Sony-STRDE425-rec-sm 维修电路原理图.pdf

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1、STR-DE425US ModelCanadian ModelAEP ModelUK ModelE ModelAustralian ModelChinese ModelSERVICE MANUALFM STEREO/FM-AM RECEIVERManufactured under license from Dolby LaboratoriesLicensing Corporation.“DOLBY”, “PRO LOGIC” and the double-D symbol aretrademarks of Dolby Laboratories Licensing Corporation.MIC

2、ROFILMSPECIFICATIONSAmplifier sectionPower outputStereo mode(DIN 1 kHz, 4 ohms)90 W + 90 WSurround(DIN 1 kHz, 4 ohms)modeFront: 90W/chCentre: 90W(only in PRO LOG IC MODE)REAR: (DIN 1 kHZ, 8ohms) 45 W/ch5.1/DVDFront: 90 W/chINPUT * mode(DIN 1 kHz, 4 ohms)Centre: 90 W (DIN 1 kHz, 4 ohms)Rear: 45 W/ch

3、(DIN 1 kHz, 8 ohms)FrequencyPHONO: RIAAresponseequalization curve 0.5 dBTV / LD, CD, TAPE / MD,VIDEO, 5.1/DVD INPUT:10Hz - 50kHz 1dBInputSensitivity Impedance S/N(Weightingnetwork,input level)PHONO2.5mV5074 dB(MM)kilohms72 dB*(A, 2.5 mV)CD,5.1/DVD200 mVINPUT*5082 dBTAPE/MD,kilohms82 dB*TV/LD,150 mV(

4、A, 150 mV)VIDEO*78IHFOutputsTAPE/MD REC OUT:Voltage: 150 mV,Impedance: 10 kilohmsVIDEO AUDIO OUT:Voltage: 150 mV,Impedance: 10 kilohmsWOOFER/MIX AUDIOOUT: Voltage: 2VImpedance: 10 kilohmsPHONES: Accepts low and highimpedance headphonesMutingFull muteBASS BOOST+10dB at 70 HzTONE8dB at 100 Hz and 10 k

5、HzFM tuner sectionTuning range87.5 108.0 MHzAerial terminals75 ohms, unbalancedSensitivityMono: 18.3 dBf, 2.2V /75 ohmsStereo: 38.3 dBf, 22.5V /75 ohmsUsable sensitivity11.2 dBf, 1V /75 ohms (IHF)S/NMono: 76 dBStereo: 70dBHarmonicMono: 0.3 %distortion atStereo: 0.5 %1 kHzSeparation45dB at 1 kHzFrequ

6、ency30 Hz 15kHz +0.5 dBresponseSelectivity60 dB at 400 kHz2 Continued on next page AM tuner sectionTuning range531 1602 kHzAerialLoop aerialUsable sensitivity50 dB/m (at 999 kHz)S/N54 dB(at 50 mV/m)Harmonic0.5%(50 mV/m, 400Hz)distortionSelectivity35 dBVideo sectionInputVIDEO 1, 2, TV:1 Vp-p 75 ohmsO

7、utputVIDEO 1, 2, MONITOR:1 Vp-p 75 ohmsGeneralSystemTuner section; PLLquartz-locked digitalsynthesizer systemPreamplifier section:Low-noise NF typeepualizerPower amplifier section:Pure-complimentarySEPPPower230 V AC, 50/60 HzrequirementsPower230 WconsumptionAC outletsSwitched 100 W(except for the U.

