Sony-STRDE675-rec-sm 维修电路原理图.pdf
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1、STR-DE675US ModelCanadian ModelAEP ModelUK ModelE ModelAustralian ModelChinese ModelSERVICE MANUALFM STEREO FM-AM RECEIVERSony CorporationAudio Entertainment GroupGeneral Engineering Dept.9-873-845-112001C1600-1 2001.3 Continued on next page SPECIFICATIONSVer 1.0 2001. 03Dolby Laboratories Licensing
2、 Corporation.“DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC”are trademarks of Dolby Laboratories Licensing Corporation.AUDIO POWERSPECIFICATIONSPOWER OUTPUT ANDTOTAL HARMONICDISTORTION:With 8 ohm loads, bothchannels driven, from 20 -20,000 Hz; rated 100 wattsper channel minimum RMSpower, with n
3、o more than0.09% total harmonicdistortion from 250milliwatts to rated output(USA model only).Amplifier section(8 ohms 20 Hz - 20 kHz,THD 0.09%)100 W + 100 W(8 ohms at 1 kHz, THD0.7%)Front1): 100 W/chCenter1): 100 WSurround1): 100 W/ch1) Depending on the sound field settings andsources, there may be
4、no sound output.MULTI CH IN, CD,MD/TAPE, DVD/LD, TV/SAT,VIDEO 1*,VIDEO 2*, AUX:10 Hz - 50 kHz +0.5/2 dB (with soundfield and equalizerbypassed)Frequency responseReference Power OutputRated Power Output at Stereo modeUS, Canadian MODELSReference Power OutputRated Power Output at Stereo modeAEP, UK MO
5、DEL :(8 ohms 1 Hz, THD 0.7%)100 W + 100 W(8 ohms 1 kHz, THD 0.7%)Front : 100 W/chCenter : 100 WSurround : 100 W/chReference Power OutputRated Power Output at Stereo modeChinese MODEL :(8 ohms 1 Hz, THD 0.7%)90 W + 90 W(at 220 V AC, 50 Hz)100 W + 100 W(at 110 V AC, 50 Hz)(8 ohms 1 kHz, THD 10% at 230
6、 V AC, 50 Hz)Front : 100 W/chCenter : 100 WSurround : 100 W/chReference Power OutputRated Power Output at Stereo modeOthers :(8 ohms 1 Hz, THD 0.7%) 100 W + 100 W(8 ohms 1 kHz, THD 10%) Front : 110 W/chCenter : 110 WSurround : 110 W/chReference Power OutputRated Power Output at Stereo mode(8 ohms 1
7、Hz, THD 0.7%)100 W + 100 W(at 110 V AC, 50 Hz)(8 ohms 1 kHz, THD 10% at 110 V AC, 50 Hz)Front : 100 W/chCenter : 100 WSurround : 100 W/chPhoto : GOLDRadioFans.CN 收音机爱 好者资料库2STR-DE6750.5 % (50 mV/m, 400 kHz)At 9 kHz: 35 dBAt 10 kHz: 40 dBc) You can change the AM tuning interval to 9kHz. After tuning
8、in any AM station, turnoff the receiver. Hold down the TUNING +button and press the ?/1 button. All presetstations will be erased when you change thetuning interval. To reset the scale to 10 kHz,repeat the procedure.Video sectionVideo: 1 Vp-p 75 ohmsS-video*:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsVid
9、eo: 1 Vp-p 75 ohmsS-video*:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsGeneralTuner section:PLL quartz-locked digital synthesizer systemPreamplifier section:Low-noise NF type equalizerPower amplifier section:Pure-complementary SEPPFM tuner section87.5 - 108.0 MHz75 ohms, unbalanced10.7 MHzMono: 18.3 dBf,2
10、.2 V/75 ohmsStereo: 38.3 dBf22.5 V/75 ohms11.2 dBf, 1 V/75 ohmsMono: 76 dBStereo: 70 dBMono: 0.3%Stereo: 0.5%45 dB at 1 kHz30 Hz - 15 kHz +0.5/2 dB60 dB at 400 kHzAM tuner sectionWith 10-kHz tuningscale: 530 - 1710 kHzc)With 9-kHz tuningscale: 531 - 1710 kHz531 - 1602 kHzc)530 - 1610 kHz (10 kHz ste
11、p)c)531 - 1602 kHz (9 kHz step)c)530 - 1610 kHz (10 kHz step)531 - 1602 kHz (9 kHz step)Loop antenna450 kHz50 dB/m (at 1,000 kHz or 999 kHz)54 dB (at 50 mV/m)120 V 230 V AC, 50/60 Hz 120/220/240 V AC, 50/60 Hz110 V AC, 50/60 Hz120 V AC, 60 Hz240 V AC, 50 HzAC, 60 Hz220WIn standby condition: 1 W315 V
12、AIn standby condition: 1 W210 WIn standby condition: 1 W220 WIn standby condition: 1 W230 WIn standby condition: 1 W1 switched, total 100 W Max1 switched, total 120 W/1A Max430 308.5 157.5 mm(14.5 10.4 5.3 in.)including projectingparts and controls7.5 kg (16 lbs. 9 oz.)Design and specifications are
