Technics-SUVX500-int-sm(1) 维修电路原理图.pdf
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1、R O MService ManualStereo Integrated AmplifierSPECIFICATIONS(DIN 45 500) MAIN AMP. SECTION(POWER AMP. DIRECT Input)20 Hz ? 20 kHz continuous power outputboth channels driven1 kHz continuous power outputboth channels driven (THD: 1%)63 H 12.5 kHz continuous power outputboth channels driven (THD: 0.7%
2、)2x65 W (8 )2X90 W (4 )2 x 60 W (8 oM)2 80 W (4 )Total harmonic distortion (Power Amp Direct Input)rated power at 20 Hz20 kHz 0.007% (8 )half power at 20 Hz 20 kHz 0.005% (8 )Intermodulation distortion (SO Hz: 7 kHz = 4:1. SMPTE)rated power 0.007 % (8 )Residual hum and noise 0.2 mVDamping factor 60
3、(8 ). 30 (4 )Headphones output level and Impedance 540 mV/330 Load ImpedanceA or B, BI?WIRING 4?16Aand B 8?16PRE AMP. SECTIONand impedanceInput sensitivity aPHONO MM 2?5 mV/47 kPHONO MC 170 V/220 TUNER, CD, AUX, TAPE 1, TAPE 2/DAT 150 mV/22 kPOWER AMP DIRECT 1 V/18 kPhono maximum Input voltage (1 kH
4、z, RMS)MM 160 mV. IMF 66MC 12 mV. IMF 66AmplifierSU?VX500CountryCode(E)(EB)(EG)(GC)(GN)AreaContinental EuropeGreat BritainF.R. Germany and ItalyAsia. Latin America.Middle Near East andAfricaOceaniaColor(K)S/N (rated power, 4 )PHONO MM 78 dB (85 dB. IMF 66)PHONO MC 66 dB (S = 250 V. 67 dB, IHF 66)97
5、dB (99 dB. IHF66)106 dB (115 dB, IHF 661POWER AMP DIRECTS/N at 26 dB power (4 )PHONO MM 76 dBPHONO MC 66 dBTUNER, CD, AUX, TAPE 1, TAPE 2/DAT 84 dBSIN at 50 mW power (4 )PHONO MM 75 dBPHONO MC 66 dBTUNER, CD, AUX, TAPE 1, TAPE 2/DAT 78 dBFrequency responsePHONO MM RIAA standard curve0.8 dB (30 Hz15
6、kHz)TUNER, CD, AUX. TAPE 1, TAPE 2/DAT3Hz?100kHz(+0, ?3dB)+0 dB, ?0.2 dB (20 Hz20 kHz)POWER AMP DIRECT 2 Hz120 kHz (+0, ?3 dB)+0 dB. ?0.2 dB (20 Hz20 kHz)Tone controlsBASS 50HZ, +10 dB, ?10dBTREBLE 20kHz +10 dB, ?10 dBLoudness control (volume at ?30 dB) 50 Hz. +9 dBOutput voltageTAPE 1, TAPE 2/DAT R
7、EC OUT 150 mVTechnics2 x 50 W (8 )ColorAreas(K) Black TypeRadioFans.CN 收音机爱 好者资料库microSU-VX500 GENERALPower consumption 530 WPower supply for Great Britain and OceaniaF.R. Germany, Italy and Continental Europe:AC 50/60 Hz. 230/240 Vfor Others: AC 50760 Hz. 110 V/127 V/220 V/240 V CONTENTSDimension.
8、(W x H x D) 430 x 125x316 mm(16-15/16 x4-15/16x 12-7/16)Weight 8,1 kg (17.82 Ib.)Notes:1. Specifications are subject to change without notice.Weight and dimensions are approximate.2. Total harmonic distortion is measured by the digital spectrumanalyzer.Page PageBEFORE REPAIR AND ADJUSTMENT 2 PRINTED
9、 CIRCUIT BOARDS 15-18PROTECTION CIRCUITRY 2 WIRING CONNECTION DIAGRAM 19ACCESSORY 2 BLOCK DIAGRAM 20LOCATION OF CONTROLS 3 MEASUREMENTS AND ADJUSTMENTS 21CONNECTIONS 4-6 REPLACEMENT PARTS LIST 22-24,27DISASSEMBLY INSTRUCTIONS 7-10 CABINET PARTS LOCATION 25 25SCHEMATIC DIAGRAM 11-14 PACKAGING 28I BEF
10、ORE REPAIR AND ADJUSTMENT(1) Tum off the power supply. Using a. 10oM, 10 W resistor, shortcircuit both ends of power supply capacitors C001, C002. C705and C706 in order to discharge the voltage.(2) Before turning on the power switch of the unit,A. Connect the voltage controller to the primary side.B
11、. Connect the AC ampere meter to the primary side or conned the DC voltage meter to the B circuit of the secondaryside.C. Turn the VR of ICQ (VR451, VR452. VR501 and VH502) to minimum (counterclockwise).D. Alter setting the output to zero of the voltage controller, turn on the power switch of the un
12、it.And increase the output of voltage controller gradually.Then, check carefully whether the current value of primary side become more than following value or whether the DCvoltage of secondary side is increasing slowly.E. II the value of current is increasing unusually or the DC voltage is not incr