8、K.model)RadioFans.CN 收音机爱 好者资料库 2 1.GENERAL 32.TEST MODE43.DIAGRAMS3-1.Circuit Boards Location 53-2.Block Diagram 73-3.Schematic Diagram Display Section 93-4.Printed Wiring Board Display Section 113-5.Schematic Diagram Power Section 133-6.Printed Wiring Board Power Section 153-7.Printed Wiring Board

9、 Main Section 173-8.Schematic Diagram Main Section (1/3) 193-9.Schematic Diagram Main Section (2/3) 213-10. Schematic Diagram Main Section (3/3) 233-11. IC Pin Function Description253-12. IC Block Diagrams 274.EXPLODED VIEWS4-1.Front Panel Section 294-2.Chassis Section305.ELECTRICAL PARTS LIST31TABL

10、E OF CONTENTS 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 A

11、C 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 microampers).Leakage current can be measured by any one of three methods.1.A commercial leakage tester, such as the Simpson 229 or RC

12、AWT-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

13、.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 kAC

14、Voltmeter(0.75 V)Earth GroundFig. A. Using an AC voltmeter to check AC leakage.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITHMARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSLIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART

15、NUMBERSAPPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFS PAR UNE MARQUE ! SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONTCRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NEREMPLACER CES COMPOSANTS QUE PAR DES

16、PISES SONYDONT LES NUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPMENTS PUBLIS PAR SONY.Dimensions430 145 295 mmMass(Approx.)STR-DE425: 7.9 kgSuppliedFM wire aerial (1)accessoriesAM loop aerial (1)Remote controller (remote) (1)Size AA (R6) batteries (2)Design and specifications are subject to chang

17、e without notice.Specifications indicated are measured at 230 VAC, 50 HzRadioFans.CN 收音机爱 好者资料库 3 SECTION 1GENERAL12356789!?!?!?!?!?!?!?!?!?!?#?#?4123457869!?!?!?!?!?!?1 POWER switch (I/u)2 CENTER LEVEL +, buttons3 REAR LEVEL +, buttons4 PRO LOGIC, C.STUDIO, HALL indicators5 5.1/DVD INPUT, BASS BOOS

18、T indicators6 MASTER VOLUME control7 BALANCE control8 TREBLE control9 BASS control! MUTING button/indicator! SURROUND ON/OFF button! SURROUND EFFECT/DELAY, MODE buttons! SET UP, 5.1/DVD INPUT, BASS BOOST buttons! TV/LD button! TAPE/MD button! PHONO button! TUNER button! CD button! VIDEO button Numer

19、ic buttons DIRECT TUNING, SHIFT buttons CHARACTER, DISPLAY buttons MEMORY button FM/AM button PRESET/CHARACTER +, buttons FM MODE button SLEEP button TUNING/PTY SELECT +, buttons RDS PTY, EON buttons# PHONES jack# SPEAKERS A, B ON/OFF buttons1 ANTENNA (FM/AM)2 5.1/DVD INPUT3 y SIGNAL GND4 MONITOR5 W

20、OOFER6 FRONT SPEAKERS (A/B)7 AC OUTLET8 AC power cord9 SURROUND SPEAKERS (CENTER)0 SURROUND SPEAKERS (REAR)! VIDEO! TV/LD! TAPE/MD! CD! PHONOLOCATION AND FUNCTION OF CONTROLSFRONT PANELREAR PANEL 4 SECTION 2TEST MODEINITIALIZATION MODE* All preset contents are cleared when this mode is activated. Us

21、ethis mode before returning the product to clients upon completionof repair.* Procedure:While depressing the VIDEO and the TAPE/MD buttonssimultaneously, press the power I/u button to turn on the mainpower. The message INITIAL appears and initialization isperformed.FLUORESCENT INDICATOR TUBE TEST MO

22、DE* 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/LD and the BASS BOOST buttonssimultaneously, press the power I/u button to turn on the mainpower. All segments t

23、urn on at the same time, then each segmentturns on one after another. The message FINISH appears when thistest is complete.AUTO-BETICAL CHECK MODE* To auto-scanning FM board and memorise RDS station. (FM/RDS model only)* Procedure:While depressing the MEMORY button, press the power I/ubutton to turn

24、 on the main power. The message AUTO BET appearsand each function is selected one after another.AM CHANNEL STEP 9 kHz/10 kHzSELECTION MODE* Either the 9 kHz step or 10 kHz step can be selected for the AMchannel step. (US, CND and E model only)* Procedure:Set the FUNCTION to AM. Turn off the main pow

