Sony-STRDB2000-rec-sm 维修电路原理图.pdf

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1、SERVICE MANUALAUDIO POWER SPECIFICATIONSPOWER OUTPUT AND TOTAL HARMONIC DISTORTION:(STR-DA2000ES model of area code US only)With 8 ohm loads, both channels driven, from 20 20,000 Hz; rated 120 watts per channel minimum RMS power, with no more than 0.6% total harmonic distortion from 250 milliwatts t

2、o rated output.Amplifier sectionRated Power Output at Stereo Mode(8 ohms 20 Hz 20 kHz, THD 0.6%) 120 W + 120 W(4 ohms 20 Hz 20 kHz, THD 0.6%) 100 W + 100 WReference Power Output(8 ohms 20 Hz 20 kHz, THD 0.6%)FRONT1): 120 W + 120 WCENTER1): 120 WSURR1): 120 W + 120 WSURR BACK1)2): 120 W + 120 WSURR B

3、ACK1)3): 120 W(4 ohms 20 Hz 20 kHz, THD 0.6%)FRONT1): 100 W + 100 WCENTER1): 100 WSURR1): 100 W + 100 WSURR BACK1)2): 100 W + 100 WSURR BACK1)3): 100 W1) Depending on the sound field settings and the source, there may be no sound output.2) Model of STR-DA2000ES only.3) Model of STR-DB2000 only.Frequ

4、ency responseInputs (Analog)Inputs (Digital)OutputsEQUALIZERPHONORIAA equalization curve0.5 dBMULTI CHANNEL INPUT 1, 2, CD/SACD, TAPE, MD/DAT, DVD, TV/SAT, VIDEO 1, 2, 310 Hz 40 kHz3 dB (8 ohms)PHONOS/N: 86 dBMULTI CHANNEL INPUT 1, 2, CD/SACD, TAPE, MD/DAT, DVD, TV/SAT, VIDEO 1, 2, 3S/N: 96 dBDVD (C

5、oaxial)Impedance: 75 ohmsS/N: 100 dB (A, 20 kHz LPF)DVD, TV/SAT, MD/DAT, VIDEO3 (Optical)S/N: 100 dB(A, 20 kHz LPF)TAPE, MD/DAT (AUDIO OUT), VIDEO 1, 2 (AUDIO OUT)Voltage: 150 mVImpedance: 2.2 kilohmsFRONT L/R (STR-DA2000ES only), SUB WOOFERVoltage: 2 VImpedance: 1 kilohmGain levels10 dB, 1 dB stepF

6、M STEREO FM/AM RECEIVERSPECIFICATIONSSTR-DA2000ES/DB2000Ver. 1.3 2005.019-961-061-04Sony Corporation2005A05-1Audio Group 2005.01Published by Sony Engineering CorporationUS ModelCanadian ModelSTR-DA2000ESAEP ModelUK ModelE ModelSTR-DB2000 Continued on next page This receiver incorporates Dolby* Digit

7、al and Pro Logic Surround and the DTS* Digital Surround System. * Manufactured under license from Dolby Laboratories.Dolby , Pro Logic and the double-D symbol are trademarks of Dolby Laboratories. * DTS , DTS-ES Extended Surround , and Neo:6 are trademarks of Digital Theater Systems, Inc. Photo: STR

8、-DB2000RadioFans.CN 收音机爱 好者资料库2STR-DA2000ES/DB2000FM tuner sectionTuning range87.5 - 108.0 MHzAntennaFM wire antennaAntenna terminals75 ohms, unbalancedSensitivityMono:18.3 dBf, 2.2 V/75 ohmsStereo:38.3 dBf, 22.5 V/75 ohms Useable sensitivity11.2 dBf, 1 V/75 ohmsS/NMono: 76 dBStereo: 70 dBHarmonic d

9、istortion 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 rangeSTR-DA2000ES:530 1,710 kHz4)(With 10-kHz tuning scale)531 1,710 kHz4)(With 9-kHz tuning scale)STR-DB2000:531 1,602 kHz(With 9-kHz tuning sca

10、le)AntennaLoop antennaUsable sensitivity50 dB/m (at 1,000 kHz or 999 kHz)S/N54 dB (at 50 mV/m)Harmonic distortion0.5% (50 mV/m, 400 Hz)SelectivityAt 9 kHz:35 dBAt 10 kHz:40 dB4) You can change the AM tuning scale to 9 kHz or 10 kHz. After tuning in any AM station, turn off the receiver. While holdin

