCTCUN DE BANDE O COMMUTATEUR MONITEUR.l COMMUTATEUR MONITEUR.2 (E COMMUTATEUR

29、 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 PHONO D BORNE DENTRE AUXILIAIRES CONN ECTEU R DENR EGISTREM ENT/ REPRODUCTION DIN BORNE PLAYBACK TAPE-1 BORNE REC OUTTAPE-1 D BORNE PLAYBACK TAPE.2 D 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