25、er.While depressing the TUNING+ button, press the power I/u buttonto turn on the main power. Either the message 9k STEP or 10kSTEP appears. Select the desired step.REAR SPEAKER GAIN UP MODE* The rear speaker gain can be set to either NORMAL or GAIN UP.* Procedure:While depressing the -SURROUND- MODE

26、 button, press the powerI/u button to turn on the main power. Either the messageNORMAL or GAIN UP appears. When the product enters thismode again, the other gain appears. Select the desired gain.SOFTWARE VERSION DISPLAY MODE* The software version is displayed.* Procedure:While depressing the TUNER a

27、nd the BASS BOOST buttonssimultaneously, press the power I/u button to turn on the mainpower. The software version is displayed. 5 SECTION 3DIAGRAMS3-1.CIRCUIT BOARDS LOCATIONPRIMARYboardDISPLAYboardSP-SW board10 KEY boardVR-TONE boardVOLUME boardMAIN board VIDEO board STAND BY boardSP-SCREW boardSE

28、CONDARYboard 6 For 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.: internal component. 2 : nonflammable resis

29、tor. 1 : fusible resistor. 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 norm

30、al productiontolerances. Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms. Signal path.F: FM AbbreviationCND: CanadianEE: East EuropeanAUS: AustralianCH: ChineseG: GermanMY: MalaysiaSP: SingaporeTHIS NOTE IS COMMON FOR PRINTED WIRINGBOARDS AND SCHEMATIC DIAGRAMS.(In additi

31、on to this necessary note is printed in eachblock.)For printed wiring boards.Note: X : parts extracted from the component side.: Through hole.: internal component. b : Pattern from the side which enables seeing.Note:The components identified bymark ! or dotted line with mark! are critical for safety

32、.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. Waveform1 IC201 34PIN (X1) 2 IC300 32PIN (OSC)8MHz4.19MHz 5.2Vp-p0.58Vp-pSTR-DE425 7 8 DATAL OUTFMAMR OUTCLKCETUNEDSTEREOT MUIT

33、EDOR CHFM ANT(75)AM ANTSDATASCLKSLATAUTO STOPSTEREOT MUTEDOJ401LRPHONOR CHJ402LRR CHLRR CHJ403LRR CHLRR CHVIDEOINEQ AMPIC402+15VREGIC80128TUNER BLOCKSIGNALSIGDET OUTLRR CHCDLRR CHTV/LDVIDEOOUTTAPEINTAPEOUTJ403VIDEOINCDTV/LDVIDEOOUTTAPEINTAPEOUTJ40230292425262221CL15DI14CE13272320S DATAS CLKSLAT AUDI

34、O SELECTORIC401DATA35 37CLK34 38CE3024L OUT9C OUT22S OUTLT IN453132X3018MHzDATACLKS DATAS CLKSURROUNDPROCESSORIC300J501LRFRONTR CHLRR CHREAR501INPUTCENTERWOOFER5.1 I/PMONITERTV/LDVIDEO 1INOUTJ252J251BASSRV421TREBLERV422DBFBCONTROLQ451,452AMPIC404652122321IC502(1/2)IC302(1/2)IC302(2/2)IC501(1/2)9+15V

35、DI14CL15CE13820411SELECTORIC500S DATS CLKS LAT42161314X14.33MHzRDSIC1MUTEQ361BALANCERV423MUTEQ365MUTEQ363MUTEQ366VOLUMERV404SURROUNDAMPMDOWNUPBIASQ701,Q7021415623VEEVCCIN+VE-VE13 VCCPOWER AMPIC701+B-BPOWERAMPQ703CURRENTDETQ720POWERAMPQ7047165VEEIN+VE-VE9VCCPOWER AMPIC551+B-BPOWERAMPQ553CURRENTDETQ57

