Sony-STRDE245-rec-sm 维修电路原理图.pdf

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1、STR-DE245/DE345AEP ModelUK ModelE ModelAustralian ModelSTR-DE245/DE345US ModelCanadian ModelChinese ModelPX ModelSTR-DE345SERVICE MANUALFM STEREO FM-AM RECEIVERSPECIFICATIONSManufactured under license from Dolby Laboratories LicensingCorporation.“DOLBY” the double-D symbol ; “AC-3” and “Pro Logic” a

2、retrademarks of Dolby Laboratories Licensing Corporation.Photo: STR-DE345 Continued on next page POWER OUTPUT AND TOTAL HARMONICDISTORTIONWith 8-ohm load, both channels driven, from 20 20,000 Hz rated 100 watts per channel minimumRMS power, with no more than 0.09% totalharmonic distortion from 250 m

3、illiwatts to ratedoutput.Amplifier sectionRated Power Output at(8 at 20 Hz 20 kHz,Stereo ModeTHD 0.09 %)100W + 100WReference Power Output(8 at 1 kHz, THD 0.7%)Front: 100 W + 100 WCenter: 100 WRear: 100 W + 100 WFrequency responseTV/SAT, CD, MD/TAPE,VIDEO, 5.1CH/DVD10 50 kHz dBInputsSensitivityImpeda

4、nceS/NCD,5.1CH/DVD,MD/TAPE,150 mV5085 dBTV/SAT,kilohmsVIDEOOutputsMD/TAPE REC OUT: Voltage: 150 mV, Impedance: 10 kilohmsVIDEO AUDIO OUT: Voltage: 150 mV, Impedance: 10 kilohmsSUB WOOFER: Voltage: 2 V Impedance: 1 kilohmsPHONES: Accepts low and high impedance headphonesMutingFull muteBASS BOOST+6 dB

5、 at 70 HzTONE6 dB at 100 Hz and10 kHzTuner sectionFM Stereo, FM/AM superheterodyne tunerFM tuner sectionTuning range87.5 108.0 MHzAntenna terminals75 , unbalancedIntermediate frequency10.7 MHzSensitivityMono: 18.3 dBf, 4.5 VStereo: 38.3 dBf, 45 VUsable sensitivity11.2 dBf, 2 V (IHF)S/NMono: 76 dBSte

6、reo: 70 dBHarmonicMono: 0.3 %distortion at 1 kHzStereo: 0.5 %Separation45 dB at 1 kHzFrequency response30 Hz 15 kHz dBSelectivity60 dB at 400 kHz+0.52.0+0.52.0AM tuner sectionTuning range10 kHz interval* 530 1,710 kHz9 kHz interval 531 1,710 kHzAntennaLoop antennaIntermediate frequency450 kHzUsable

7、sensitivity50 dB/m (at 1,000 kHzor 999 kHz)S/N54 dB (at 50 mV/m)Harmonic distortion0.5 % (50 mV/m, 400Hz)SelectivityAt 10 kHz: 40 dBAt 9 kHz: 35 dB* You can change the AM tuning interval between 9kHz and 10 kHz. Turn off the receiver and pressthe ?/1 (power) for more than 4 seconds until“INITIAL” ap

8、pears.1) After turning in any AM station, turn off thereceiver.2) Hold down PRESET TUNING + button andpress the ?/1 (power) button .“9 k STEP” appears.To change to 10 k Step, repeat step 1 and 2until “10 k STEP” appears. Note that all presetstations, index names and sound field arecleared after you

9、make the procedure above.Ver 1.0 2000. 02RadioFans.CN 收音机爱 好者资料库2VIDEO sectionInputsVIDEO, TV/SAT, 5.1CH/DVD: 1 Vp-p 75 OutputsVIDEO, MONITOR: 1 Vp-p 75 GeneralSystemTuner section: PLL quartz-locked digital synthesizer systemPreamplifier section: Low-noise NF type equalizerPower amplifier section: P

10、ure-complementary SEPPPower requirements120 V AC, 60 HzPower consumption235 WDimensions17 56/8 12 inches)(430 145 304 mm)Mass (Aporox.)7.3 kg (16 lb 2 oz)Supplid accessoriesFM wire antenna (1)AM loop antenna (1)Remote commander (remote) (1)Size AA (R6) batteries (2)Operating Instructions of the remo

