Sony-STRDE225-rec-sm 维修电路原理图.pdf

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1、STR-DE225/DE325AEP ModelCanadian ModelSTR-DE225/DE325US ModelE ModelAustralian ModelChinese ModelSTR-DE325UK ModelSTR-DE225SERVICE MANUALFM STEREO/FM-AM RECEIVERManufactured under license from Dolby LaboratoriesLicensing Corporation.“DOLBY”, “PRO LOGIC” and the double-D symbol aretrademarks of Dolby

2、 Laboratories Licensing Corporation.MICROFILMSPECIFICATIONSPhoto : STR-DE225Amplifier sectionPower outputStereo mode(DIN 1 kHz, 4 ohms)STR-DE325: 90 W + 90 WSTR-DE225: 40 W + 40 WSurround(DIN 1 kHz, 4 ohms)modeFront:STR-DE325: 90W/chSTR-DE225: 40W/chCentre: STR-DE325: 90WSTR-DE225: 40W(only in PRO L

3、OG IC MODE)REAR: STR-DE325:(DIN 1 kHz, 4ohms) 90 WSTR-DE225: (DIN 1 kHz,4ohms) 40 W5.1/DVDFront: 90 W/chINPUT * mode(DIN 1 kHz, 4 ohms)Centre: 90 W(DIN 1 kHz, 4 ohms)Rear: 45 W/ch(DIN 1 kHz, 8 ohms)(except STR-DE225)FrequencyPHONO: RIAA(except STR-DE225)responseequalization curve 0.5 dBTV / LD, CD,

4、TAPE / MD,VIDEO, 5.1/DVD INPUT*:10Hz - 50kHz 1dBInputSensitivity Impedance S/N(Weightingnetwork,input level)PHONO5074 dB(STR-DE325)2.5mVkilohms72 dB*(MM)(A, 2.5 mV)CD,5.1/DVD200 mVINPUT*5082 dBTAPE/MD,kilohms82 dB*TV/LD,VIDEO*78IHFOutputsTAPE/MD REC OUT:Voltage: 150 mV,Impedance: 10 kilohmsVIDEO AUD

5、IO 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 kHzFM tuner sectionTuning range87.5 108.0 MHzAerial terminals75 ohms, unbalancedSensitivity

6、Mono: 18.3 dBf, 2.2V /75 ohmsStereo: 38.3 dBf, 22.5V /75ohmsUsable sensitivity11.2 dBf, 1V /75 ohms (IHF)S/NMono: 76 dBStereo: 70dBHarmonicMono: 0.3 %distortion atStereo: 0.5 %1 kHzSeparation45dB at 1 kHzFrequency30 Hz 15kHz +0.5 dBresponseSelectivity60 dB at 400 kHzAM tuner sectionTuning range531 1

7、602 kHzAerialLoop aerialUsable sensitivity50 dB/m (at 999 kHz)S/N54 dB(at 50 mV/m)Harmonic0.5%(50 mV/m, 400Hz)distortionSelectivity35 dB2 Continued on next page 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 Se

8、ction 93-4.Printed Wiring Boards Display Section 113-5.Schematic Diagram Power Section 133-6.Printed Wiring Boards Power Section 153-7.Printed Wiring Boards 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)

9、 233-11. IC Pin Function Description253-12. IC Block Diagrams 274.EXPLODED VIEWS4-1.Front Panel Section 294-2.Chassis Section305.ELECTRICAL PARTS LIST31TABLE OF CONTENTS After correcting the original service problem, perform thefollowing safety checks before releasing the set to the customer:Check t

10、he 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

11、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 RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2.A battery-operated AC milliammeter. The Data Precision 245digital mult

12、imeter 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

13、. 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.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK !

14、OR DOTTED LINE WITHMARK ! 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.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFS

15、PAR UNE MARQUE ! 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.GeneralSystemTuner section; PLL quartz-lockeddigital sy

16、nthesizer systemPreamplifier section:Low-noise NF type epualizerPower amplifier section:Pure-complimentary SEPPPower230 V AC, 50/60 HzrequirementsPowerSTR-DE325: 195 WconsumptionSTR-DE225: 110 WAC outletsSwitched 100 W(except for the U.K. model)Dimensions430 145 295 mmMass(Approx.)STR-DE325: 7.4 kgS