13、subjectto change without notice. FM wire antenna (1) AM loop antenna (1) R6 (size-AA) batteries (2) Remote commander RM-PP505 (remote) (1)Tuning rangeAntenna terminalsIntermediate frequencySensitivityUsable sensitivityS/NHarmonic distortion at 1 kHzSeparationFrequency responseSelectivityTuning range
14、US, Canadian MODELS :Tuning rangeOthers :Tuning rangeAEP, UK MODELS :AntennaIntermediate frequencyUsable sensitivityS/NHarmonic distortionSelectivityInputsOutputsSystemSupplied accessoriesMass (Approx.)DimensionsAC outlets US, Canadian MODELS :Power consumptionUS MODEL :Canadian MODEL :AEP, UK MODEL
15、S :Mexican MODEL :E MODEL :Others :Power requirementsUS, Canadian MODEL :AEP, UK MODELS :E MODEL :Taiwan MODEL :Mexican MODEL :Australian MODEL :MULTI CH IN, CD,DVD/LD, MD/TAPE, TV/SAT,VIDEO 1*,VIDEO 2*, AUX: Sensitivity: 250 mVImpedance: 50 kilohmsS/Na): 96 dB (A, 250 mVb)a) Input short.b) Weighted
16、 network, input level.DVD/LD (coaxial):Sensitivity: Impedance: 75 ohmsS/N: 100 dB (A, 20 kHz LPF) (Optical):Sensitivity: Impedance: S/N: 100 dB (A, 20 kHz LPF)MD/TAPE, (OUT);VIDEO 1*,VIDEO 2* (AUDIOOUT):Voltage: 250 mV,Impedance: 10 kilohmsSUB WOOFER:Voltage: 2 VImpedance: 1 kilohmsPHONES:Accepts lo
17、w- andhigh-impedanceheadphones6 dBDVD/LD, TV/SAT,MD/TAPE*48 kHz (TV/SAT, MD/TAPE OPTICAL IN)96 kHz (DVD/LDOPTICAL IN,COAXIAL IN)Sampling FrequencyEQOutputsInputs (Analog)Inputs (Digital)RadioFans.CN 收音机爱 好者资料库3STR-DE675SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE W
18、ITHMARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSLIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART NUMBERSAPPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY. After correcting the original service problem, perform thefollowing safety checks befo
19、re releasing the set to the customer:Check the antenna terminals, metal trim, “metallized” knobs, screws,and all other exposed metal parts for AC leakage. Check leakage asdescribed below.LEAKAGE The AC leakage from any exposed metal part to earth groundand from all exposed metal parts to any exposed
20、 metal part havinga return to chassis, must not exceed 0.5 mA (500 microamperes).Leakage current can be measured by any one of three methods.1.A commercial leakage tester, such as the Simpson 229 or RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2.A battery-operated AC mil
21、liammeter. The Data Precision 245digital multimeter is suitable for this job.3.Measuring the voltage drop across a resistor by means of aVOM or battery-operated AC voltmeter. The “limit” indicationis 0.75 V, so analog meters must have an accurate low-voltagescale. The Simpson 250 and Sanwa SH-63Trd
22、are examples ofa passive VOM that is suitable. Nearly all battery operateddigital multimeters that have a 2V AC range are suitable. (SeeFig. A)SAFETY CHECK-OUTTo Exposed Metal Parts on Set0.15 F1.5 kACVoltmeter(0.75 V)Earth GroundFig. A. Using an AC voltmeter to check AC leakage.Parts No.MODEL IDENT
23、IFICATION BACK PANEL ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONTCRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NEREMPLACER CES COMPOSANTS QUE PAR DES PISES SONYDONT LES NUMROS SONT DONNS DANS CE MANUEL
24、OUDANS LES SUPPMENTS PUBLIS PAR SONY.PARTS No.4-232-251-0s4-232-251-1s4-232-251-2s4-232-251-3s4-232-251-4s4-232-251-5s4-232-251-6s4-232-251-7s4-232-251-8s4-234-509-0s4-234-509-1s4-234-509-2sMODELUS modelCanadian modelE modelAEP modelUK modelAustralian modelMalaysia, Singapore modelChinese modelTaiwa
25、n modelKorean modelMexican modelArgentina model4STR-DE675TABLE OF CONTENTS1. GENETAL 52. TEST MODE 73. DIAGRAMS3-1.Circuit Boards Location . 93-2.Block Diagrams . 10 Main Section . 10 Power Section . 113-3.Printed Wiring Board Digital Section . 123-4.Schematic Diagram Digital Section (1/3) . 133-5.S
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