Sony-STRDE685-rec-sm 维修电路原理图.pdf

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1、1SERVICE MANUALUS ModelCanadian ModelAEP ModelUK ModelE ModelAustralian ModelTourist ModelChinese ModelSTR-DE685FM STEREO/FM-AM RECEIVERAUDIO POWER SPECIFICATIONSPOWER OUTPUT AND TOTALHARMONIC DISTORTION:With 8 ohm loads, both channels driven, from20 20,000 Hz; rated 100 watts per channelminimum RMS

2、 power, with no more than0.09 % total harmonic distortion from 250milliwatts to rated output (Models of areacode US only).Amplifier sectionPOWER OUTPUTModels of area code US, CNDRated Power Output at Stereo Mode(8 ohms 20 Hz 20 kHz, THD 0.09 %)100 W + 100 WReference Power Output(8 ohms 1 kHz, THD 0.

3、7 %)FRONT 1) :100 W/chCENTER 1) :100 WSURR 1) :100 W/chModels of area code AEP, UKRated Power Output at Stereo Mode(8 ohms 1 kHz, THD 0.7 %)100 W + 100 W 2)Reference Power Output 2)(8 ohms 1 kHz, THD 0.7 %)FRONT 1) :100 W/chCENTER 1) :100 WSURR 1) :100 W/chSPECIFICATIONSModels of other area codeRate

4、d Power Output at Stereo Mode(8 ohms 1 kHz, THD 0.7 %)100 W + 100 W 2)Reference Power Output 2)(8 ohms 1 kHz, THD 10 %)FRONT 1) :120 W/chCENTER 1) :120 WSURR 1) :120 W/ch1) Depending on the sound field settings and thesource, there may be no sound output.2) Measured under the following conditions:Ar

5、ea codePower requirementsE, AUS, JE240 V AC, 50 HzAEP, UK, CH, SP, MY,230 V AC, 50 HzAR, KRTW110 V AC, 60 HzUS, CND, MX120 V AC, 60 HzFrequency responseMULTI CH IN,10 Hz 70 kHzCD/SACD, AUX,+0.5/2 dB (with soundMD/TAPE, DVD/LD,field, equalizer, and bassVIDEO 1, 2, 3boost bypassed)Inputs (Analog)MULTI

6、 CH IN,Sensitivity: 250 mVCD/SACD, AUX,Impedance: 50 kilohmsMD/TAPE, DVD/LD,S/N 3) : 96 dBVIDEO 1, 2, 3(A, 250 mV 4) )3) INPUT SHORT (with sound field , equalizer and bass boostbypassed).4) Weighted network, input level.Ver 1.1 2003. 089-873-687-022003H04-1 2003. 08Sony CorporationHome Audio Company

7、Published by Sony Engineering CorporationManufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic” and the double-D symbol aretrademarks of Dolby Laboratories.“DTS” and “DTS Digital Surround” are registeredtrademarks of Digital Theater Systems, Inc. Continued on next page RadioFans.CN

8、收音机爱 好者资料库2STR-DE685Inputs (Digital)DVD/LD (Coaxial)Sensitivity: Impedance: 75 ohmsS/N: 100 dB(A, 20 kHz LPF)VIDEO 2, CD/SACD,Sensitivity: MD/TAPE (Optical)Impedance: S/N: 100 dB(A, 20 kHz LPF)Outputs (Analog)MD/TAPE (OUT),Voltage: 250 mVVIDEO1 (AUDIO OUT)Impedance: 10 kilohmsSUB WOOFERVoltage: 2 VI

9、mpedance: 1 kilohmsOutputs (Digital)MD/TAPE (Optical)Sensitivity: EQGain levels:6 dB, 1 dB stepFM tuner sectionTuning range87.5 - 108.0 MHzAntenna terminals75 ohms, unbalancedIntermediate frequency10.7 MHzSensitivityMono:18.3 dBf, 2.2 V/75 ohmsStereo:38.3 dBf, 22.5 V/75 ohmsUsable sensitivity11.2 dB