36、0POWERAMPQ554SURROUNDAMPIC601WOOFERAMPIC502(2/2)PROTECTORQ721-723RELAYDRIVEQ710RY701J253CS(L)S(R)SURROUNDSPEAKERWOOFERJ741PHONSTM601FRONTSPEAKERTM701R CHLRRELAYDRIVEQ560RY551RELAYDRIVEQ610RY601RELAYDRIVEQ367RY301D321+BD311D728D727D726D725D723D203D724SPEAKER ASPEAKER BONOFFONOFFS701R CHR CHR CHR CHBA

37、8732MOTORDRIVERIC202UPDOWNVIDEO SELECTIC251V312V11MON10V23OUT513S12S24S211MUTES158S257MUTE36SYSTEM CONTROLIC20146RDS DATA454545RDS CLK11PLL DATA40T MUTE19STEREO18AUTO STOP25SIGNAL12S CE9S CLK10S DATA13S CE53LOW BASSDOT MUTESTEREOAUTO STOPSIGS LATS CLKS DATA55MUTE S.L54MUTE FUNC41UP42DOWN16PROTECT21S

38、P RY22SURR RY14REAR RYVERSION56X134X235X2014.198MHzLED SWQ2305.1 CH51HALL39SIMULATED38PROLOGIC37MUTING435.1/VDDMUTINGHALLPROLOGICCSTUDIOLED +5VD235D236D234D237D238FUNCTIONKEYA/D 227A/D 128A/D 326S217-239S241-243S240FUNCTIONKEYS201-216KI 160KI 259S200SYSTEMPOWERSYS POWER4477 72.70 6271.80 78S1 15G1 1

39、0S8-15D221-225FL201FLOURESCENTINDICATOR TUBEF1F2F1F213-15VREGIC80223+9V REGQ808+15V-24V REGQ801+9V-15V+B-B-24VD802T901D803F802F801F901RELAYDRIVEQ809RY801RY852RY851RY801RY901RELAYDRIVEQ802JW335JW336CNJ902US,CND MODELCNJ902EXCEPTUS,CND,UK MODELEXCEPTUS,CND MODELCNP903ACINF902T902STANDBYIC950658DELAY+B

40、 SWQ951D810-813RESETQ201,202REMOTECONTROLRECEIVER213D202D201D901L401LED +5VIC201 +BTUNER/RDS +5V+5.6VIC20315BRIDGE23POWER RY47STOP17RESET49SIRCS1116: FM: CD (ANALOG) Signal Path RCH is omitted: VIDEO: PHONO46LED SWQ231D239BASSBOOSTLED +5VAEP, UK, G, EE MODELEXCEPT AEP, UK, G, EE MODELAEP, UK, G, EE

41、MODELBIASQ551,Q5523-2. BLOCK DIAGRAMSTR-DE425 9 10 3-3. SCHEMATIC DIAGRAM DISPLAY SECTION STR-DE425 11 12 3-4. PRINTED WIRING BOARDS DISPLAY SECTION DISPLAY BOARDVOLUME BOARDVR-TONE BOARD1-669-275-11(11)1-669-278-11(11)1-669-277-11(11)MEMORYDISPLAYEONPTYRDSCHARACTERPRESETCHARACTERFM/AMFM MODESLEEPBA

42、LANCETREBLEMUTINGBASS_+_+TUNINGPTY SELECT_+REAR LEVEL_+CENTER LEVEL1/(PROLOGIC)(C.STUDIO)(HALL)1312514173134 35991141(BASS BOOST)(5.1/DVD INPUT)IC20112425404164658010 KEY BOARD1-669-276-11(11)MODESET UPTAPE/MDPHONOTUNERTUNERSHIFTTV/LDVIDEOCDCDEFFECT/DELAYSURROUNDSURROUNDON/OFFDIRECT TUNINGBASS BOOST

43、5.1/DVD INPUT140987623451ABTO MAIN BOARD CNS501DTO MAIN BOARD CNP501CTO MAIN BOARD CNS701TO MAIN BOARD CNS204BEBEMASTER VOLUMEMBEBBBBBEEEEERD1RD2RD3RD4RD5RD6RD7RD8RD9RD10RD11RD12RD13RD14RD15RD16RD17RD18RD19RD20RD21RD22RD23RD24RD25BEAEP,UK,G,EEMODELAEP,UK,G,EEMODELAEP,UK,G,EEMODELAEP,UK,G,EE,AUS MODE

