Sony-STRDB1080-rec-sm 维修电路原理图.pdf

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1、SERVICE MANUALFM STEREO FM-AM RECEIVERSPECIFICATIONSSTR-DA2ES/DB1080Photo: STR-DA2ESVer 1.1 2003.079-874-061-02Sony Corporation2003G05-1Home Audio CompanyC 2003.07Published by Sony Engineering CorporationUS ModelCanadian ModelSTR-DA2ESAEP ModelUK ModelE ModelSTR-DB1080 Continued on next page This re

2、ceiver incorporates Dolby* Digital and Pro Logic Surroundand the DTS* Digital Surround System.* Manufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic” and the double-D symbol aretrademarks of Dolby Laboratories.*“DTS”, “DTS-ES Extended Surround” and “Neo:6” are trademarks of Digital

3、 Theater Systems, Inc.AUDIO POWER SPECIFICATIONSPOWER OUTPUT AND TOTALHARMONIC DISTORTION:(Models of area code U only)With 8 ohm loads, both channels driven, from20 20,000 Hz; rated 100 watts per channelminimum RMS power, with no more than0.09 % total harmonic distortion from250 milliwatts to rated

4、output.Amplifier sectionPOWER OUTPUTModels of area code U, CARated Power Output at Stereo Mode(8 ohms 20 Hz 20 kHz, THD 0.09 %)100 W + 100 W(4 ohms 20 Hz 20 kHz, THD 0.09 %)80 W + 80 WReference Power Output(8 ohms 20 Hz 20 kHz, THD 0.09 %)FRONT1):100 W + 100 WCENTER1): 100 WSURR1): 100 W + 100 WSURR

5、 BACK1): 100 W(4 ohms 20 Hz 20 kHz, THD 0.09 %)FRONT:1) 80 W + 80 WCENTER1): 80 WSURR1): 80 W + 80 WSURR BACK1): 80 WModels of other area codeRated Power Output at Stereo Mode(8 ohms 1 kHz, THD 0.7 %)100 W + 100 W2)(4 ohms 1 kHz, THD 0.7 %)90 W + 90 W2)Reference Power Output2)(8 ohms 1 kHz, THD 0.7

6、%)FRONT1): 100 W + 100 WCENTER1): 100 WSURR1): 100 W + 100 WSURR BACK1): 100 W(4 ohms 1 kHz, THD 0.7 %)FRONT1): 90 W + 90 WCENTER1): 90 WSURR1): 90 W + 90 WSURR BACK1): 90 W(8 ohms 20 Hz 20 kHz, THD 0.09 %)FRONT1): 90 W + 90 WCENTER1): 90 WSURR1): 90 W + 90 WSURR BACK1): 90 W(4 ohms 20 Hz 20 kHz, TH

7、D 0.09 %)FRONT1): 80 W + 80 WCENTER1): 80 WSURR1): 80 W + 80 WSURR BACK1): 80 W1) Depending on the sound field settings and thesource, there may be no sound output.2) Measured under the following conditions:Area codePower requirementsE240 V AC, 50 HzSP, CEL, CEK, KR230 V AC, 50 HzFrequency responseP

8、HONOCD/SACD, TAPE,MD/DAT, TV/SAT,DVD/LD, VIDEO 1, 2,3Inputs (Analog)PHONOMULTI CH IN 1, 2,CD/SACD, TAPE,MD/DAT, DVD/LD,TV/SAT, VIDEO 1, 2,33) INPUT SHORT.4) Weighted network, input level.RIAA equalization curve0.5 dB10 Hz 100 kHz+0.5/2 dB (whenANALOG DIRECT isselected)Sensitivity: 2.5 mVImpedance: 5

9、0 kilohmsS/N3): 86 dB (A, 2.5 mV4)Sensitivity: 150 mVImpedance: 50 kilohmsS/N3): 96 dB(A, 150 mV4)RadioFans.CN 收音机爱 好者资料库2STR-DA2ES/DB1080Inputs (Digital)DVD/LD (Coaxial)DVD/LD, TV/SAT,MD/DAT, VIDEO3(Optical)OutputsTAPE, MD/DAT(REC OUT), VIDEO1, 2 (AUDIO OUT)FRONT L/R,CENTER,SURROUND L/R,SURROUND BA

10、CK,SUB WOOFEREQBASS:99 Hz1.0 kHzMID (FRONT L/R, CENTER only):198 Hz10 kHzTREBLE:1.0 kHz10 kHzGain levels:10 dB, 0.5 dB stepImpedance: 75 ohmsS/N: 100 dB(A, 20 kHz LPF)S/N: 100 dB(A, 20 kHz LPF)Voltage: 150 mVImpedance: 2.2 kilohmsVoltage: 2 VImpedance: 1 kilohmsFM tuner sectionTuning range87.5 - 108