10、f, 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 kHzAM tuner sectionTuning rangeModels of area code US, CNDWith 10-kHz tuning scale: 530 1710 kHz 5)With 9-kHz tuning scale:53

11、1 1710 kHz 5)Models of area code E, MX, ARWith 10-kHz tuning scale: 530 1610 kHz 5)With 9-kHz tuning scale:531 1602 kHz 5)Models of area code AEP, UK, AUS, JE, CH, SP, MY,TW, KRWith 9-kHz tuning scale:531 1602 kHzAntennaLoop antennaIntermediate Frequency450 kHzUsable sensitivity50 dB/m (at 1,000 kHz

12、 or999 kHz)S/N54 dB (at 50 mV/m)Harmonic distortion0.5 % (50 mV/m, 400 Hz)SelectivityAt 9 kHz:35 dBAt 10 kHz:40 dB5) You can change the AM tuning scale to 9 kHz or10 kHz. After tuning in any AM station, turn offthe receiver. Hold down PRESET TUNING + andpress ?/1 . All preset stations will be erased

13、 whenyou change the tuning scale. To reset the scale to10 kHz (or 9 kHz), repeat the procedure.Video sectionInputsVideo:1 Vp-p, 75 ohmsS-video:Y: 1 Vp-p, 75 ohmsC: 0.286 Vp-p, 75 ohmsComponent Video:Y: 1 Vp-p, 75 ohmsPB B-Y: 0.7 Vp-p, 75 ohmsPR R-Y: 0.7 Vp-p, 75 ohmsOutputsVideo:1 Vp-p, 75 ohmsS-vid

14、eo:Y: 1 Vp-p, 75 ohmsC: 0.286 Vp-p, 75 ohmsComponent Video:Y: 1 Vp-p, 75 ohmsPB B-Y: 0.7 Vp-p, 75 ohmsPR R-Y: 0.7 Vp-p, 75 ohmsGeneralPower requirementsArea codePower requirementsUS, CND, MX120 V AC, 60 HzAEP, UK230 V AC, 50/60 HzCH, SP, MY, AR, KR220 230 V AC, 50/60 HzE, JE120/220/240 V AC, 50/60 H

15、zTW110 V AC, 50/60 HzAUS240 V AC, 50HzPower consumptionArea codePower consumptionUS, MX210 WCND300 VAAEP, UK, E, AUS, JE,180 WCH, SP, MY, AR, KRTW450 WPower consumption (during standby mode)0.5 W (when “A.PWR” in theSET UP menu is set to “OFF”).AC outletsArea codeAC outletsUS, CND1 switched, 120 W/1

16、A MAXAEP, UK, E, AUS, JE,1 switched, 100 W MAXMX, SP, MY, TWDimensions430 157.5 308.5 mm(16 7/8 6 2/8 12 1/8 inches)including projecting partsand controlsMass (Approx.)7.5 kg (16 lb 9 oz)Supplied accessoriesFM wire antenna (1)AM loop antenna (1)Remote commander (1) RM-PP411 (models of area code US,

17、CND only) RM-U305C (except for models of area code US, CND)R6 (size-AA) batteries (2)Design and specifications are subject to changewithout notice. AbbreviationCND: Canadian modelAUS: Australian modelJE: Tourist modelCH: Chinese modelMX: Mexican modelSP: Singapore modelMY: Malaysia modelTW: Taiwan m

18、odelAR: Argentina modelKR: Korean modelRadioFans.CN 收音机爱 好者资料库3STR-DE685MODEL IDENTIFICATION BACK PANEL Part No.1.5 k0.15 FACvoltmeter(0.75 V)To Exposed MetalParts on SetEarth GroundSAFETY CHECK-OUTAfter correcting the original service problem, perform the follow-ing safety check before releasing th

19、e set to the customer:Check the antenna terminals, metal trim, “metallized” knobs, screws,and all other exposed metal parts for AC leakage.Check leakage as described below.LEAKAGE TESTThe AC leakage from any exposed metal part to earth ground andfrom all exposed metal parts to any exposed metal part

20、 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 RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2.A battery-operated AC milliammeter.