11、te RM-PP404Design and specifications are subject to change without notice.MODEL IDENTIFICATION BACK PANEL Parts No.MODELPARTS No.DE345: US model4-226-462-0sDE345: Canadian model4-226-462-1sDE345: Australian model4-226-462-2sDE345: Singapore, Malaysia model4-226-462-3sDE345: Chinese model4-226-462-4s

12、DE345: E, Saudi Arabia, PX model4-226-462-5sDE345: AEP model4-226-462-6sDE345: Russian, East European model4-226-462-7sDE345: Mexican model4-226-462-8sDE345: Argentine model4-226-462-9sDE245: Australian model4-226-468-2sDE245: Singapore, Malaysia model4-226-468-3sDE245: E, Saudi Arabia model4-226-46

13、8-4sDE245: AEP, UK model4-226-468-5sDE245: Mexican, Russian, East European model4-226-468-6sRadioFans.CN 收音机爱 好者资料库3SAFETY-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 THESEC

14、OMPONENTS 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, screw

15、s,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

16、 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 dr

17、op 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

18、 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

19、 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. Block Diagram 73-2. IC Block Diagrams 83-3. IC P

20、in Function Description 83-4. Circuit Boards Location 93-5. Printed Wiring Board Main Section 103-6. Schematic Diagram Main Section (1/3) 113-7. Schematic Diagram Main Section (2/3) 123-8. Schematic Diagram Main Section (3/3) 133-9. Printed Wiring Board Panel Section 143-10.Schematic Diagram Panel S

21、ection 153-11.Printed Wiring Board Power Section 163-12.Schematic Diagram Power Section 173-13.Printed Wiring Board Video Section 183-14.Schematic Diagram Video Section 184. EXPLODED VIEWS4-1. Front Panel Section 194-2. Chassis Section 205. ELECTRICAL PARTS LIST 214SECTION 1GENERALFront Panel1qs 456

22、789qa23 01 I/1 (POWER) button2 SPEAKERS ON/OFF SWITCH button3 PHONE jack4 VIDEO buttonTV/SAT button5.1CH/DVD buttonMD/TAPE buttonCD buttonTUNER button5 SOUND FIELD ON/OFF,MODE + , buttonsBASS + , buttonsTREBLE + , buttons6 MENU , + , buttons7 MASTER VOLUME control8 MUTING buttonBASS BOOST botton9 PR

23、ESET/PTY SELECT + , buttonsTUNING + , buttonsFM/AM buttonFM MODE buttonSHIFT buttonMEMORY button0 SET UP buttonNAME buttonENTER buttonqa SOUND CONTROL LEVEL,SUR buttonsqs DIMMER buttonDISPLAY button5Rear PanelThis section is extractedfrom instruction manual.6SECTION 2TEST MODESOFTWARE VERSION DISPLA

24、Y 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

25、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 CD buttons simultaneously,press the power ?/1 button to turn on the main power.1.All segments turn on.SET UP, SOUND FIELD, BASS B

26、OOST and MUTING LEDturn on.2.Press the VIDEO button, confirm displayBASS BOOST, MUTING, SET UP and NAME LED turn on.3.Press the VIDEO button, confirm displaySOUND CONTROL LEVEL, SOUND CONTROL SUR andSOUND FIELD LED turn on.4.Press the VIDEO button, All segments turn off.5.Every pressing of the VIDEO

27、 button turns on each segment oneafter another in the following order.(Not only the VIDEO button, but also the other buttons such asTV/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

28、 simultaneously,press the power ?/1 button to turn on the main power. Themessage FACTORY appears and the present contents are reset tothe default values.ALL CLEAR MODE* All preset contents are cleared when this mode is activated. Usethis mode before returning the product to clients upon completionof

29、 repair.* Procedure:While depressing the TUNER and the MD/TAPE buttonssimultaneously, press the power ?/1 button to turn on the mainpower. The message INITIAL appears and initialization isperformed.SURROUND CLEAR MODE* The preset sound field is cleared when this mode is activated.Use this mode befor

30、e returning the product to clients uponcompletion of repair.* Procedure:While depressing the SOUND FIELD ON/OFF button, press thepower ?/1 button to turn on the main power. The messageSURR CLR appears and initialization is performed.AM CHANNEL STEP 9 kHz/10 kHzSELECTION MODE* Either the 9 kHz step o