11、.0 MHzAntenna terminals75 ohms, unbalancedSensitivityMono:18.3 dBf, 2.2 V/75 ohmsStereo:38.3 dBf, 22.5 V/75 ohmsUsable sensitivity11.2 dBf, 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 dBSelectivity6

12、0 dB at 400 kHzAM tuner sectionTuning rangeModels of area code U, CAWith 10-kHz tuning scale: 530 1,710 kHz5)With 9-kHz tuning scale:531 1,710 kHz5)Models of area code EWith 10-kHz tuning scale: 530 1,610 kHz5)With 9-kHz tuning scale:531 1,602 kHz5)Models of area code SP, CEL, CEK, KRWith 9-kHz tuni

13、ng scale:531 1,602 kHzAntennaLoop antennaUsable sensitivity50 dB/m (at 1,000 kHz 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 receiv

14、er. Hold down TUNING + and press?/1. All preset stations will be erased when youchange the tuning scale. To reset the scale to10 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(Except for models of a

15、rea code CEL, CEK):Y: 1 Vp-p, 75 ohmsB-Y: 0.7 Vp-p, 75 ohmsR-Y: 0.7 Vp-p, 75 ohmsGeneralPower requirementsArea codePower requirementsU, CA120 V AC, 60 HzCEL, CEK230 V AC, 50/60 HzSP220 230 V AC, 50/60 HzE120/220/240 V AC, 50/60 HzKR220 230 V AC, 60 HzPower consumptionArea codePower consumptionU290 W

16、CA340 VACEL, CEK300 WSP, E, KR300 WPower consumption (during standby mode)0.8 W (when “POWER SAVE” in the CUSTOMIZEmenu is set to “OFF”)/0.5 W (“ON”)AC outletsArea codeAC outletsU, CA2 switched, 120 W/1A MAXSP, CEL, CEK1 switched, 100 W MAXE2 switched, 100 W MAXDimensions430 161 400 mmincluding proj

17、ecting partsand controlsMass (Approx.)13.3 kgSupplied accessoriesFM wire antenna (1)AM loop antenna (1)Models of area code U, CA;Audio/video/control S cord (1)Control S cord (mini jack) (1)Remote commander RM-PG411 (1)R6 (size-AA) batteries (2)Models of other area codes;Remote commander RM-LP211 (1)

18、R6 (size-AA) batteries (3)Design and specifications are subject to changewithout notice.RadioFans.CN 收音机爱 好者资料库3STR-DA2ES/DB1080Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam-aged by heat.Fig. A.Using an AC

19、 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 terminals, metal trim, “metallized” knobs

20、,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 0.5 mA (500 microamperes.).Leakage cu

21、rrent 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 suitable for this job.3.Measuring th

22、e 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 all battery operated digitalmultime

23、ters 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-POSANTS QUE PAR DES PICES SONY DONT

24、 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 COMPONENTS WITHSONY PARTS WHOSE PART NUMBE

25、RS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.4STR-DA2ES/DB10801.SERVICING NOTES.52.GENERAL.63.DISASSEMBLY3-1.Disassembly Flow .73-2.Case (414535) .83-3.S-VIDEO board, VIDEO Board,UP CONVERT Board and Tuner.83-4.VIDEO.AU Board .93-5.DIGITAL Board .93-6.MAIN Board, MIX Board .

26、 104.TEST MODE. 115.ELECTRICAL ADJUSTMENT. 126.DIAGRAMS6-1.Block Diagram TUNER/VIDEO INPUT Section . 136-2.Block Diagram AUDIO DSP Section . 146-3.Block Diagram AUDIO CONTROL Section . 156-4.Block Diagram POWER AMP Section . 166-5.Block Diagram DISPLAY/KEY CONTROL Section . 176-6.Block Diagram POWER

27、 SUPPLY Section . 186-7.Note for Printed Wiring Boardsand Schematic Diagrams . 196-8.Schematic Diagram DIGITAL (1/5)/V3-OPT Boards . 216-9.Schematic Diagram DIGITAL Board (2/5) . 226-10. Schematic Diagram DIGITAL Board (3/5) . 236-11. Schematic Diagram DIGITAL Board (4/5) . 246-12. Schematic Diagram