11、g down PRESET TUNING + or TUNING +, press ?/1. All preset stations will be erased when you change the tuning scale. To reset the scale to 10 kHz (or 9 kHz), repeat the procedure.Video sectionInputs/OutputsVideo:1 Vp-p, 75 ohmsS-video:Y: 1 Vp-p, 75 ohmsC: 0.286 Vp-p, 75 ohmsCOMPONENT VIDEO:Y: 1 Vp-p,

12、 75 ohmsPB/CB/B-Y: 0.7 Vp-p, 75 ohmsPR/CR/R-Y: 0.7 Vp-p, 75 ohmsGeneralPower requirementsPower consumptionPower consumption (during standby mode)1 WDimensions430 161 400 mmincluding projecting parts and controlsMass (Approx.)10 kgSupplied accessoriesFM wire antenna (1)AM loop antenna (1)STR-DA2000ES

13、:Remote commander RM-LG112 (1) R6 (size-AA) batteries (2)STR-DB2000:Remote commander RM-PP412 (1)R6 (size-AA) batteries (2)Design and specifications are subject to change without notice.Area codePower requirementsSTR-DA2000ES 120 V AC, 60 HzSTR-DB2000: AEP, UK 230 V AC, 50/60 HzSTR-DB2000: Singapore

14、, Malaysia220-230 V AC, 50/60 HzArea codePower consumptionExcept STR-DA2000ES: Canadian170 WSTR-DA2000ES : Canadian300 VARadioFans.CN 收音机爱 好者资料库3STR-DA2000ES/DB2000Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be

15、 dam-aged by heat.Fig. A.Using an AC voltmeter to check AC leakage.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 the set to the customer:Check the antenna termi

16、nals, 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 having areturn to chassis, must not exceed 0

17、.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

18、suitable for this job.3.Measuring the voltage drop across a resistor by means of a VOMor battery-operated AC voltmeter. The “limit” indication is 0.75V, so analog meters must have an accurate low-voltage scale.The Simpson 250 and Sanwa SH-63Trd are examples of a pas-sive VOM that is suitable. Nearly

19、 all battery operated digitalmultimeters that have a 2 V AC range are suitable. (See Fig. A)ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTEDES PICES SONT CRITIQUES POUR LA SCURITDE FONCTIONNEMENT. NE REMPLACER CES COM

20、-POSANTS QUE PAR DES PICES SONY DONT LESNUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPLMENTS PUBLIS PAR SONY.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPON

21、ENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed

22、withthe lead free mark due to their particular size): LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher thanordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightl

23、y longer time.Soldering irons using a temperature regulator should be set toabout 350 C.Caution: The printed pattern (copper foil) may peel away if theheated tip is applied for too long, so be careful! Strong viscosityUnleaded solder is more viscou-s (sticky, less prone to flow)than ordinary solder

24、so use caution not to let solder bridges oc-cur such as on IC pins, etc. Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.4STR-DA2000ES/DB20001.SERVICING NOTES.52.GENERALLocation of Controls .83.DISASSEMBLY3-1.Disassembly Flow

25、.93-2.Case . 103-3.Front Panel Section . 103-4.Switching Regulator. 113-5.MAIN Block. 113-6.DIGITAL Board . 123-7.D. AMP Board Section . 124.TEST MODE. 135.ELECTRICAL ADJUSTMENTS. 156.DIAGRAMS6-1.Block Diagram AUDIO (ANALOG) (1/2) Section . 166-2.Block Diagram AUDIO (ANALOG) (2/2) Section . 176-3.Bl

26、ock Diagram AUDIO (DIGITAL) (1/3) Section . 186-4.Block Diagram AUDIO (DIGITAL) (2/3) Section . 196-5.Block Diagram AUDIO (DIGITAL) (3/3) Section . 206-6.Block Diagram PRE OUT Section . 216-7.Block Diagram POWER AMP Section . 226-8.Block Diagram VIDEO Section . 236-9.Block Diagram PANEL Section . 24

27、6-10. Block Diagram POWER Section . 256-11. Note for Printed Wiring Boardsand Schematic Diagrams . 266-12. Schematic Diagram 2CH. AU Board (1/3). 276-13. Schematic Diagram 2CH. AU Board (2/3). 286-14. Schematic Diagram 2CH. AU Board (3/3). 296-15. Printed Wiring Board 2CH. AU Board (Component Side)

28、. 306-16. Printed Wiring Board 2CH. AU Board (Conductor Side) . 316-17. Printed Wiring Board MULTI-VIDEO Board (Component Side) . 326-18. Printed Wiring Board MULTI-VIDEO Board (Conductor Side) . 336-19. Schematic Diagram MULTI-VIDEO Board (1/4) . 346-20. Schematic Diagram MULTI-VIDEO Board (2/4) .