44、LEXCEPT AEP,UK,G,EEMODELEXCEPT AEP,UK,G,EEMODELAEP,UK,G,EEMODELE,SP,MY,CH,EEMODELE,SP,MY,CH,AUS MODEL16(Page 17)(Page 17)(Page 17)(Page 17)12ABCDEFGHIJ34567891011121314Ref. No.Location Semiconductor LocationRef. No.LocationD201C-4D202C-4D203B-4D204B-4D211A-10D212B-10D213B-10D214B-10D215B-10D216B-10D

45、217B-10D218B-10D221C-9D222C-9D223C-9D224C-9D231B-3D234C-3D235C-12D236B-12D237B-12D239C-3IC201C-7IC202B-2IC203B-11Ref. No.LocationQ201B-4Q202B-5Q230D-9Q231B-3Q361H-2Q362H-2Q363H-2Q364I-1Q365I-2Q366I-1STR-DE425 13 14 3-5. SCHEMATIC DIAGRAM POWER SECTION STR-DE42512ABCDEFGHIJ3456789101112 15 16 3-6. PR

46、INTED WIRING BOARDS POWER SECTION ACINSTAND BY BOARDPRIMARY BOARDSECONDARY BOARDVIDEO BOARDSP-SW BOARDSP-SREW BOARDJTO MAIN BOARD CNS8021-669-279-11(11)1-669-280-11(11)1-669-281-11(11)1-669-283-11(11)1-669-282-11(11)1-669-284-11(11)11122241GTO MAIN BOARD CNP702KTO MAIN BOARD CN706HTO MAIN BOARD CN70

47、7TO MAIN BOARD CNS251ETO MAIN BOARD CN500ITO MAIN BOARD CN801110T901POWERTRANSFORMER12111110148711135582RABLTMS701FRONTSPEAKERSS701-1SPEAKER BJ253WOOFERAUDIO OUTTV/LDVIDEO INMONITORVIDEO OUTCENTER WOOFERVIDEOVIDEO INVIDEO OUTJ741PHONESS701-2SPEAKER ACNJ902AC OUTLETOFFONFLRLRFRONTREARJ501J251J252XAXA

48、 : AEP,UK,G,EE MODELXB : EXCEPT AEP,UK,G,EE MODELXAXAXAXBS701-1S701-2US,CND,AUS MODELEXCEPT US,CND,AUS MODELUS,CNDMODELUS,CNDMODELEXCEPTUS,CND,UKMODELEXCEPTUS,CND MODELF90216(Page 18)(Page 18)(Page 18)(Page 18)(Page 18)(Page 17)(Page 17)Ref. No.LocationD816I-10IC251B-4 SemiconductorLocationSTR-DE425

49、12ABCDEFGHIJ34567891011121314 17 18 3-7. PRINTED WIRING BOARD MAIN SECTION 1-669-274-11(11)GTOSP-SWBOARDCNS705DTOVR-TONEBOARDCN501FTOVIDEOBOARDCNS250BTOVOLUMEBOARDCNS502ACTO DISPLAY BOARD CNS201TO VOLUME BOARD CNS402ETO VIDEO BOARD CNP500JTOSTAND BYBOARDCNP802KTOSP-SWBOARDCNP703/CNP704HTOSP-SCREWBOA

50、RDCNS707ITOSECONDARYBOARDCNP801MAIN BOARD15BEBEEEEB EB B EEB B BEBEBBBEBBEEEEB 15111110 181424558BEEBEEBBEB111530161145889163131511458BEBEBEBBBBBBEEEEEE11115163010914141458585817RLFRONT SPEAKERSTM701REARRLAUDIOINAUDIO OUT AUDIOININRECOUTCDINPHONOINCENTERSURROUND SPEAKERTM601VIDEOTAPE MDTV/LDJ401RLRL