17、TR-DE225: 6.1 kgSuppliedFM wire aerial (1)accessoriesAM loop aerial (1)Remote controller (remote) (1)Size AA (R6) batteries (2)Scart adaptor (1)Design and specifications are subject to change without notice.Specifications indicated are measured at 230 VAC, 50 HzRadioFans.CN 收音机爱 好者资料库 3 SECTION 1GEN

18、ERAL123546789!?!?!?!?!?!?!?!?!?!?#?#?#?123456789!?!?!?LOCATION AND FUNCTION OF CONTROLSFRONT PANELREAR PANEL1 POWER switch (I/u)2 CENTER LEVEL +, buttons3 REAR LEVEL +, buttons4 PRO LOGIC, C.STUDIO, HALL indicators5 BASS BOOST indicator6 MASTER VOLUME control7 BALANCE control8 TREBLE control9 BASS c

19、ontrol! MUTING button/indicator! SURROUND ON/OFF button! BASS BOOST button! SURROUND EFFECT/DELAY, MODE buttons! SET UP button! TAPE/MD FUNCTION button! TUNER FUNCTION button! CD FUNCTION button! VIDEO FUNCTION button! TV/LD FUNCTION button Numeric buttons SHIFT button DIRECT TUNING button CHARACTER

20、, 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 y SIGNAL GND3 MIX AUDIO OUT4 AC OUTLET5 AC power cord6 FRONT SPEAKERS (A/B)7 SURROUND S

21、PEAKERS (CENTER)8 SURROUND SPEAKERS (REAR)9 VIDEO AUDIO IN, AUDIO OUT0 TV/LD AUDIO IN! TAPE/MD IN, REC OUT! CD INPhoto : STR-DE225Photo : STR-DE225 4 SECTION 2TEST MODEINITIALIZATION MODE* All preset contents are cleared when this mode is activated. Usethis mode before returning the product to clien

22、ts 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 MODE* All fluorescent segments are tested. When th

23、is 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 turn on at the same time, then each segmentturns

24、on one after another. The message FINISH appears when thistest is complete.AUTO-BETICAL CHECK MODE* To auto-scanning and memorise of RDS station. (RDS model only).* Procedure:While depressing the MEMORY button, press the power I/ubutton to turn on the main power. The message AUTO BET appearsand each

25、 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. (for US, CND and E models only)* Procedure:Set the FUNCTION to AM. Turn off the main power.While depressing the TUNING+ button, press the p

26、ower 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 button, press the powerI/u button to turn on the m

27、ain 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 and the BASS BOOST buttonssimultaneously, press the

28、power I/u button to turn on the mainpower. The software version is displayed. 5 SECTION 3DIAGRAMS3-1.CIRCUIT BOARDS LOCATIONPRIMARY boardDISPLAY boardSP-SW board 10 KEY boardVR-TONE boardVOLUME boardMAIN board MIX-OUT board STAND BY board SECONDARY boardSP-SW-A boardSP-SW-B board 6 For schematic dia

29、grams.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 resistor. 1 : fusible resistor. C : p

30、anel 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. Wavefor

31、ms are taken with a oscilloscope. Circled numbers refer to waveforms. Signal path.F: FM AbbreviationCND: CanadianEE: East EuropeanAUS: AustralianCH: ChineseG: GermanMY: MalaysiaSP: SingaporeEA: Saudi ArabiaTHIS NOTE IS COMMON FOR PRINTED WIRINGBOARDS AND SCHEMATIC DIAGRAMS.(In addition to this neces

32、sary 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.Replace only wi

33、th part numberspecified.Note:Les composants identifis parune marque ! sont critiquespour la scurit.Ne les remplacer que par unepice portant le numro spcifi.1 IC300 32PIN (OSC)2 IC201 34PIN (X1) 8MHz4.19MHz 5.2Vp-p4.4Vp-p WaveformSTR-DE225/DE325 7 8 DATAL OUTFMAMR OUTCLKCETUNEDSTEREOT MUITEDOR CHFM A

34、NT(75)AM ANTSDATASCLKSLATAUTO STOPSTEREOT MUTEDOJ401LRPHONOR CHJ402LRR CHLRR CHJ403LRR CHLRR CHVIDEOINEQ AMPIC402+12VREGIC80128TUNER BLOCKSIGNALSIGDET OUTLRR CHCDLRR CHTV/LDVIDEOOUTTAPEINTAPEOUTJ403VIDEOINCDTV/LDVIDEOOUTTAPEINTAPEOUTJ40230292425262221CL15DI14CE13272320S DATAS CLKSLAT AUDIO SELECTORI