29、356-21. Schematic Diagram MULTI-VIDEO Board (3/4) . 366-22. Schematic Diagram MULTI-VIDEO Board (4/4) . 376-23. Printed Wiring Board UP CONVERT Board (STR-DA2000ES only) . 386-24. Schematic Diagram UP CONVERT Board (STR-DA2000ES only) . 396-25. Printed Wiring Board S-VIDEO Board . 406-26. Schematic

30、Diagram S-VIDEO Board . 416-27. Printed Wiring Board DIGITAL Board (Component Side) . 426-28. Printed Wiring Board DIGITAL Board (Conductor Side) . 436-29. Schematic Diagram DIGITAL Board (1/8) . 446-30. Schematic Diagram DIGITAL Board (2/8) . 456-31. Schematic Diagram DIGITAL Board (3/8) . 46TABLE

31、OF CONTENTS6-32. Schematic Diagram DIGITAL Board (4/8) . 476-33. Schematic Diagram DIGITAL Board (5/8) . 486-34. Schematic Diagram DIGITAL Board (6/8) . 496-35. Schematic Diagram DIGITAL Board (7/8) . 506-36. Schematic Diagram DIGITAL Board (8/8) . 516-37. Printed Wiring Board D. AMP Board (Componen

32、t Side) . 526-38. Printed Wiring Board D. AMP Board (Conductor Side) . 536-39. Schematic Diagram D. AMP Section (1/6) . 546-40. Schematic Diagram D. AMP Section (2/6) . 556-41. Schematic Diagram D. AMP Section (3/6) . 566-42. Schematic Diagram D. AMP Section (4/6) . 576-43. Schematic Diagram D. AMP

33、Section (5/6) . 586-44. Schematic Diagram D. AMP Section (6/6) . 596-45. Printed Wiring Board CIS Board (STR-DA2000ES only) . 606-46. Schematic Diagram CIS Board (STR-DA2000ES only) . 616-47. Printed Wiring Board PANEL Section . 626-48. Schematic Diagram PANEL Section . 636-49. Printed Wiring Board

34、HP-V3 Board . 646-50. Schematic Diagram HP-V3 Board . 656-51. Printed Wiring Board REG Board . 666-52. Schematic Diagram REG Board . 676-53. IC Pin Function Description . 797.EXPLODED VIEWS7-1.Case Section . 917-2.Front Panel Section . 927-3.Base Panel Section . 937-4.Power Block Section. 947-5.Tune

35、r Section . 957-6.Back Panel Section. 967-7.Chassis Section . 977-8.Boards Section . 987-9.HEAT SINK Section . 997-10. D. AMP Board Section .1008.ELECTRICAL PARTS LIST.1015STR-DA2000ES/DB2000SECTION 1SERVICING NOTESPART No. MODEL IDENTIFICATION Back Panel ModelPART No.STR-DB2000: AEP and UK model4-2

36、46-294-0STR-DB2000:Singapore and Malaysia model4-246-294-1STR-DA2000ES: US model4-246-294-3STR-DA2000ES: Canadian model4-246-294-4MULTI-VIDEO BOARD, 2CH. AU BOARD SERVICE POSITIONmulti video board2ch. AU board6STR-DA2000ES/DB2000D. AMP BOARD SERVICE POSITION1Remove the case (Refer to page 10).2Remov

37、e the switching regulator (Refer to page 10)3Remove the main block (Refer to page 10).4Set the switching regulator to the main block.5Set the main block at the shown in the figure.D. AMP board(bottom view)main blockrear panelD. AMP board(CN1901)digital board(CN2006)Connect jig(extension cable J-2501

38、-019-A)to the digital board (CN2006)and D. AMP board (CN1901)In checking the digital board, prepare jig (extension cable J-2501-019-A: 1.25 mm Pitch, 25 cores, Length 300 mm).DIGITAL BOARD SERVICE POSITIONVer. 1.37STR-DA2000ES/DB2000ERROR MESSAGESIf there is a malfunction, the display shows a code o