21、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” indica-tion is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-a

22、mples of a passive VOM that is suitable. Nearly all batteryoperated digital multimeters that have a 2 V AC range are suit-able. (See Fig. A)SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE O

23、PERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONTCRITIQUES POUR LA SCU

24、RIT DE FONCTIONNEMENT. NEREMPLACER CES COMPOSANTS QUE PAR DES PICES SONYDONT LES NUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPLMENTS PUBLIS PAR SONY.Area codePart No.Singapore4-238-191-3sMalaysia4-238-191-4sE4-238-191-5sAEP4-238-191-6sUK, Australian4-238-191-7sMexican4-238-191-8sArgentina4-238-19

25、1-9sCanadian4-238-192-2sUS4-238-192-3sTaiwan4-238-192-4sKorean4-238-192-5sChinese4-238-192-6sTourist4-238-192-7sVer 1.14TABLE OF CONTENTS1. GENERALMain unit . 5Remote button description (US, Canadian model only). 6Remote button description (Except US, Canadian model). 72. DISASSEMBLY2-1. Case . 82-2

26、. Front Panel Section . 92-3. Headphone Board, Video3 Board. 92-4. Back Panel Section. 102-5. Digital Board. 102-6. Standby Board .112-7. Main Board .113. TEST MODE. 124. DIAGRAMS4-1. IC Pin Descriptions .134-2. Block Diagram Tuner/Audio Section . 174-3. Block Diagram Digital Section .184-4. Block D

27、iagram Key/Display Section . 194-5. Block Diagram Video Section . 204-6. Block Diagram Power Section . 214-7. Circuit Boards Location . 224-8. Printed Wiring Boards Main Section . 234-9. Schematic Diagram Main Section (1/2) . 244-10. Schematic Diagram Main Section (2/2) . 254-11. Printed Wiring Boar

28、d Digital Section (1/2) . 264-12. Printed Wiring Board Digital Section (2/2) . 274-13. Schematic Diagram Digital Section (1/2) .284-14. Schematic Diagram Digital Section (2/2) .294-15. Printed Wiring Boards Display Section . 304-16. Schematic Diagram Display Section .314-17. Printed Wiring Board Spe

29、aker B Section . 324-18. Schematic Diagram Speaker B Section .324-19. Printed Wiring Boards Video Section . 324-20. Schematic Diagram Video Section . 334-21. Printed Wiring Board S-video Section . 344-22. Schematic Diagram S-video Section .344-23. Printed Wiring Board Component Video Section .354-24

30、. Schematic Diagram Component Video Section . 354-25. Printed Wiring Boards Power Section . 364-26. Schematic Diagram Power Section . 374-27. IC Block Diagrams. 385. EXPLODED VIEWS5-1. Case Section . 405-2. Front Panel Section .415-3. Chassis Section-1 . 425-4. Chassis Section-2 . 436. ELECTRICAL PA

31、RTS LIST. 44STR-DE6855STR-DE685SECTION 1GENERALThis section is extractedfrom instruction manual.5GBwkwle;eaesedejekelr;rarsehefeg1 235906qa qsqdqfqgqjqk qlw; ws wf whwa wd wg wjqh748List of Button Locations and Reference PagesMain unitFM/AM (Models of area codeCEL, CEK only) ej (32, 33)FM MODE (Mode

32、ls of area codeCEL, CEK only) ek , (Exceptfor models of area code CEL,CEK) el (33)INPUT MODE ql (23)IR (receptor) 6 (42, 49, 55)Jog dial eh (18, 29, 31, 37, 38)LEVEL qs (18, 22, 29, 59)MASTER VOLUME wk (22, 53)MD/TAPE wa (23)MEMORY ra (32, 34)MODE es (26, 31, 54)MULTI CHANNEL DECODING(indicator) qa