35、C401DATA35 37CLK34 38CE3024L OUT9C OUT22S OUTLT IN453132X3018MHzDATACLKS DATAS CLKSURROUNDPROCESSORIC300BASSRV422TREBLERV421DBFBCONTROLQ401,452AMPIC404IC302(1/2)42161314X14.33MHzRDSIC1MUTEQ303BALANCERV423MUTEQ307MUTEQ308VOLUMERV404MDOWNUPBIASQ701,Q7021415623VEEVCCIN 1+VE 1-VE 113 VCCPOWER AMPIC701+B

36、-BPOWERAMPQ703CURRENTDETQ720POWERAMPQ704PROTECTORQ721-723RELAYDRIVEQ710RY701CS(L)S(R)SURROUNDSPEAKERJ741PHONSTM601FRONTSPEAKERTM701R CHLRRELAYDRIVEQ610RY601D724SPEAKER ASPEAKER BONOFFONOFFS701R CHR CHR CHBA8732MOTORDRIVERIC202UPDOWNSYSTEM CONTROLIC20145RDS CLK46RDS DATAPLL DATAT MUTESTEREOAUTO STOPS

37、IGNAL12S CE9S CLK10S DATA13S CE53LOW BASSDOT MUTESTEREOAUTO STOPSIGS LATS CLKS DATA54MUTE FUNC41UP42DOWN16PROTECT21SP RY22SURR RYVERSION56X134X235X2014.198MHzHALL39SIMULATED38PROLOGIC37MUTING43MUTINGHALLPROLOGICCSTUDIOLED +5VD235D236D237D238FUNCTIONKEYA/D 227A/D 128A/D 326S217-239S241,242S240FUNCTIO

38、NKEYS201-216KI 160KI 259S200SYSTEMPOWERSYS POWER4477 72.70 6271.80 78S1 15G1 10S8-15D221-223FL201FLOURESCENTINDICATOR TUBEF1F2F1F213-12VREGIC80223+9V REGQ808+12V-24V REGQ801+9V-12V+B-B-24VD802T901CND MODELD820-823F901RELAYDRIVEQ809RY801RY851RY801RY901EXCEPTCND MODELRELAYDRIVEQ802CNJ902ACINF902T902ST

39、ANDBYIC950658DELAY+B SWQ951D810-813RESETQ201,202REMOTECONTROLRECEIVER213D202D201D901L401LED +5VIC201 +BTUNER/RDS +5V+5.6VIC20315BRIDGE23POWER RY47STOP17RESET49SIRCSIC302(1/2)SURROUNDAMP8IN 21415823VEEVCCIN+VE-VE13 VCCPOWER AMPIC702+B-BPOWERAMPQ603CURRENTDETQ620POWERAMPQ6041211+VE 2-VE 2POWERAMPQ653C

40、URRENTDETQ670POWERAMPQ654D725D723J253WOOFER2518194011RY852CNJ902S90116: FM: CD (ANALOG) Signal Path RCH is omitted: PHONOLED SWQ231D239BASSBOOSTLED +5VD203AEP, UK, G, EE MODELEXCEPT AEP, UK, G, EE MODELAEP, UK, G, EE MODELE, EA MODELAEP, G, EE, SP, MY, AUS,CH MODELEXCEPT E, EA, CH MODELUS, CND, E, E

41、A MODELBIASQ651,Q652BIASQ601,Q6023-2. BLOCK DIAGRAMSTR-DE225/DE325 9 10 3-3. SCHEMATIC DIAGRAM DISPLAY SECTION STR-DE225/DE32512ABCDEFGHIJ34567891011121314 11 12 Ref. No.LocationD201B-3D202B-2D203B-3D204B-3D211A-9D212A-9D213B-9D214B-9D215B-9D216B-9D217B-9D218B-9 Semiconductor LocationRef. No.Locatio

42、n3-4. PRINTED WIRING BOARDS DISPLAY SECTION 1-669-293-11(11)10 KEY BOARD14MODESET UPTAPE/MDPHONOTUNERTUNERTV/LDVIDEOCDCDEFFECT/DELAYSURROUNDSURROUNDON/OFFBASS BOOSTSHIFTDIRECT TUNING09876234511-669-262-11(11)MEMORYDISPLAYEONPTYRDSCHARACTERFM/AMFM MODESLEEP_+REARLEVEL_+CENTERLEVEL1/(PRO LOGIC)(C.STUD

