Sony-STRDE475-rec-sm 维修电路原理图.pdf

STR-DE475US ModelCanadian ModelAEP ModelUK ModelAustralian ModelChinese ModelE ModelSERVICE MANUALFM STEREO FM-AM RECEIVERSony CorporationAudio Entertainment GroupGeneral Engineering Dept.9-929-587-112001B1600-1 2001.2 Continued on next page SPECIFICATIONSVer 1.0 2001. 02Manufactured under license from Dolby Laboratories LicensingCorporation.“DOLBY” the double-D symbol ; “AC-3” and “Pro Logic” aretrademarks of Dolby Laboratories Licensing Corporation.OutputsMD/TAPE (OUT):VIDEO (AUDIO OUT):Voltages: 250 mV,Impedance:10 kilohmsSUB WOOFER:Voltage: 2 VImpedance :1 kilohmsPHONES:Accepts low andhigh-impedanceheadphonesTONE6 dB at 100 Hzand 10 kHzSampling frequency48 kHz (OPTICAL IN)96 kHz (COAXIAL IN)FM tuner sectionTuning range87.5 - 108.0 MHzAntenna terminals75 ohms, unbalancedIntermediatefrequency10.7 MHzSensitivityMono: 18.3 dBf,2.2 V/75 ohmsStereo: 38.3 dBf,22.5 V/75 ohmsUsable sensitivity11.2 dBf, 1 V/75 ohmsS/NMono: 76 dBStereo: 70 dBHarmonic distortion at 1 kHzMono: 0.3%Stereo: 0.5%Separation45 dB at 1 kHzFrequency response30 Hz - 15 kHz+0.5/-2 dBSelectivity60 dB at 400 kHzAUDIO POWERSPECIFICATIONSPOWER OUTPUT ANDTOTAL HARMONICDISTORTION:With 8 ohm loads, bothchannels driven, from 40 -20,000 Hz; rated 80 wattsper channel minimum RMSpower, with no more than0.09% total harmonicdistortion from 250milliwatts to rated output(USA model only).Amplifier sectionPOWER OUTPUTUS, Canadian :Rated Power Output at Stereo mode(8 ohms 40 Hz - 20 kHz, THD 0.09%)80 W + 80 WUS, Canadian, AEP, UK :Reference Power Output(8 ohms 1 kHz, THD 0.7%)Front1): 80 W/chCenter1): 80 WSurround1): 80 W/chEXCEPT :EXCEPT :Rated Power Output at Stereo mode(8 ohms 1kHz, THD 0.7%)80 W + 80 W 2)Reference Power Output2)(8 ohms 1 kHz, THD 10%)Front1):90 W/chCenter1): 90 WSurround1):90 W/ch1) Depending on the sound field settings andthe sources, there may be no sound output.2) Measured under the following conditions:Area codePower requirementE, Australian240 V AC, 50 HzChinese230 V AC, 50 HzTaiwan110 V AC, 50 HzFrequency responseMULTI CH IN, CD,MD/TAPE, DVD/LD,TV/SAT, VIDEO:20 Hz 20 kHz0/ 0.5 dB (sound field,and tone bypassed)Inputs (Analog)MULTI CH IN, CD,MD/TAPE, DVD/LD,TV/SAT, VIDEO:Sensitivity: 250 mVImpedance:50 kilohmsS/N3): 85 dB(A, 250 mV4)3) INPUT SHORT4) Weighted network, input levelInputs (Digital)DVD/LD (coaxial):Sensitivity: Impedance: 75 ohmsS/N: 100 dB(A, 20 kHz LPF)TV/SAT (Optical):Sensitivity: Impedance: S/N: 100 dB(A, 20 kHz LPF)RadioFans.CN 收音机爱 好者资料库2STR-DE475MODEL IDENTIFICATION BACK PANEL Parts No.MODELPARTS No.US4-233-753-0sCanadian4-233-753-1sAustralian4-233-753-2sChinese4-233-753-4sE, Taiwan4-233-753-5sAEP4-233-753-6sUK4-233-753-7sMexican4-233-753-8sArgentina4-233-753-9sAM tuner sectionTuning rangeUS, Canadian :With 10-kHz tuningscale:530 - 1710 kHz5)With 9-kHz tuningscale:531 - 1710 kHz5)Australian, Chinese, AEP, UK :With 9 kHz tuningscale:531 - 1602 kHzE, Taiwan :With 10-kHz tuningscale:530-1610 kHz5)With 9-kHz tuningscale:531-1602 kHz5)AntennaLoop antennaIntermediate 450 kHzfrequencyUsable sensitivity50 dB/m (at 1,000 kHzor 999 kHz)S/N54 dB (at 50mV/m)Harmonic distortion0.5% (50mV/m, 400kHz)Selectivity:At 9 kHz: 35 dBAt 10 kHz: 40 dB5) You can change the AM tuning scale to 9kHz 10 kHz. After tuning in any AMstation, turn off the receiver. Hold down theTUNING + button and press the button. All preset stations will be erasedwhen