13、easing, lower the output level of voltagecontroller Immediately.The current value of the primary side at no signal. (Confirm the power supply voltage ot each area and provided voltage ofthe unit.)Power supply voltageConsumed current50 HzAC 1 1 0 V250-540 mAAC 120V210-500 mAAC 220V90-370 mAAC 230 V80
14、-360 mAAC 240 V70-350 mAI PROTECTION CIRCUITRYThe protection circuitry of the amplifier may have operated if either ofthe following conditions is noticed:No sound Is heard when the power is turned on.Sound stops during a performance.The function of this circuitry is to prevent circuitry damage if, f
15、orexample, the positive and negative speaker connection wires areshorted, or if speaker systems with an impedance less than theindicated rated Impedance of the amplifier are used.It this occurs, follow the procedure outlined below:1. Turn off the power.2. Determine the cause of the problem and corre
16、ct it.3. Turn on the power once again.Note:When the protection circuitry functions, the unit will not operateunless the power is first turned off and then on again.I ACCESSORYAC power supply cords For (E), (EG) areas. For (EB) area only. For (GC) area only. For (GN) area only.-2-RadioFans.CN 收音机爱 好者
17、资料库PRINTED CIRCUIT BOARD DIAGRAMSU-VX500 SU-VX500PHONO PC.B.PHONO SELECTOROPERATION PC.B.56789PHONO SELECTOROPERATION PC.B.111098INPUT SELECTOR P.C.B.SU-VX500SU-VX5001314151617V-AMP PC.BPOWER SWITCH PC.B. ForE.EB, EG.GN) areas.VOLTAGE ADJAC IN / VOLTAGE ADJ. PC. B. ForE, EB, EG.GNareasSU-VX500171819
18、202122V-AMP PC.BPower Source For (GC area.AnodCthodeCathodeCaP300DLFAnodeCathodeCCathodeMA4033MTAMA4036MTAAnodeACaCathode2SA1535AQRS2SC3944AQRS2SA1309AQSTA2SC3311AQSTAUPC4570CAN7062N8 Pin18 PinSVI3205AREPLACEMENT PARTS LISTNotes : * Important safety notice:Components identified by A mark have specia
19、l characteristics important for safety.When replacing any of thesecomponents use only manufacturers specified parts.* The parenthesited indications in the Rearks columns specify the areas. (Refer to the cover page for area.)Parts without these indications can be used for all areas.Ref.NaIC101IC301IC
20、401IC501Q101?104101, 402Q451. 452Q453, 4540455. 456Q457. 4580459, 4600461, 4620463, 464Q465, 4660501?503Q751Q752Q753, 754Q755D101. 102D401. 402D403, 404D405, 406D451M53?456D501?503D503D504D601D6020603,604D605D702?705D751VR201Part No.UPC4570CUPC4570CAN7062NSVI3205A2SK170BLTPE22SA1123RSA2SC2631RSA2SC3
21、311A?Q2SA1309A?R2SC2631RSA2SA1123RSA2SC3944AQRS2SA1535AQRS2SC1685RST2SA992EFPTA2SD2037DEFTA2SB1357DEFTA2SK301PQTA2SA1309A?RMA165MA167MA4036MTAMA165MA29WAMA165MA165MA4160MMA4160M1SR35200TBLN014304PLN018304PMA4033TAP300DLFMA4180?MRRV16J02APart Name & DescriptionNTEGRATED CIRCUIT (S).C.PHONO/EQ.AMP. C,
22、 TONE AMP. C, VOLTAGE AMP. C, POWER AMP.TRANSISTOR(S)TRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORDIODE (S)DIODEDIODEDIODEDIODEDIODEDIODEDIODEDIODEDIODEDIODEL.E.D.LD.DIODEDIODEDIODEVARIABLE RESIS
23、TOR(S)V.R. VOLUME CONTROLRemarksARef.NaVR202VR301, 302VR451. 452TH201, 202LIL101. 102L501?504L551TlTlFlFlF2SIS2S2S101S102S103S201S202S203S501CN101CN102CN103. 104CN105?107CN201Part No.EVJ02QFA2G15EVJYA1FA2C15EVNDXAAOOB52RTD2ZHL104TSLQZ650MH49SLM1Z33SLQY18G?10ELEPK2R2MARTP1N5E011RTP1N5E012XBA2C25TBOXB
24、A2C50TBOXBA2C25TBOESB8249VESD26200AESE37263RSR6B002?JRSS6D001RSS2D006?AESB68107ESB68132RSP2DX8?ARSR4B004?ARJU003K010URJU003K008M1RJT060B05RJU057W007RJU003K010M1Part Name & DescriptionV. R, BALANCEV. R. BASS/TREBLE CONT.V. R. ICQ ADJ. (V?AMP. )THERMISTOR(S)THERMISTORCOIL(S)COILCOILCOILCOILTRANSFORMER
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