28、 DIGITAL Board (5/5) . 256-13. Printed Wiring Board DIGITAL Board (Component Side) . 266-14. Printed Wiring Boards DIGITAL (Conductor Side)/V3-OPT Boards . 276-15. Printed Wiring Board VIDEO Board . 286-16. Schematic Diagram VIDEO Board . 296-17. Printed Wiring Boards S-VIDEO/VIDEO 3/VIDEO.AU Boards

29、 . 306-18. Schematic Diagram S-VIDEO/VIDEO 3/VIDEO.AU Boards . 316-19. Printed Wiring Board UP CONVERT Board . 326-20. Schematic Diagram UP CONVERT Board . 336-21. Printed Wiring Board MAIN Board . 346-22. Schematic Diagram MAIN Board (1/3) . 356-23. Schematic Diagram MAIN Board (2/3) . 366-24. Sche

30、matic Diagram MAIN Board (3/3) . 376-25. Printed Wiring Boards BIAS/MIX Boards . 386-26. Schematic Diagram BIAS/MIX Boards . 396-27. Printed Wiring Boards H.P/SP/SP-B Boards . 406-28. Schematic Diagram H.P/SP/SP-B Boards . 416-29. Printed Wiring Board DISPLAY Board . 426-30. Schematic Diagram DISPLA

31、Y Board . 436-31. Printed Wiring Boards MUTING/POWER/SW Boards . 446-32. Schematic Diagram MUTING/POWER/SW Boards . 456-33. Printed Wiring Boards AC/DC 1/DC 2/V.SWITCH Boards . 466-34. Schematic Diagram AC/DC 1/DC 2/V.SWITCH Boards . 476-35. IC Pin Function Description . 587.EXPLODED VIEWS7-1.Case S

32、ection . 707-2.Front Panel Section-1. 717-3.Front Panel Section-2. 727-4.Chassis Section-1 . 737-5.Chassis Section-2 . 747-6.Chassis Section-3 . 757-7.Chassis Section-4 . 767-8.BIAS Board Section. 777-9.MAIN Board Section . 787-10. Foot Section . 798.ELECTRICAL PARTS LIST. 80TABLE OF CONTENTS5STR-DA

33、2ES/DB1080SECTION 1SERVICING NOTES MODEL IDENTIFICATION Back Panel PART No.ModelPART No.DA2ES : US model4-239-175-0DA2ES : Canadian model4-239-175-1DB1080: Singapore and Malaysia models4-239-175-2DB1080: AEP and UK models4-239-175-3DB1080: E model4-239-175-4DB1080: Korean model4-239-175-5SERVICE POS

34、ITIONIn checking the DIGITAL board, prepare jig (extension cable J-2501-208-A: 200 mm 21 core).Connect jig (extension cable J-2501-208-A)to the MAIN board (CN806, CN807) and DIGITAL board (CN1102, CN1103).Note:The power cord can be used unplugged from theback panel though, as it is hard to do it,it

35、is easier to prepare other power cord anduse it as a jig.DIGITAL boardMAIN boardpower cord6STR-DA2ES/DB1080SECTION 2GENERALThis section is extracted frominstruction manual.LOCATION OF CONTROLS Front Panel ANALOG DIRECT qh AUDIO SPLIT 0 AUTO DEC ql CINEMA STUDIO EX wd Cursor buttons (/) ej CUSTOMIZE

36、r; Digital Cinema Sound indicator 5DIGITAL CONCERT HALL wsDIMMER wh DISPLAY 3 Display 7DOOR OPEN qfENTER eh EQ ek EQUALIZER es FM/AM wa FM MODE rf FUNCTION qs INPUT MODE qd IR receptor 2Jog dial eg LEVEL ef MASTER VOLUME 9 MEMORY e; MODE +/ qj MULTI CH DIRECT qg MULTI CHANNEL DECODINGindicator 8MUTI

37、NG qa NIGHT MODE ra NIGHT MODE indicator 4NORMAL SURR(;PLII/NEO:6) wg ON SCREEN wj PHONES jack wkPRESET TUNING +/ w; RDS PTY rd (Models of area codeCEL, CEK only)SB DEC indicator 6SET UP ed SLEEP rd (Models of area codeSP, KR, E only)SPEAKERS switch wl SURR el SURR BACK DECODING wfTEST TONE rs TUNIN

38、G +/ ea (Models of area code U, CA,SP, KR, E only)TUNING/PTY SELECT +/ ea(Models of area code CEL, CEKonly)VIDEO 3 INPUT jacks rg (16)2CH STEREO qk 2ND ROOM rd (58)(Models of area code U, CAonly)?/1 (power) 1+1 23 4 5 6789q;qaqsqdqfqgqhqjql qkw;wawgwhwjwkwlwfwd wse;eaes ed efegejr;elraehekrsrgrdrf7S