31、r 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 the PRESET+ button,press the power ?/1 button to turn on the main power. Eitherthe message AM 9 k STEP or AM 10 k STEP appears. Select thedesired st

32、ep.* For US/Canadian/E model onlyKEY CHECK MODE* Button check* Procedure:While depressing the MD/TAPE and the CD buttonssimultaneously, press the power ?/1 button to turn on the mainpower.“RES 36 KEY” appears.Every pressing of any button other than ?/1 and SPEAKERScounts down the buttons. The button

33、s which are already countedonce are not counted again. When all buttons are pressed “RES00 KEY” appears.When MASTER VOLUME is rotated in clockwise direction,“VOL MIN”, “VOL 1” to “VOL 30”, “VOL MAX” appear.77SECTION 3DIAGRAMS3-1. BLOCK DIAGRAMTUNER UNITRESETQ201,202Q659: VIDEO Signal Path RCH is omi

34、tted: FM: CDFMAMR-CHS DATAPLL DATAS CLKS CESIGNALSTEREOAUTO STOPT MUTES DATADATA OUTS CLKSLATSIGNALSTEREOTUNEDT MUTEFMAM DET OUTR OUTL OUTMD/TAPECDOUTPUTINPUTOUTPUTINPUTVIDEO5.1CH/DVDFRONTREARCENTERWOOFERJ501J401LT IN61FC L IN34FC SL IN32FC C IN62DATA52DOLBYSURROUND PROCESSORIC20216L OUTCLK53ENABLE5

35、1218SL OUT10C OUTDATACLK4141613X14.33MHzRDSIC1AEP,UK,Russian, East European MODELAUDIO SELECTIC201IN F266IN A271REC OUT 2A61IN B270IN G263SW CH N IN27D OUT25949L OUTREC OUT 2B6143SL OUT37C OUT28SW CH OUTMUTEQ361SEL OUT260T IN258SL CH N IN44DATA32CLOCK31LATCH33SL CH D IN45C CH N IN38C CH D IN39DATACL

36、OCKS CEMUTEQ362MUTEQ363MUTEQ364IN162+V OUT1POWER AMPIC7015NF1LIMITERQ7013-V OUT1LIMITERQ702BOOSTERQ703BOOSTERQ704CURRENTDETECTQ705,706OVER LOADDETECTQ708,709IN2812+V OUT29NF2LIMITERQ65111-V OUT1LIMITERQ652BOOSTERQ653BOOSTERQ654CURRENTDETECTQ655,656IN+16+V OUTPOWER AMPIC5012IN-LIMITERQ5015-V OUTLIMIT

37、ERQ502BOOSTERQ503BOOSTERQ504CURRENTDETECTQ505,506OVER LOADDETECTQ507,509OVER LOADDETECTQ657,658Q707D706D606D506D721PROTECTSWITCHQ722,723,725RELAYDRIVEQ791RY791RELAYDRIVEQ730RY710D731RELAYDRIVEQ610RY610D735RELAYDRIVEQ550RY510D734IC40131RELAYDRIVEQ470RY470D736LRSRSLCR-CHR-CHR-CHSPEAKERSFRONTPHONESSPEA

38、KERSREARSPEAKERSCENTERTM601TM602SUBWOOFERJ4035.1CH(VIDEO IN)TV/LD5.1 INJ281INOUTOUTJ282VIDEO1MONITORDE345 MODELV312V11OUT5V23M OUT1013S12S24S211MVIDEO SELECTIC28121AUTO STOPS12S23IC MUTE422T MUTE23STEREO IN28SIGNAL24PLL DATA19S DATA18S CLK20S CE38RDS CLK15RDS DATA8S CLK9S CE17S CE7S DATA59FUNC MUTE4

39、7PROTECTAUTO STOPT MUTESTEREOSIGNALPLL DATAS DATAS CLKS CECLOCKS CEDATA54H/P RY53FRONT RY51REAR RY52CTR RY55WOOFER RY100 9133 30A/D1A/D4FUNCTIONKEYS206-235S236,237CE MODEL ONLYLED DRIVEQ126MUTING LED45S FIELD LED68B.B LED69SURR LED66LEVEL LED65NAME LED64SETUP LED63LED DRIVEQ210-215D216MUTINGD210-215