you change the tuning scale. To resetthe scale to 10 kHz (or 9 kHz), repeat theprocedure.Video sectionInputsVideo: 1 Vp-p 75 ohmsOutputsVideo: 1 Vp-p 75 ohmsGeneralSystemTuner section:PLL quartz-lockeddigital synthesizersystemPreamplifier section:Low-noise NF typeequalizerPower amplifiersection:Pure-complementarySEPPPower requirementsUS, Canadian :120 V AC, 60 HzChinese :CN220 -230 V AC,50/60 HzAustralian :240 V AC, 50 HzE :120/220/240 V AC,50/60 HzTaiwan :AEP, UK :1230 V AC, 50/60 Hz10 V AC, 50/60 HzPower consumptionUS :185 WIn StandbyCondition:1 WCanadian :280 VAIn StandbyCondition:1 WE, Chinese, Taiwan, AEP, UK :175 WIn StandbyCondition:1 WAustralian :165 WIn StandbyCondition: 1 WDimensions 430 145 298 mm(17 7 7/8 195/8 in.)including projectingparts and controlsMass (Approx.)7.2 kg (15 lb 14 oz)Supplied accessoriesDesign and specifications are subjectto change without notice. FM wire antenna (1) AM loop antenna (1) R6 (size-AA) batteries (2) Remote Commander (remote) (1)RadioFans.CN 收音机爱 好者资料库3STR-DE475SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITHMARK 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 before 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 ground andfrom all exposed metal parts to any exposed metal part having areturn 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 milliammeter. 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 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.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 OUDANS LES SUPPMENTS PUBLIS PAR SONY.TABLE OF CONTENTS1. GENERAL 42. TEST MODE 63. DIAGRAMS3-1.Circuit Boards Location 83-2.Block Diagram Main Section 93-3.Block Diagram Display Section 103-4.Schematic Diagram Main Section (1/3) 113-5.Schematic Diagram Main Section (2/3) 123-6.Schematic Diagram Main Section (3/3) 133-7.Printed Wiring Board Main Section 143-8.Schematic Diagram Digital Section 153-9.Printed Wiring Board Digital Section 163-10. Schematic Diagram Display Section 173-11. Printed Wiring Board Display Section 183-12. Schematic Diagram Video Section 193-13. Printed Wiring Board Power Section 203-14. Printed Wiring Board Video Section 203-15. IC Block Diagrams 213-16. IC Pin Function Description 234. EXPLODED VIEWS 255. ELECTRICAL PARTS LIST 274STR-DE475SECTION 1GENERALThis section is extractedfrom instruction manual.5STR-DE4756STR-DE475SECTION 2TEST MODESOFTWARE VERSION DISPLAY MODE* The software version is displayed.* Procedure:While depressing the TUNER and the VIDEO buttonssimultaneously, press the power ?/1 button to turn on the mainpower. The model name, destination and the software version aredisplayed.FLUORESCENT INDICATOR TUBE TEST MODE* All fluorescent segments are tested. When this test is activated,all segments turn on at the same time, then each segment turns onone after another.* Procedure:While depressing the TV/SAT and the DVD/LD buttonssimultaneously, press the power ?/1 button to turn on the mainpower.1.All segments turn on.NAME , SURR and SOUND FIELD MODE LED turn on.2.Press the VIDEO button, confirm displayDigital Cinema Sound, SET UP and 2CH LED turn on.3.Press the VIDEO button, confirm displayMULTI CHANNEL DECODING(blue), LEVEL and A.F.DLED turn on.4.Press the VIDEO button, All segments turn off.5.Every pressing of the VIDEO button turns on each segment andLED one after another in the same order.