43、IO)(HALL)131142514173134 35IC2011242540 41646580BEBBEEDISPLAY BOARDVR-TONE BOARD7911BTO MAIN BOARD CNS204GTO MAIN BOARD CNS7011-669-265-11(11)1-669-264-11(11)BALANCETREBLEMUTINGBASS(BASS BOOST)VOLUME BOARD114587MASTER VOLUMEMBBEEATO MAIN BOARD CNS301RV404FL201PRESETCHARACTER_+TUNINGPTY SELECT_+16DE3

44、25:AEP,G,EEMODELDE325:AEPG,EEMODELDE225:AEP,G,EE,UKDE325:AEP,G,EEMODELDE225:CNDDE325:EXCEPT AEP,G,EEMODELDE225:AEP,G,EE,UKDE325:AEP,G,EEMODELDE225:AEP,G,EE,UKDE325:AEP,G,EE,AUSMODELDE225:AEP,G,EE,UKMODELDE325:EE,SP,MYMODELDE325:E,EA,CHAUS,SP,MY MODELRD1RD2RD3RD4RD5RD6RD7RD8RD9RD10RD11RD12RD13RD14RD1

45、5RD16RD17RD18RD19RD20RD21RD22RD23RD24RD25(Page 17)(Page 17)(Page 18)Ref. No.LocationD221B-8D222B-8D223B-8D225B-8D231B-2D235C-11D236B-11D237B-11D239C-2D238F-2D421I-1IC201C-6IC202B-1IC203C-10IC404I-3Q201B-3Q202B-4Q231B-2Q401H-3Q402I-2Q451I-2Q452H-2STR-DE225/DE325 13 14 3-5. SCHEMATIC DIAGRAM POWER SEC

46、TION STR-DE225/DE32512ABCDEFGHI345678910111213 15 16 3-6. PRINTED WIRING BOARDS POWER SECTION PRIMARY BOARDSECONDARY BOARD1-669-267-11(11)1-669-268-11(11)FTO MAIN BOARD CN801111T901POWERTRANSFORMER12F901STAND BY BOARDVOL SEL BOARDSP-SW BOARDSW (A) BOARDSW (B) BOARD161-669-270-1-669-271-1-669-272-11(

47、11)1-669-269-11(11)1-669-266-11(11)11(11)11(11)113135OFFONSPEAKER BSPEAKER ADTO MAIN BOARD CN706CTO MAIN BOARD CNP702ETO MAIN BOARD CNS80211221111241322CNJ902ACINJ741PHONESS901US,CNDMODELDE325:E,EA MODELDE325:E,EAMODELEXCEPT DE325:E,EA MODELDE225:AEP,G,EEDE325:AEP,G,EE,SP,MY,AUS,CHMODELDE225:CNDDE32

48、5:US,CND,E,EAMODEL(Page 18)(Page 18)(Page 18)(Page 18)Ref. No.LocationD816I-3 SemiconductorLocationSTR-DE225/DE32512ABCDEFGHIJK34567891011121314151-669-261-11CTOSW(B)BOARDCNS70215EBEBEEBBBEBEEBEBEEBBEBEBEDTOSTAND BYBOARDCNP802TOSECONDARYBOARDCNP801TOSP-SWBOARDCNP703/CNP704BABABABALRFRONT SPEAKERSTM7

49、01REARRLCENTERSURROUND SPEAKERTM601MAIN BOARDAUDIOINAUDIO OUT AUDIOININININREC OUTCDPHONOVIDEOTAPE MDTV/LDJ401J402J40316AFTOVOLUME BOARDCNS402GTO DISPLAY BOARDCNS201BTOTUNERUNITTOVOLUMEBOARDCNS4031111311115431516304588916BE1111814BBEE1458BEEEBEBEBEBBEBEEB EB BEBBBBEEBEE115BEBEBEBE14581-669-273-11(11

50、)MIX BOARDMIXJ254AUDIOOUT14RY801RY851,RY852:CND MODELRY801:EXCEPT CND MODELDE225:AEP,G,EE,UKDE325:AEP,G,EEMODELDE225:AEP,G,EE,UKDE325:AEP,G,EEMODELDE225:AEP,G,EE,UKDE325:AEP,G,EEMODELDE325:AEP,G,EEMODELJ402J403EXCEPTDE325:AEP,G,EEMODELDE325:AEP,G,EEMODELDE325:AEPG,EE MODELCNS253C460(Page 11)(Page 11