40、SYSTEM CONTROLIC103RV201ENCODER23ENCODER50ENCODER49SYS POWER56SP SW61SYSTEMPOWERS200SPS201ONOFF90 8078 75.DIG1-10S1-S15FLUORESCENTINDICATOR TUBEF1F2FL20110RESET39STOP26SIRCSREMOTECONTROLRECEIVER21IC203POWERCONTROLIC9505836+5.6V REGQ951D201D202D910-913ACINT972RY901D915D914RELAYDRIVEQ470D820-82346VDD3

41、4VDD16VDD1VDD-7VREG32+7VREG31+5VREG31+5VREG31+9VREG31DOLBY SURR+9VDISPLAY+5V(A)AUDIO+7VAUDIO-7VTUNER,RDSAUDIO+5V(B)IC805IC803IC804IC807IC802POWER RY48RELAY+B+12VREG31POWER AMP+12VIC801-24V REGQ801FL201-24V-B SWQ715POWER AMP-BD824D802T901POWER AMP+B240V220V120V0VVOLTAGESELECTORE,Saudi Arabia,PX MODEL

42、S9011211X1X2X2015.00MHz16F1F2883-2. IC BLOCK DIAGRAMSIC281NJM2279 (VIDEO BOARD)VIN3V-14SW213VIN112MUTE111VOUT110NC9V+81SW12AMPVIN23MUTE24VOUT25GND26GND17AMPIC701, IC702uPC2581V (MAIN BOARD)PROTECTORDRIVE123456789 10 11 12 13 14 15PREDRIVEPREDRIVEBIAS CIRCUITREGMUTE+VOUT1VOUT1COMP1NF1IN1GNDIN2NF2COMP

43、2VOUT2+VOUT2VCC1VCC2VEEDRIVEIC501STK350-230 (MAIN BOARD)123456789TR3R1R2TR4TR6TR7R4R9TR5TR1TR2R6D4 D3R7R8TR8D1 D2R5R3INPUTNF-VEOUT+VEOUTVSSGNDVCCSUBIC1BU1924 (MAIN BAORD)12345678910111213141516QUALRDATAVREFVDD1VSS1MUXVSS3CMPRCLKXOXI(NC)VDD2VSS2T1T28TH SWITCHEDCAPACITORFILTERPLL 57KHzRDS/ARIBIPHASEDE

44、CODERDEFFERENTIALDECODERPLL1187.5HzTESTCLOCKIC950NJM2103 (POWER BOARD)12345678V+VSB/SESINVSARESETGNDOUTCVSCCRVREF+QRS3-3. IC PIN FUNCTION DESCRIPTIONIC103 PD780205GF (DISPLAY BOARD)Pin No.1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950I/OIOOOOOOIIOOOOIOIII

45、IIIIIIIIOIOIIDescriptionPower supply to -comControl Video IC switchingControl Video IC switchingControl mute of Video ICVolume IC dataVolume IC clockVolume IC enableRead -com reset signalFor -com clockProgramming pow. supplyNo useRead decoded RDS dataPower supply to -comChip enable for ICsOutput clo

46、ck signalOutput data signalChip enable for ICsTuner has tuned to a freq.Mute tuner during scanningTuned freq. has stereoInput tuner freq. dataAnalog groundRead remote comm. signalDetect RDS signal levelRead version settingRead key push signalRead key push signalRead key push signalRead key push sign

47、alAnalog Power SupplyAnalog reference groundRead decoded RDS clockRead signal when AC off-com groundControl mute LEDPower supply to -comDetect Protector StatusControl Power relayRead volume encoder changingRead volume encoder changingPin NameVDD +5VS1S2IC.MUTEP34P33S.DATA (M61501FP)S.CLK (M61501FP)S

48、.CE (M61501FP)RESETX2X1VSSRDS.DATA.INVDD +5VS.CE (LV1050M)S.CLK(DOLBY.TUNER)S.DATA(DOLBY.TUNER)S.CE (TUNER)AUTO-STOPT.MUTESTEREO-INPLL.DATAAVSSSIRCSP16SIGNALVERSIONA/D IVA/D IIIA/D IIA/D IAVDD +5.0VAVREFP03P02RDS.CLK.INSTOPVSSP74P73P72P71MUTING LEDVDD +5.0VPROTECTPOWER-RYENCODERENCODER99For schemati

49、c 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.

50、 C : panel designation. U : B+ Line. V : 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. W