33、(23)MULTI CH IN e; (23)MUTING wl (24, 53)NAME qf (37)PHONES (jack) 3 (24, 54)PRESET/PTY SELECT +/(Models of area code CEL, CEKonly) 7 (34, 35)PRESET TUNING +/ (Exceptfor models of area code CEL,CEK) 7 (34, 57)PTY (Models of area code CEL,CEK only) el (35)SET UP qd (4, 18, 38, 59)SHIFT r; (34)SPEAKER

34、S A/B 2 (24, 29, 53)SURR 0 (29, 59)TUNER wg (23, 33, 34, 37)TUNING +/ 8 (33)VIDEO 1 w; (23)VIDEO 2 ws (23)VIDEO 3 wf (23)VIDEO 3 INPUT (jacks) rs (9)/1 (power) 1 (4, 17, 22, 31,32, 57) eg (18, 29, 31, 37, 38)2 CH ea (27)A.DEC ed (25, 27)AM (Except for models of areacode CEL, CEK) ej (32, 33)AUX wj (

35、23)CD/SACD wd (23)CINEMA STUDIO EX A,B,C qh(26)Digital Cinema Sound (indicator)qj (25)DIMMER 5 (24)DISPLAY 4 (24, 35, 55)Display qg (24)DVD/LD wh (23)ENTER ef (37)EQ qk (31, 59)EQUALIZER qk (31)FM (Except for models of areacode CEL, CEK) ek (32, 33)Use this page to find the location of buttons that

36、arementioned in the text.Illustration number rNAME qf (37) RRName of button/partReference page6STR-DE68542GBYou can use the remote RM-PP411 to operatethe components in your system.Before you use yourremoteInsert R6 (size-AA) batteries with the + and properly oriented in the battery compartment.When

37、using the remote, point it at the remotesensor on the receiver.Under normal conditions, the batteries should last forabout 6 months. When the remote no longer operatesthe receiver, replace all batteries with new ones. Do not leave the remote in an extremely hot orhumid place. Do not use a new batter

38、y with an old one. Do not expose the remote sensor to direct sunlightor lighting apparatuses. Doing so may cause amalfunction. If you dont use the remote for an extended periodof time, remove the batteries to avoid possibledamage from battery leakage and corrosion.Remote buttondescriptionNXmM.-VIDEO

39、1VIDEO2USE MODESYSTEM STANDBYSLEEPAV1AV2TV ?/1AV ?/1VIDEO3DVD/LDTV/SATMD/TAPECD/SACDTUNERPHONOAUXMULTI CHSOURCESHIFTTOP MENU/GUIDEAV MENUMUTINGMASTERVOLDISPLAYTV VOLTV CHWIDEON SCREENTV/VIDEOMAINMENURETURN/EXITD.TUNINGDISCALTANTCLEARSEARCH MODETESTTONEPRESET1234567890/1010/1112AUTO DECSUBTITLEENTERM

40、ODEAUDIOSWAP/ANGLEJUMP/TIMEPRESET/CH/D.SKIPMPX/DUALANALOGDIRECT2CHSOUND FIELDx?/1POfFGgfFGgOperations Using the Remote RM-PP411The tables below show the settings of eachbutton.RemoteOperationsFunctionButton?/1ReceiverTurns the receiver on or off.SLEEPReceiverActivates the sleepfunction and the durat

41、ionwhich the receiver turnsoff automatically.ENTER/EXECUTE(US, Canadian model only)7STR-DE68549GBYou can use the remote RM-U305C to operatethe components in your system.Before you use yourremoteInsert R6 (size-AA) batteries with the + and properly oriented in the battery compartment.When using the r