(Not only the VIDEO button, but also the other buttons such asDVD/LD , TV/SAT , MD/TAPE , CD , TUNER can be used.)FACTORY SET MODE* All preset contents are reset to the default setting.* Procedure:While depressing the VIDEO and the CD buttons simultaneously,press the power ?/1 button to turn on the main power. Themessage FACTORY appears and switch off the set.While depressing the VIDEO and the CD buttons simultaneously,press the power ?/1 button again. The message FACTORYappears and the present contents are reset to the default values.SOUND FIELD CLEAR MODE* The preset sound field is cleared when this mode is activated.Use this mode before returning the product to clients uponcompletion of repair.* Procedure:While depressing the SOUND FIELD MODE button, press thepower ?/1 button to turn on the main power. The messageS. F. CLR appears and initialization is performed.AM CHANNEL STEP 9 kHz/10 kHzSELECTION MODE* Either the 9 kHz step or 10 kHz step can be selected for the AMchannel step.* Procedure:Set the FUNCTION to AM. Turn off the main power.While depressing the TUNING+ button or thePRESET TUNING+ button, press the power ?/1 button to turnon the main power. Either the message 9 k STEP or 10 k STEPappears. Select the desired step.* For US/Canadian/E model onlyKEY CHECK MODE* Button check* Procedure:While depressing the SURR and the A.F.D buttons simultaneously,press the power ?/1 button to turn on the main power.“REST 36” appears.Every pressing of any button other than ?/1 counts down thebuttons. The buttons which are already counted once are notcounted again. When all buttons are pressed “REST 00” appears.When MASTER VOLUME is rotated in clockwise direction,“VOL MIN”, “VOL 1” to “VOL 30”, “VOL MAX” appear.SWLSLCRSSRSLEEPSP.OFF( ( ( L F E ) ) )DIGITALOPTCOAX MULTI CH INPRO LOGICDTS MPEGSTEREOMONORDSMEMORYMUTINGINFONEWSTAEQD.RANGEDDdBkHzmft.MHzSWLRSSLEEP L F E COAXPRO LOGICMPEGSTEREORDSMUTINGINFOTAD.RANGEDDk m MHzSLCSRSP.OFF( ( ( ) ) )DIGITALOPTMULTI CH INDTSMONOMEMORYNEWSEQdB Hz ft.7STR-DE475SECTION 3DIAGRAMSFor schematic diagrams.Note: All capacitors are in F unless otherwise noted. pF: F50 WV or less are not indicated except for electrolyticsand tantalums. All resistors are in and 1/4 W or less unless otherwisespecified.%: indicates tolerance.f: internal component. 2 : nonflammable resistor. 1 : fusible resistor. C : panel designation. A : B+ Line. B : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect to groundunder no-signal (detuned) conditions.No mark : FM Voltages are taken with a VOM (Input impedance 10 M).Voltage variations may be noted due to normal productiontolerances. Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms. Signal path.F: FMf : CD AbbreviationCND: Canadian model.AUS: Australian model.AR: Argentine model.CH: Chinese model.MX: Mexican model.THIS NOTE IS COMMON FOR PRINTED WIRINGBOARDS AND SCHEMATIC DIAGRAMS.(In addition to this necessary note is printed in eachblock.)Note:The components identified bymark ! or dotted line with mark! are critical for safety.Replace only with part numberspecified.Note:Les composants identifis parune marque ! sont critiquespour la scurit.Ne les remplacer que par unepice portant le numro spcifi. Waveform MAIN BOARD DISPLAY BOARD DIGITAL BOARD For printed wiring boards.Note: X : parts extracted from the component side.a: Through hole.f: internal component. b : Pattern from the side which enables seeing.CBThese are omitted.EQBThese are