39、TR-DA2ES/DB1080 This set can be disassembled in the order shown below.3-1.DISASSEMBLY FLOWSECTION 3DISASSEMBLYSET3-3. S-VIDEO BOARD, VIDEO BOARD, UP CONVERT BOARD AND TUNER(Page 8)3-2. CASE (414535)(Page 8)3-5. DIGITAL BOARD(Page 9)3-6. MAIN BOARD, MIX BOARD(Page 10)3-4. VIDEO AU BOARD(Page 9)8STR-D

40、A2ES/DB1080Note: Follow the disassembly procedure in the numerical order given.3-2.CASE (414535)3-3.S-VIDEO BOARD, VIDEO BOARD, UP CONVERT BOARD (DA2ES) AND TUNER1two flat head screws1two flat head screws1two flat head screws1two flat head screws3case (414535)221connector(CN853)4S-video board, video

41、 board andup convert board (DA2ES)2wire (flat type) (15 core) (DB1080)wire (flat type) (21 core) (DA2ES)(CN303)5wire (flat type) (15 core)3six screws (BV/RING)6three screws (BV/RING)3two screws (BV/RING)(except DB1080: AEP, UK models)7tuner9STR-DA2ES/DB10803-4.VIDEO.AU BOARD1wire (flat type) (9 core

42、) (DB1080)wire (flat type) (15 core) (DA2ES)(CN201)4video AU board2connector(CN202)3two screws (BV/RING)3screw (BV/RING) (DB1080: AEP, UK models)3screw (BV/RING) (DA2ES)3-5.DIGITAL BOARD1wire (flat type) (31 core)(CN1101)2four connectors(CN1106, CN1108, CN1109, CN1110)6five screws(BV/RING)8digital b

43、oard7two connectors(CN1102, CN1103)4bracket (digital 3)5screw(BVTP3 8)3screw(BVTP3 8)3screw(BVTP3 8)Note: When installing the digital board (CN1101), connecting the wire (flat type) (31 core) to the digital board beforehand improves the operatability.10STR-DA2ES/DB10803-6.MAIN BOARD, MIX BOARD3two s

44、crews(BVTP3 8)3two screws(BVTP3 8)4screw (BVTP3 8)2eight screws (BV/RING)1three connectors(CN801, CN803, CN805)1connector (CN902)56connector (CN809)7twelve screws(transistor)6six connectors(CN681, CN631, CN431, CN481, CN531, CN581)9main board,mix board8heat sink11STR-DA2ES/DB1080SECTION 4TEST MODETU

45、NER FACTORY PRESET MODEAll preset contents are reset to the default setting.Procedure:1.While pressing the DIMMER and SET UP buttons, pressthe I/1button to turn on the main power.2.The message “TUNER FACTORY PRESET” appears and thepresent contents are reset to the default values.TUNER AM STEP CHANGE

46、 (9 kHz/10 kHz) MODE(Except STR-DB1080: AEP and UK models)Either the 9 kHz step or 10 kHz step can be selected for the AMchannel step.Procedure:1.While pressing the PRESET TUNING + or TUNING +button, press the I/1button to turn on the main power.2.Either the message “AM 9 kHz Step” or “AM 10 kHz Ste

47、p”appears. Select the desired step.TUNER AUTOBETICAL TUNING MODE(STR-DB1080: AEP and UK models)Procedure:1.While pressing the MEMORY button, press the I/1buttonto turn on the main power.2.The message “Autobetical select” appears and scans and storesall the FM and FM RDS stations in the broadcast are

48、a.3.When done, the message “Autobetical finished” appears.SOUND FIELD CLEAR MODEThe preset sound field is cleared when this mode is activated. Usethis mode before returning the product to clients upon completionof repair.Procedure:1.While pressing the MODE + button, press theI/1button toturn on the

49、main power.2.The message “S.F Initialize” appears and initialization isperformed.ALL CLEAR MODEAll preset contents are cleared when this mode is activated. Usethis mode before returning the product to clients upon completionof repair.Procedure:1.While pressing the AUTO DEC. and MODE + buttons, press

50、the I/1button to turn on the main power.2.The message “MEMORY CLEARED !” appears and thememories are reset to the default values.MENU EXPAND FOR DEBUG MODEProcedure:1.Press the I/1button to turn on the main power.2.Press two buttons of CINEMA STUDIO EX and ENTERsimultaneously.3.The message “MENU SPE