39、f two numbers and a message. You can check the condition of the system by message.Refer to the following table to solve the problem. messagescheck codecause and responseDECODE ERROR01Appears when the signal which the receiver can not decode(example DSD-CD) is input when “DEC. PRI.” in the CUSTOMIZE

40、menu is set to “PCM”. Set to “AUTO”.PROTECTOR11Irregular current output to the speakers. Turn off the receiver andcheck the speaker connection. Then turn on the power again. Becomes this display, When short current flowed with breakage ofthe power MOS, or when detection resistor becomes open inconne

41、ction with it.PROTECTOR12The amplifier section is overheated. Turn off the receiver andcheck that the ventilation hole is not covered. Leave the receiverfor a while and turn on the power again.PROTECTOR13The power supply section is overheated. Turn off the receiver andcheck that the ventilation hole

42、 is not covered. leave the receiverfor a while and turn on the power again.PROTECTOR21DC between speaker terminal is detected (abnomalities such asDSD 0DATA and signal clip can be considered). Turn off thereceiver and check the speaker connection. Then turn on the poweragain.PROTECTOR22Two defects a

43、 e considered, when current detection of a switchingpower supply operated by the super fluous speaker, +B powersupply shut down or when the power MOS broke and +B lineshort. Turn off the receiver and check the speaker connection.Then turn on the power again.Ver 1.28STR-DA2000ES/DB2000SECTION 2GENERA

44、LThis section is extracted frominstruction manual.LOCATION OF CONTROLS Front Panel Main unitA.F.D. qdDISPLAY 7Display 5INPUT MODE 8INPUT SELECTOR 0IR receptor 1MAIN MENU 3MASTER VOLUME /+ 9MEMORY/ENTER 4MENU w;MOVIE qsMULTI CHANNEL DECODING indicator 6MUSIC qaPHONES jack waPRESET TUNING /+ qjSPEAKER

45、S wsSURR BACK DECODING qg TUNING /+ qhVIDEO 3 INPUT jacks ql2CH qf/+ qk?/1 (power) 2ALPHABETICAL ORDERNUMBERS AND SYMBOLS289653471qlwswaw;qkqjqhqg qf qd qs qaq;9STR-DA2000ES/DB2000 This set can be disassembled in the order shown below.3-1.DISASSEMBLY FLOWSECTION 3DISASSEMBLYSET3-2. CASE(Page 9)3-4.

46、SWITCHING REGULATOR (Page 10)3-5. MAIN BLOCK (Page 10)3-6. DIGITAL BOARD (Page 11)3-7. D. AMP BOARDSECTION (Page 11)3-3. FRONT PANEL SECTION(Page 9)10STR-DA2000ES/DB20003-3.FRONT PANEL SECTION2two flat head screws1two flat head screws3two flat head screws5case4two flat head screws4six screws (BV/rin

47、g)3connector(CN1091)5two screws(BV/ring)2wire (flat type) (29 core)(CN2008)2tape6front panel sectionNote: Follow the disassembly procedure in the numerical order given.3-2.CASE11STR-DA2000ES/DB20005connector(CN1)4connector(CN9)3three connectors(CN2, 3, 5)8two screws(BVTP3 8)6two screws(BVTP3 8)7two

48、screws(BVTP3 8)9switching regulator1connector(CN4)2connector(CN8)hookhook3-4.SWITCHING REGULATORqsmain blockqafive screws(BVTP 3 8)2wire (flat type) (29core)(CN2008)1tape0two screws(BVTP 3 8)9two screws(BVTP 3 8)7three screws(BVTP 3 8)8three screws(BVTP 3 8)4two tapes5two binding bands(taiton)6two f

49、ilter clamps3connector(CN1091)hook3-5.MAIN BLOCK12STR-DA2000ES/DB2000qascrew(BVTP 3 8)q;five screws(BVTP 3 8)6connector(CN2052)5connector(CN2053)qsdigital board9connector8connector(CN2701)7connector(CN2800)4connector(CN2801)3connector(CN2685)1wire (flat cable)(25 core) (CN2006)2wire (flat type)(11 c

50、ore) (EXCEPT AEP, UK)(15 core) (AEP, UK)(CN2051)1two screws(PSW 3 8)3screw(BVTP 3 8)q;two connectors(CN2801, 2802)5six screws(BVTP 3 10)7screw(BVTP 3 10)(US, Canadian)9wire (flat type)(25 core) (CN1901)qdD-AMP board Section8qsconnector(CN1853)qaconnector(CN1852)4six caps6cap(US, Canadian)2two wires3