42、emote, point it at the remotesensor on the receiver.Under normal conditions, the batteries should last forabout 6 months. When the remote no longer operatesthe receiver, replace all batteries with new ones. Do not leave the remote in an extremely hot orhumid place. Do not use a new battery with an o

43、ld one. Do not expose the remote sensor to direct sunlightor lighting apparatuses. Doing so may cause amalfunction. If you dont use the remote for an extended periodof time, remove the batteries to avoid possibledamage from battery leakage and corrosion.Remote buttondescriptionXxDISCnNmM.10078945612

44、3ENTERCD/SACDTUNERVIDEOAUXMD/TAPEVIDEO 2PHONOVIDEO 1VIDEO 3SYSTEMSTANDBYFUNCTIONSHIFTPOSITIONDISPLAYMODEJUMPA.DECMUTING2CH/OFFWIDEP IN PSWAPD.SKIP/CH/PRESET / SUB CH +ANTTV/VTRTV/VIDEOMULTI/2CHA. DIRECTSOUND FIELD+MAIN MENUMENUMASTERVOLTEST TONED.TUNINGRETURNMENUENTERTITLEfFGgfFGgSLEEPAV?/1?/1DVD/LD

45、TV/SATFN SHIFTOperations Using the Remote RM-U305CcontinuedThe tables below show the settings of eachbutton.RemoteOperationsFunctionButtonSLEEPReceiverActivates the sleepfunction and the durationwhich the receiver turnsoff automatically.?/1ReceiverTurns the receiver on oroff.(Except US, Canadian mod

46、el)8STR-DE685Note : This set can be disassemble according to the following sequence.SECTION 2DISASSEMBLY2-1. CASE2-1.CASE(Page 8)2-2.FRONT PANEL SECTION(Page 9)2-4.BACK PANEL SECTION(Page 10)SET2-3.HEADPHONE BOARD,VIDEO3 BOARD(Page 9)2-5.DIGITAL BOARD(Page 10)2-6.STANDBY BOARD(Page 11)2-7.MAIN BOARD

47、(Page 11)Note : Follow the disassembly procedure in the numerical order given.1two screws(case 3 TP2)2two screws(case 3 TP2)3two screws(case 3 TP2)4case9STR-DE6852-2. FRONT PANEL SECTION7front panel section5two screws(BVTP3 x 8)1CNS43CNP5034CNP1552CNP7916five screws(BVTP3 x 8)2-3. HEADPHONE BOARD, V

48、IDEO3 BOARD1two screws(BVTP2.6 x 8)3two screws(BVTP2.6 x 8)2HEADPHONE boardfront panel section4VIDEO3 board10STR-DE6852-5. DIGITAL BOARD1CNS45CNS16CNS22CNP63CNP58screw (BVTP3 x 8)9bracket (digital)7DIGITAL board4screw (BVTP3 x 8)2-4. BACK PANEL SECTION1CNS72CNS83CNP9017CNP1545CNP8526CNP1554CNP8518fi

49、ve screws(BVTP3 x 8)qstwo screws(BVTP3 x 8)0two screws(BVTP3 x 8)9five screws(BVTP3 x 8)qascrew (BVTP3 x 8)qdscrew (BVTP3 x 8)qfscrew (BVTP3 x 8)qgscrew (BVTP3 x 8)qhback panel (DE6)11STR-DE6857MAIN board1CNP8012CNP8025screw(BVTP3 x 8)3two screws(BVTP3 x 6)4two screws(BVTP3 x 6)6two screws(BVTP3 x 8

50、)2-7. MAIN BOARD6STANDBY board1CNP9152CNP9024CNP9123CNP9035three screws (BVTP3 x 8)2-6. STANDBY BOARD12STR-DE685SOFTWARE VERSION DISPLAY MODE* The software version is displayed.* Procedure:While depressing the ENTER and the SOUND FIELD A.F.D.buttons simultaneously, press the power ?/1 button to turn