omitted.CE1 IC301 qf 2.2Vp-p230ns2 IC102 id 5.8Vp-p63ns3 IC1005 7 5.8Vp-p81ns8STR-DE4753-1. CIRCUIT BOARDS LOCATIONSTANDBY boardAC SELECT boardPOWER SW boardHP boardDISPLAY boardMAIN boardVIDEO boardDIGITAL board99STR-DE4753-2. BLOCK DIAGRAM MAIN SECTION TUNER UNIT Signal Path R-CH is omitted due to same as L-CH.: FM: CDFMAMR-CHS DATAPLL DATAS CLKS LATSTEREOAUTO STOPS DATADATA OUTS CLKS LATSIGNALSTEREOTUNEDT MUTINGT MUTINGFMAM DET OUTR OUTL OUTCD INMD/TAPE OUTDVD/LDAUDIO INVIDEOAUDIO OUTVIDEOAUDIO INFRONTSURROUNDCENTERSUB WOOFERJ50124141613X3014.33MHzRDSIC301AEP,UK MODELPROC.IC201IN G263IN B270REC OUT 2A61IN C269IN E267REC OUT 2B6249L OUTIN D26843SL OUT37C OUT28SW CH OUTMUTINGQ361DATA32CLOCK31LATCH33DATACLOCKS CEMUTINGQ362MUTINGQ363MUTINGQ364J1004J1006VIDEOVIDEO INMONITORVIDEO OUTMOUT10V112OUT5V23V312S113S24M211M1VIDEO SELECTIC101566AUTO STOPS175S276VIDEO MUTING746567STEREO 62TUNER DATA IN60TUNER DATA OUT61TUNER CLK59TUNER LAT53RDS CLK48RDS DATA79M CLK80M CE78M DATAAUTO STOPT MUTINGT MUTINGSTEREODATAS DATAS CLKS LATCLOCKS CEDATASYSTEM CONTROLIC102(1/2)TV/SATAUDIO INJ401J402MD/TAPE INJ40331IC401(1/2)DIGITALDVD/LD INJ1001IR LINKDETIC1002DIGITALTV/SAT IN3562IC1003DIGITAL AUDIOI/F RECEIVERIC1004LDIN03DIN14DO35DI36CLK38CE37ERROR34XSTATE17XMODE4812.288M22DIR DODIR DIDIR CLKDIR CEDIR ERRORDIR XSTATEDIR MODE13MCLK14BCK15LRCK16DATAOIC100317IC1005X110112.288MHz62IC1005AUDIO DSPIC1006SDIA185SDIA084SO67SI68SCK69CS66CSB65IC62XI8DSP SO47SBOB046SBOB145SBOB2SDBCK083SDWCK082DSP SIDSP CLKDSP CSDSP CSBDSP IC35IC1005IC1007SRAMAUDIO CODECIC1008MCLK39CDT143CCLK42DIF0/CSN41DFS11PDN17SMUTE3CODEC CDT127L OUT1BCK4LRCK5SDTO9SDTI16SDTI27SDTI38CODEC CLKCODEC CSCODEC DFSCODEC MUTINGCODEC PD57IC4023L OUT231IC40323L OUT331IC40424R OUT357IC404LIN+30LIN-2921IC120167IC1201ANALOG SOUNDIN F266SW CH N IN27SL504438SEL OUT260TIN258453926L CH N INSL CH N INC CH N INSLCSWDOUT259SL CH D INC CH D INSW CH D INA44RDS SIGNAL89VIDEOVIDEO OUTDVD/LDVIDEO INTV/SATVIDEO IN-5VREG32-5VIC1014-12VAEP, UK MODEL90 92 91 95 96 9394DIR DODIR D1DIR CLKDIR CEDIR ERRDIR XSTATEDIR XMODEDIR DATA024DSP SODIR DODIR D1DIR CLKDIR CEDIR ERRDIR XSTATEDIR XMODE22DSP SI21DSP CLK25DSP CS99DSP CSB100DSP IC69CODEC CDT1DSP SODSP SIDSP CLKDSP CSDSP CSBDSP IC68CODEC CLK73CODEC CS70CODEC DFS71CODEC PD72CODEC MUTING98ANA/DIGCODEC CDT1CODEC CLKCODEC CSCODEC DFSCODEC PDCODEC MUTINGMUTINGCONTQ103,10488SYSTEM MUTINGMUTINGSWITCHQ37949MD050MD151MD219FLASH 120FLASH 2MD0VDDMD2FLASH 1FLASH 2RESET+5.6VCNS105BUS MODEL+5VREG31+5VIC1009+9.2V+5VREG31+5VIC1011+5VREG31+5VIC1013+3.3VREG31+3.3VIC1010MULTI CH INANTENNA1010STR-DE4753-3. BLOCK DIAGRAM DISPLAY SECTION RESETQ100,101Q659 Signal Path R-CH is omitted due to same as L-CH.: FMIN2812+V OUT2POWER AMPIC7019NF2LIMITERQ70111-V OUT2LIMITERQ702BOOSTERQ703BOOSTERQ704CURRENTDETECTQ705,706OVER LOADDETECTQ708,709IN162+V OUT15NF1LIMITERQ6513-V OUT1LIMITERQ652BOOSTERQ653BOOSTERQ654CURRENTDETECTQ655,656IN+16+V OUTPOWER AMPIC5012IN-LIMITERQ5015-V OUTLIMITERQ502BOOSTERQ503BOOSTERQ504CURRENTDETECTQ505,506OVER LOADDETECTQ507,509OVER LOADDETECTQ657,658Q707D706D606D506D721PROTECTSWITCHQ722,723,725RELAYDRIVEQ791RY791RELAYDRIVEQ730RY730D731RELAYDRIVEQ610RY601D735RELAYDRIVEQ550RY550D734IC401(2/2)57RELAYDRIVEQ560RY560D736LRSRSLCR-CHR-CHR-CHSPEAKERSFRONTPHONESSPEAKERSSURROUNDSPEAKERSCENTERTM601TM602J25358PROTECT15H/P RY10SP A RY14REAR RY12CTR RY13WOOFER RYLED DRIVEQ008RV102VOL ENCODER13VOL A1VOL B2PW KEY IN56PO